# autorandr.py
# Copyright (c) 2015, Phillip Berndt
#
-# Experimental autorandr rewrite in Python
+# Autorandr rewrite in Python
#
# This script aims to be fully compatible with the original autorandr.
#
#
from __future__ import print_function
-import copy
-import getopt
import binascii
+import copy
+import getopt
import hashlib
import os
+import posix
+import pwd
import re
import subprocess
import sys
-from distutils.version import LooseVersion as Version
+import shutil
+import time
-from itertools import chain
from collections import OrderedDict
+from distutils.version import LooseVersion as Version
+from functools import reduce
+from itertools import chain
+
+try:
+ input = raw_input
+except NameError:
+ pass
virtual_profiles = [
# (name, description, callback)
-h, --help get this small help
-c, --change reload current setup
-s, --save <profile> save your current setup to profile <profile>
+-r, --remove <profile> remove profile <profile>
-l, --load <profile> load profile <profile>
-d, --default <profile> make profile <profile> the default profile
+--skip-options <option> comma separated list of xrandr arguments (e.g. "gamma")
+ to skip both in detecting changes and applying a profile
--force force (re)loading of a profile
--fingerprint fingerprint your current hardware setup
--config dump your current xrandr setup
--dry-run don't change anything, only print the xrandr commands
+--debug enable verbose output
+--batch run autorandr for all users with active X11 sessions
- To prevent a profile from being loaded, place a script call "block" in its
+ To prevent a profile from being loaded, place a script called "block" in its
directory. The script is evaluated before the screen setup is inspected, and
in case of it returning a value of 0 the profile is skipped. This can be used
to query the status of a docking station you are about to leave.
To change this behaviour and switch to a fallback configuration, specify
--default <profile>.
- Another script called "postswitch "can be placed in the directory
- ~/.autorandr as well as in any profile directories: The scripts are executed
- after a mode switch has taken place and can notify window managers.
+ Another script called "postswitch" can be placed in the directory
+ ~/.config/autorandr (or ~/.autorandr if you have an old installation) as well
+ as in any profile directories: The scripts are executed after a mode switch
+ has taken place and can notify window managers.
The following virtual configurations are available:
""".strip()
+class AutorandrException(Exception):
+ def __init__(self, message, original_exception=None, report_bug=False):
+ self.message = message
+ self.report_bug = report_bug
+ if original_exception:
+ self.original_exception = original_exception
+ trace = sys.exc_info()[2]
+ while trace.tb_next:
+ trace = trace.tb_next
+ self.line = trace.tb_lineno
+ else:
+ try:
+ import inspect
+ self.line = inspect.currentframe().f_back.f_lineno
+ except:
+ self.line = None
+ self.original_exception = None
+
+ def __str__(self):
+ retval = [ self.message ]
+ if self.line:
+ retval.append(" (line %d)" % self.line)
+ if self.original_exception:
+ retval.append(":\n ")
+ retval.append(str(self.original_exception).replace("\n", "\n "))
+ if self.report_bug:
+ retval.append("\nThis appears to be a bug. Please help improving autorandr by reporting it upstream:"
+ "\nhttps://github.com/phillipberndt/autorandr/issues"
+ "\nPlease attach the output of `xrandr --verbose` to your bug report if appropriate.")
+ return "".join(retval)
+
class XrandrOutput(object):
"Represents an XRandR output"
(?: # Differentiate disconnected and connected in first line
disconnected |
unknown\ connection |
- (?P<connected>connected)\s+ # If connected:
- (?:
- (?P<primary>primary\ )? # Might be primary screen
+ (?P<connected>connected)
+ )
+ \s*
+ (?P<primary>primary\ )? # Might be primary screen
+ (?:\s*
(?P<width>[0-9]+)x(?P<height>[0-9]+) # Resolution (might be overridden below!)
- \+(?P<x>[0-9]+)\+(?P<y>[0-9]+)\s+ # Position
+ \+(?P<x>-?[0-9]+)\+(?P<y>-?[0-9]+)\s+ # Position
(?:\(0x[0-9a-fA-F]+\)\s+)? # XID
(?P<rotate>(?:normal|left|right|inverted))\s+ # Rotation
(?:(?P<reflect>X\ and\ Y|X|Y)\ axis)? # Reflection
- )? # .. but everything of the above only if the screen is in use.
- ).*
+ )? # .. but everything of the above only if the screen is in use.
+ (?:[\ \t]*\([^\)]+\))(?:\s*[0-9]+mm\sx\s[0-9]+mm)?
+ (?:[\ \t]*panning\ (?P<panning>[0-9]+x[0-9]+\+[0-9]+\+[0-9]+))? # Panning information
+ (?:[\ \t]*tracking\ (?P<tracking>[0-9]+x[0-9]+\+[0-9]+\+[0-9]+))? # Tracking information
+ (?:[\ \t]*border\ (?P<border>(?:[0-9]+/){3}[0-9]+))? # Border information
(?:\s*(?: # Properties of the output
- Gamma: (?P<gamma>[0-9\.:\s]+) | # Gamma value
- Transform: (?P<transform>[0-9\.\s]+) | # Transformation matrix
- EDID: (?P<edid>[0-9a-f\s]+) | # EDID of the output
+ Gamma: (?P<gamma>(?:inf|[0-9\.: e])+) | # Gamma value
+ Transform: (?P<transform>(?:[\-0-9\. ]+\s+){3}) | # Transformation matrix
+ EDID: (?P<edid>\s*?(?:\\n\\t\\t[0-9a-f]+)+) | # EDID of the output
(?![0-9])[^:\s][^:\n]+:.*(?:\s\\t[\\t ].+)* # Other properties
))+
\s*
(?P<modes>(?:
- (?P<mode_width>[0-9]+)x(?P<mode_height>[0-9]+).+?\*current.+\s+
- h:.+\s+v:.+clock\s+(?P<rate>[0-9\.]+)Hz\s* | # Interesting (current) resolution: Extract rate
- [0-9]+x[0-9]+.+\s+h:.+\s+v:.+\s* # Other resolutions
+ (?P<mode_name>\S+).+?\*current.*\s+ # Interesting (current) resolution: Extract rate
+ h:\s+width\s+(?P<mode_width>[0-9]+).+\s+
+ v:\s+height\s+(?P<mode_height>[0-9]+).+clock\s+(?P<rate>[0-9\.]+)Hz\s* |
+ \S+(?:(?!\*current).)+\s+h:.+\s+v:.+\s* # Other resolutions
)*)
"""
XRANDR_OUTPUT_MODES_REGEXP = """(?x)
- (?P<width>[0-9]+)x(?P<height>[0-9]+)
- .*?(?P<preferred>\+preferred)?
- \s+h:.+
- \s+v:.+clock\s+(?P<rate>[0-9\.]+)Hz
+ (?P<name>\S+).+?(?P<preferred>\+preferred)?\s+
+ h:\s+width\s+(?P<width>[0-9]+).+\s+
+ v:\s+height\s+(?P<height>[0-9]+).+clock\s+(?P<rate>[0-9\.]+)Hz\s* |
"""
+ XRANDR_13_DEFAULTS = {
+ "transform": "1,0,0,0,1,0,0,0,1",
+ "panning": "0x0",
+ }
+
+ XRANDR_12_DEFAULTS = {
+ "reflect": "normal",
+ "rotate": "normal",
+ "gamma": "1.0:1.0:1.0",
+ }
+
+ XRANDR_DEFAULTS = dict(list(XRANDR_13_DEFAULTS.items()) + list(XRANDR_12_DEFAULTS.items()))
+
+ EDID_UNAVAILABLE = "--CONNECTED-BUT-EDID-UNAVAILABLE-"
+
def __repr__(self):
- return "<%s%s %s>" % (self.output, (" %s..%s" % (self.edid[:5], self.edid[-5:])) if self.edid else "", " ".join(self.option_vector))
+ return "<%s%s %s>" % (self.output, self.short_edid, " ".join(self.option_vector))
+
+ @property
+ def short_edid(self):
+ return ("%s..%s" % (self.edid[:5], self.edid[-5:])) if self.edid else ""
@property
def options_with_defaults(self):
return self.options
options = {}
if xrandr_version() >= Version("1.3"):
- options.update({
- "transform": "1,0,0,0,1,0,0,0,1",
- })
+ options.update(self.XRANDR_13_DEFAULTS)
if xrandr_version() >= Version("1.2"):
- options.update({
- "reflect": "normal",
- "rotate": "normal",
- "gamma": "1:1:1",
- })
+ options.update(self.XRANDR_12_DEFAULTS)
options.update(self.options)
- return options
+ return { a: b for a, b in options.items() if a not in self.ignored_options }
+
+ @property
+ def filtered_options(self):
+ "Return a dictionary of options without ignored options"
+ return { a: b for a, b in self.options.items() if a not in self.ignored_options }
@property
def option_vector(self):
"Return the command line parameters for XRandR for this instance"
- return sum([["--%s" % option[0], option[1]] if option[1] else ["--%s" % option[0]] for option in chain((("output", self.output),), self.options_with_defaults.items())], [])
+ return sum([["--%s" % option[0], option[1]] if option[1] else ["--%s" % option[0]] for option in chain((("output", self.output),), sorted(self.options_with_defaults.items()))], [])
@property
def option_string(self):
"Return the command line parameters in the configuration file format"
- return "\n".join([ " ".join(option) if option[1] else option[0] for option in chain((("output", self.output),), self.options.items())])
+ return "\n".join([ " ".join(option) if option[1] else option[0] for option in chain((("output", self.output),), sorted(self.filtered_options.items()))])
@property
def sort_key(self):
"Return a key to sort the outputs for xrandr invocation"
if not self.edid:
+ return -2
+ if "off" in self.options:
return -1
if "pos" in self.options:
x, y = map(float, self.options["pos"].split("x"))
self.output = output
self.edid = edid
self.options = options
+ self.ignored_options = []
+ self.remove_default_option_values()
+
+ def set_ignored_options(self, options):
+ "Set a list of xrandr options that are never used (neither when comparing configurations nor when applying them)"
+ self.ignored_options = list(options)
+
+ def remove_default_option_values(self):
+ "Remove values from the options dictionary that are superflous"
+ if "off" in self.options and len(self.options.keys()) > 1:
+ self.options = { "off": None }
+ return
+ for option, default_value in self.XRANDR_DEFAULTS.items():
+ if option in self.options and self.options[option] == default_value:
+ del self.options[option]
@classmethod
def from_xrandr_output(cls, xrandr_output):
This method also returns a list of modes supported by the output.
"""
try:
+ xrandr_output = xrandr_output.replace("\r\n", "\n")
match_object = re.search(XrandrOutput.XRANDR_OUTPUT_REGEXP, xrandr_output)
except:
- raise RuntimeError("Parsing XRandR output failed, there is an error in the regular expression.")
+ raise AutorandrException("Parsing XRandR output failed, there is an error in the regular expression.", report_bug = True)
if not match_object:
debug = debug_regexp(XrandrOutput.XRANDR_OUTPUT_REGEXP, xrandr_output)
- raise RuntimeError("Parsing XRandR output failed, the regular expression did not match: %s" % debug)
+ raise AutorandrException("Parsing XRandR output failed, the regular expression did not match: %s" % debug, report_bug = True)
remainder = xrandr_output[len(match_object.group(0)):]
if remainder:
- raise RuntimeError(("Parsing XRandR output failed, %d bytes left unmatched after regular expression,"
- "starting with ..'%s'.") % (len(remainder), remainder[:10]))
-
+ raise AutorandrException(("Parsing XRandR output failed, %d bytes left unmatched after regular expression, "
+ "starting at byte %d with ..'%s'.") % (len(remainder), len(match_object.group(0)), remainder[:10]), report_bug=True)
match = match_object.groupdict()
modes = []
if match["modes"]:
- modes = [ x.groupdict() for x in re.finditer(XrandrOutput.XRANDR_OUTPUT_MODES_REGEXP, match["modes"]) ]
+ modes = [ x.groupdict() for x in re.finditer(XrandrOutput.XRANDR_OUTPUT_MODES_REGEXP, match["modes"]) if x.group("name") ]
if not modes:
- raise RuntimeError("Parsing XRandR output failed, couldn't find any display modes")
+ raise AutorandrException("Parsing XRandR output failed, couldn't find any display modes", report_bug=True)
options = {}
if not match["connected"]:
- options["off"] = None
edid = None
- elif not match["width"]:
+ else:
+ edid = "".join(match["edid"].strip().split()) if match["edid"] else "%s-%s" % (XrandrOutput.EDID_UNAVAILABLE, match["output"])
+
+ if not match["width"]:
options["off"] = None
- edid = "".join(match["edid"].strip().split())
else:
- if "mode_width" in match:
+ if match["mode_name"]:
+ options["mode"] = match["mode_name"]
+ elif match["mode_width"]:
options["mode"] = "%sx%s" % (match["mode_width"], match["mode_height"])
else:
if match["rotate"] not in ("left", "right"):
options["mode"] = "%sx%s" % (match["width"], match["height"])
else:
options["mode"] = "%sx%s" % (match["height"], match["width"])
- if match["rotate"] != "normal":
- options["rotate"] = match["rotate"]
- if "primary" in match and match["primary"]:
+ options["rotate"] = match["rotate"]
+ if match["primary"]:
options["primary"] = None
- if "reflect" in match:
- if match["reflect"] == "X":
- options["reflect"] = "x"
- elif match["reflect"] == "Y":
- options["reflect"] = "y"
- elif match["reflect"] == "X and Y":
- options["reflect"] = "xy"
+ if match["reflect"] == "X":
+ options["reflect"] = "x"
+ elif match["reflect"] == "Y":
+ options["reflect"] = "y"
+ elif match["reflect"] == "X and Y":
+ options["reflect"] = "xy"
options["pos"] = "%sx%s" % (match["x"], match["y"])
+ if match["panning"]:
+ panning = [ match["panning"] ]
+ if match["tracking"]:
+ panning += [ "/", match["tracking"] ]
+ if match["border"]:
+ panning += [ "/", match["border"] ]
+ options["panning"] = "".join(panning)
if match["transform"]:
transformation = ",".join(match["transform"].strip().split())
if transformation != "1.000000,0.000000,0.000000,0.000000,1.000000,0.000000,0.000000,0.000000,1.000000":
options["transform"] = transformation
- if "mode_width" not in match:
+ if not match["mode_name"]:
# TODO We'd need to apply the reverse transformation here. Let's see if someone complains, I doubt that this
# special case is actually required.
- print("Warning: Output %s has a transformation applied. Could not determine correct mode!", file=sys.stderr)
+ print("Warning: Output %s has a transformation applied. Could not determine correct mode! Using `%s'." % (match["output"], options["mode"]), file=sys.stderr)
if match["gamma"]:
gamma = match["gamma"].strip()
- if gamma != "1.0:1.0:1.0":
- options["gamma"] = gamma
+ # xrandr prints different values in --verbose than it accepts as a parameter value for --gamma
+ # Also, it is not able to work with non-standard gamma ramps. Finally, it auto-corrects 0 to 1,
+ # so we approximate by 1e-10.
+ gamma = ":".join([ str(max(1e-10, round(1./float(x), 3))) for x in gamma.split(":") ])
+ options["gamma"] = gamma
if match["rate"]:
options["rate"] = match["rate"]
- edid = "".join(match["edid"].strip().split())
return XrandrOutput(match["output"], edid, options), modes
line = line.split(None, 1)
options[line[0]] = line[1] if len(line) > 1 else None
+ edid = None
+
if options["output"] in edid_map:
edid = edid_map[options["output"]]
- elif "off" in options:
- edid = None
else:
+ # This fuzzy matching is for legacy autorandr that used sysfs output names
fuzzy_edid_map = [ re.sub("(card[0-9]+|-)", "", x) for x in edid_map.keys() ]
fuzzy_output = re.sub("(card[0-9]+|-)", "", options["output"])
- if fuzzy_output not in fuzzy_edid_map:
- raise RuntimeError("Failed to find a corresponding output in config/setup for output `%s'" % options["output"])
- edid = edid_map[list(edid_map.keys())[fuzzy_edid_map.index(fuzzy_output)]]
+ if fuzzy_output in fuzzy_edid_map:
+ edid = edid_map[list(edid_map.keys())[fuzzy_edid_map.index(fuzzy_output)]]
+ elif "off" not in options:
+ raise AutorandrException("Failed to find an EDID for output `%s' in setup file, required as `%s' is not off in config file." % (options["output"], options["output"]))
output = options["output"]
del options["output"]
def edid_equals(self, other):
"Compare to another XrandrOutput's edid and on/off-state, taking legacy autorandr behaviour (md5sum'ing) into account"
if self.edid and other.edid:
- if len(self.edid) == 32 and len(other.edid) != 32:
+ if len(self.edid) == 32 and len(other.edid) != 32 and not other.edid.startswith(XrandrOutput.EDID_UNAVAILABLE):
return hashlib.md5(binascii.unhexlify(other.edid)).hexdigest() == self.edid
- if len(self.edid) != 32 and len(other.edid) == 32:
+ if len(self.edid) != 32 and len(other.edid) == 32 and not self.edid.startswith(XrandrOutput.EDID_UNAVAILABLE):
return hashlib.md5(binascii.unhexlify(self.edid)).hexdigest() == other.edid
return self.edid == other.edid
+ def __ne__(self, other):
+ return not (self == other)
+
def __eq__(self, other):
- return self.edid == other.edid and self.output == other.output and self.options == other.options
+ return self.edid_equals(other) and self.output == other.output and self.filtered_options == other.filtered_options
+
+ def verbose_diff(self, other):
+ "Compare to another XrandrOutput and return a list of human readable differences"
+ diffs = []
+ if not self.edid_equals(other):
+ diffs.append("EDID `%s' differs from `%s'" % (self.short_edid, other.short_edid))
+ if self.output != other.output:
+ diffs.append("Output name `%s' differs from `%s'" % (self.output, other.output))
+ if "off" in self.options and "off" not in other.options:
+ diffs.append("The output is disabled currently, but active in the new configuration")
+ elif "off" in other.options and "off" not in self.options:
+ diffs.append("The output is currently enabled, but inactive in the new configuration")
+ else:
+ for name in set(chain.from_iterable((self.options.keys(), other.options.keys()))):
+ if name not in other.options:
+ diffs.append("Option --%s %sis not present in the new configuration" % (name, "(= `%s') " % self.options[name] if self.options[name] else ""))
+ elif name not in self.options:
+ diffs.append("Option --%s (`%s' in the new configuration) is not present currently" % (name, other.options[name]))
+ elif self.options[name] != other.options[name]:
+ diffs.append("Option --%s %sis `%s' in the new configuration" % (name, "(= `%s') " % self.options[name] if self.options[name] else "", other.options[name]))
+ return diffs
def xrandr_version():
"Return the version of XRandR that this system uses"
if getattr(xrandr_version, "version", False) is False:
version_string = os.popen("xrandr -v").read()
- version = re.search("xrandr program version\s+([0-9\.]+)", version_string).group(1)
- xrandr_version.version = Version(version)
+ try:
+ version = re.search("xrandr program version\s+([0-9\.]+)", version_string).group(1)
+ xrandr_version.version = Version(version)
+ except AttributeError:
+ xrandr_version.version = Version("1.3.0")
+
return xrandr_version.version
def debug_regexp(pattern, string):
string[partial_length:partial_length+10]))
except ImportError:
pass
- return "Debug information available if `regex' module is installed."
+ return "Debug information would be available if the `regex' module was installed."
def parse_xrandr_output():
"Parse the output of `xrandr --verbose' into a list of outputs"
xrandr_output = os.popen("xrandr -q --verbose").read()
if not xrandr_output:
- raise RuntimeError("Failed to run xrandr")
+ raise AutorandrException("Failed to run xrandr")
# We are not interested in screens
xrandr_output = re.sub("(?m)^Screen [0-9].+", "", xrandr_output).strip()
# Split at output boundaries and instanciate an XrandrOutput per output
split_xrandr_output = re.split("(?m)^([^ ]+ (?:(?:dis)?connected|unknown connection).*)$", xrandr_output)
+ if len(split_xrandr_output) < 2:
+ raise AutorandrException("No output boundaries found", report_bug=True)
outputs = OrderedDict()
modes = OrderedDict()
for i in range(1, len(split_xrandr_output), 2):
if not os.path.isfile(config_name) or not os.path.isfile(setup_name):
continue
- edids = dict([ x.strip().split() for x in open(setup_name).readlines() ])
+ edids = dict([ x.strip().split() for x in open(setup_name).readlines() if x.strip() ])
config = {}
buffer = []
if config[output_name].edid is None:
del config[output_name]
- profiles[profile] = config
+ profiles[profile] = { "config": config, "path": os.path.join(profile_path, profile), "config-mtime": os.stat(config_name).st_mtime }
return profiles
-def find_profile(current_config, profiles):
- "Find a profile matching the currently connected outputs"
+def get_symlinks(profile_path):
+ "Load all symlinks from a directory"
+
+ symlinks = {}
+ for link in os.listdir(profile_path):
+ file_name = os.path.join(profile_path, link)
+ if os.path.islink(file_name):
+ symlinks[link] = os.readlink(file_name)
+
+ return symlinks
+
+def find_profiles(current_config, profiles):
+ "Find profiles matching the currently connected outputs"
+ detected_profiles = []
for profile_name, profile in profiles.items():
+ config = profile["config"]
matches = True
- for name, output in profile.items():
+ for name, output in config.items():
if not output.edid:
continue
if name not in current_config or not output.edid_equals(current_config[name]):
matches = False
break
- if not matches or any(( name not in profile.keys() for name in current_config.keys() if current_config[name].edid )):
+ if not matches or any(( name not in config.keys() for name in current_config.keys() if current_config[name].edid )):
continue
if matches:
- return profile_name
+ detected_profiles.append(profile_name)
+ return detected_profiles
-def profile_blocked(profile_path):
- "Check if a profile is blocked"
- script = os.path.join(profile_path, "blocked")
- if not os.access(script, os.X_OK | os.F_OK):
- return False
- return subprocess.call(script) == 0
+def profile_blocked(profile_path, meta_information=None):
+ """Check if a profile is blocked.
+
+ meta_information is expected to be an dictionary. It will be passed to the block scripts
+ in the environment, as variables called AUTORANDR_<CAPITALIZED_KEY_HERE>.
+ """
+ return not exec_scripts(profile_path, "block", meta_information)
def output_configuration(configuration, config):
"Write a configuration file"
with open(os.path.join(profile_path, "setup"), "w") as setup:
output_setup(configuration, setup)
-def apply_configuration(configuration, dry_run=False):
+def update_mtime(filename):
+ "Update a file's mtime"
+ try:
+ os.utime(filename, None)
+ return True
+ except:
+ return False
+
+def call_and_retry(*args, **kwargs):
+ """Wrapper around subprocess.call that retries failed calls.
+
+ This function calls subprocess.call and on non-zero exit states,
+ waits a second and then retries once. This mitigates #47,
+ a timing issue with some drivers.
+ """
+ kwargs_redirected = dict(kwargs)
+ if hasattr(subprocess, "DEVNULL"):
+ kwargs_redirected["stdout"] = getattr(subprocess, "DEVNULL")
+ else:
+ kwargs_redirected["stdout"] = open(os.devnull, "w")
+ kwargs_redirected["stderr"] = kwargs_redirected["stdout"]
+ retval = subprocess.call(*args, **kwargs_redirected)
+ if retval != 0:
+ time.sleep(1)
+ retval = subprocess.call(*args, **kwargs)
+ return retval
+
+def apply_configuration(new_configuration, current_configuration, dry_run=False):
"Apply a configuration"
- outputs = sorted(configuration.keys(), key=lambda x: configuration[x].sort_key)
+ outputs = sorted(new_configuration.keys(), key=lambda x: new_configuration[x].sort_key)
if dry_run:
base_argv = [ "echo", "xrandr" ]
else:
base_argv = [ "xrandr" ]
- # Disable all unused outputs
- argv = base_argv[:]
+ # There are several xrandr / driver bugs we need to take care of here:
+ # - We cannot enable more than two screens at the same time
+ # See https://github.com/phillipberndt/autorandr/pull/6
+ # and commits f4cce4d and 8429886.
+ # - We cannot disable all screens
+ # See https://github.com/phillipberndt/autorandr/pull/20
+ # - We should disable screens before enabling others, because there's
+ # a limit on the number of enabled screens
+ # - We must make sure that the screen at 0x0 is activated first,
+ # or the other (first) screen to be activated would be moved there.
+ # - If an active screen already has a transformation and remains active,
+ # the xrandr call fails with an invalid RRSetScreenSize parameter error.
+ # Update the configuration in 3 passes in that case. (On Haswell graphics,
+ # at least.)
+ # - Some implementations can not handle --transform at all, so avoid it unless
+ # necessary. (See https://github.com/phillipberndt/autorandr/issues/37)
+
+ auxiliary_changes_pre = []
+ disable_outputs = []
+ enable_outputs = []
+ remain_active_count = 0
for output in outputs:
- if not configuration[output].edid:
- argv += configuration[output].option_vector
- if argv != base_argv:
- if subprocess.call(argv) != 0:
- return False
+ if not new_configuration[output].edid or "off" in new_configuration[output].options:
+ disable_outputs.append(new_configuration[output].option_vector)
+ else:
+ if "off" not in current_configuration[output].options:
+ remain_active_count += 1
- # Enable remaining outputs in pairs of two
- remaining_outputs = [ x for x in outputs if configuration[x].edid ]
- for index in range(0, len(remaining_outputs), 2):
- if subprocess.call((base_argv[:] + configuration[remaining_outputs[index]].option_vector + (configuration[remaining_outputs[index + 1]].option_vector if index < len(remaining_outputs) - 1 else []))) != 0:
+ option_vector = new_configuration[output].option_vector
+ if xrandr_version() >= Version("1.3.0"):
+ if "transform" in current_configuration[output].options:
+ auxiliary_changes_pre.append(["--output", output, "--transform", "none"])
+ else:
+ try:
+ transform_index = option_vector.index("--transform")
+ if option_vector[transform_index+1] == XrandrOutput.XRANDR_DEFAULTS["transform"]:
+ option_vector = option_vector[:transform_index] + option_vector[transform_index+2:]
+ except ValueError:
+ pass
+
+ enable_outputs.append(option_vector)
+
+ # Perform pe-change auxiliary changes
+ if auxiliary_changes_pre:
+ argv = base_argv + list(chain.from_iterable(auxiliary_changes_pre))
+ if call_and_retry(argv) != 0:
+ raise AutorandrException("Command failed: %s" % " ".join(argv))
+
+ # Disable unused outputs, but make sure that there always is at least one active screen
+ disable_keep = 0 if remain_active_count else 1
+ if len(disable_outputs) > disable_keep:
+ if call_and_retry(base_argv + list(chain.from_iterable(disable_outputs[:-1] if disable_keep else disable_outputs))) != 0:
+ # Disabling the outputs failed. Retry with the next command:
+ # Sometimes disabling of outputs fails due to an invalid RRSetScreenSize.
+ # This does not occur if simultaneously the primary screen is reset.
+ pass
+ else:
+ disable_outputs = disable_outputs[-1:] if disable_keep else []
+
+ # If disable_outputs still has more than one output in it, one of the xrandr-calls below would
+ # disable the last two screens. This is a problem, so if this would happen, instead disable only
+ # one screen in the first call below.
+ if len(disable_outputs) > 0 and len(disable_outputs) % 2 == 0:
+ # In the context of a xrandr call that changes the display state, `--query' should do nothing
+ disable_outputs.insert(0, ['--query'])
+
+ # Enable the remaining outputs in pairs of two operations
+ operations = disable_outputs + enable_outputs
+ for index in range(0, len(operations), 2):
+ argv = base_argv + list(chain.from_iterable(operations[index:index+2]))
+ if call_and_retry(argv) != 0:
+ raise AutorandrException("Command failed: %s" % " ".join(argv))
+
+def is_equal_configuration(source_configuration, target_configuration):
+ "Check if all outputs from target are already configured correctly in source"
+ for output in target_configuration.keys():
+ if (output not in source_configuration) or (source_configuration[output] != target_configuration[output]):
return False
+ return True
def add_unused_outputs(source_configuration, target_configuration):
"Add outputs that are missing in target to target, in 'off' state"
if output_name not in target_configuration:
target_configuration[output_name] = XrandrOutput(output_name, output.edid, { "off": None })
+def remove_irrelevant_outputs(source_configuration, target_configuration):
+ "Remove outputs from target that ought to be 'off' and already are"
+ for output_name, output in source_configuration.items():
+ if "off" in output.options and output_name in target_configuration and "off" in target_configuration[output_name].options:
+ del target_configuration[output_name]
+
def generate_virtual_profile(configuration, modes, profile_name):
"Generate one of the virtual profiles"
configuration = copy.deepcopy(configuration)
if profile_name == "common":
- common_resolution = [ set(( ( mode["width"], mode["height"] ) for mode in output )) for output in modes.values() ]
+ common_resolution = [ set(( ( mode["width"], mode["height"] ) for mode in output_modes )) for output, output_modes in modes.items() if configuration[output].edid ]
common_resolution = reduce(lambda a, b: a & b, common_resolution[1:], common_resolution[0])
common_resolution = sorted(common_resolution, key=lambda a: int(a[0])*int(a[1]))
if common_resolution:
for output in configuration:
configuration[output].options = {}
- if output in modes:
- configuration[output].options["mode"] = "%sx%s" % common_resolution[-1]
+ if output in modes and configuration[output].edid:
+ configuration[output].options["mode"] = [ x["name"] for x in sorted(modes[output], key=lambda x: 0 if x["preferred"] else 1) if x["width"] == common_resolution[-1][0] and x["height"] == common_resolution[-1][1] ][0]
configuration[output].options["pos"] = "0x0"
else:
configuration[output].options["off"] = None
for output in configuration:
configuration[output].options = {}
- if output in modes:
+ if output in modes and configuration[output].edid:
mode = sorted(modes[output], key=lambda a: int(a["width"])*int(a["height"]) + (10**6 if a["preferred"] else 0))[-1]
- configuration[output].options["mode"] = "%sx%s" % (mode["width"], mode["height"])
+ configuration[output].options["mode"] = mode["name"]
configuration[output].options["rate"] = mode["rate"]
configuration[output].options["pos"] = pos_specifier % shift
shift += int(mode[shift_index])
configuration[output].options["off"] = None
return configuration
+def print_profile_differences(one, another):
+ "Print the differences between two profiles for debugging"
+ if one == another:
+ return
+ print("| Differences between the two profiles:", file=sys.stderr)
+ for output in set(chain.from_iterable((one.keys(), another.keys()))):
+ if output not in one:
+ if "off" not in another[output].options:
+ print("| Output `%s' is missing from the active configuration" % output, file=sys.stderr)
+ elif output not in another:
+ if "off" not in one[output].options:
+ print("| Output `%s' is missing from the new configuration" % output, file=sys.stderr)
+ else:
+ for line in one[output].verbose_diff(another[output]):
+ print("| [Output %s] %s" % (output, line), file=sys.stderr)
+ print ("\\-", file=sys.stderr)
+
def exit_help():
"Print help and exit"
print(help_text)
print(" %-10s %s" % profile[:2])
sys.exit(0)
-def exec_scripts(profile_path, script_name):
- "Run userscripts"
- for script in (os.path.join(profile_path, script_name), os.path.join(os.path.dirname(profile_path), script_name)):
- if os.access(script, os.X_OK | os.F_OK):
- subprocess.call(script)
+def exec_scripts(profile_path, script_name, meta_information=None):
+ """"Run userscripts
+
+ This will run all executables from the profile folder, and global per-user
+ and system-wide configuration folders, named script_name or residing in
+ subdirectories named script_name.d.
+
+ meta_information is expected to be an dictionary. It will be passed to the block scripts
+ in the environment, as variables called AUTORANDR_<CAPITALIZED_KEY_HERE>.
+
+ Returns True unless any of the scripts exited with non-zero exit status.
+ """
+ all_ok = True
+ if meta_information:
+ env = os.environ.copy()
+ env.update({ "AUTORANDR_%s" % str(key).upper(): str(value) for (key, value) in meta_information.items() })
+ else:
+ env = os.environ.copy()
+
+ # If there are multiple candidates, the XDG spec tells to only use the first one.
+ ran_scripts = set()
+
+ user_profile_path = os.path.expanduser("~/.autorandr")
+ if not os.path.isdir(user_profile_path):
+ user_profile_path = os.path.join(os.environ.get("XDG_CONFIG_HOME", os.path.expanduser("~/.config")), "autorandr")
+
+ for folder in chain((profile_path, os.path.dirname(profile_path), user_profile_path),
+ (os.path.join(x, "autorandr") for x in os.environ.get("XDG_CONFIG_DIRS", "/etc/xdg").split(":"))):
+
+ if script_name not in ran_scripts:
+ script = os.path.join(folder, script_name)
+ if os.access(script, os.X_OK | os.F_OK):
+ all_ok &= subprocess.call(script, env=env) != 0
+ ran_scripts.add(script_name)
+
+ script_folder = os.path.join(folder, "%s.d" % script_name)
+ if os.access(script_folder, os.R_OK | os.X_OK) and os.path.isdir(script_folder):
+ for file_name in os.listdir(script_folder):
+ check_name = "d/%s" % (file_name,)
+ if check_name not in ran_scripts:
+ script = os.path.join(script_folder, file_name)
+ if os.access(script, os.X_OK | os.F_OK):
+ all_ok &= subprocess.call(script, env=env) != 0
+ ran_scripts.add(check_name)
+
+ return all_ok
+
+def dispatch_call_to_sessions(argv):
+ """Invoke autorandr for each open local X11 session with the given options.
+
+ The function iterates over all processes not owned by root and checks
+ whether they have a DISPLAY variable set. It strips the screen from any
+ variable it finds (i.e. :0.0 becomes :0) and checks whether this display
+ has been handled already. If it has not, it forks, changes uid/gid to
+ the user owning the process, reuses the process's environment and runs
+ autorandr with the parameters from argv.
+
+ This function requires root permissions. It only works for X11 servers that
+ have at least one non-root process running. It is susceptible for attacks
+ where one user runs a process with another user's DISPLAY variable - in
+ this case, it might happen that autorandr is invoked for the other user,
+ which won't work. Since no other harm than prevention of automated
+ execution of autorandr can be done this way, the assumption is that in this
+ situation, the local administrator will handle the situation."""
+ X11_displays_done = set()
+
+ autorandr_binary = os.path.abspath(argv[0])
+
+ for directory in os.listdir("/proc"):
+ directory = os.path.join("/proc/", directory)
+ if not os.path.isdir(directory):
+ continue
+ environ_file = os.path.join(directory, "environ")
+ if not os.path.isfile(environ_file):
+ continue
+ uid = os.stat(environ_file).st_uid
+ if uid == 0:
+ continue
+
+ process_environ = {}
+ for environ_entry in open(environ_file).read().split("\0"):
+ if "=" in environ_entry:
+ name, value = environ_entry.split("=", 1)
+ if name == "DISPLAY" and "." in value:
+ value = value[:value.find(".")]
+ process_environ[name] = value
+ display = process_environ["DISPLAY"] if "DISPLAY" in process_environ else None
+
+ if display and display not in X11_displays_done:
+ try:
+ pwent = pwd.getpwuid(uid)
+ except KeyError:
+ # User has no pwd entry
+ continue
+
+ print("Running autorandr as %s for display %s" % (pwent.pw_name, display))
+ child_pid = os.fork()
+ if child_pid == 0:
+ # This will throw an exception if any of the privilege changes fails,
+ # so it should be safe. Also, note that since the environment
+ # is taken from a process owned by the user, reusing it should
+ # not leak any information.
+ os.setgroups([])
+ os.setresgid(pwent.pw_gid, pwent.pw_gid, pwent.pw_gid)
+ os.setresuid(pwent.pw_uid, pwent.pw_uid, pwent.pw_uid)
+ os.chdir(pwent.pw_dir)
+ os.environ.clear()
+ os.environ.update(process_environ)
+ os.execl(autorandr_binary, autorandr_binary, *argv[1:])
+ os.exit(1)
+ os.waitpid(child_pid, 0)
+
+ X11_displays_done.add(display)
def main(argv):
try:
- options = dict(getopt.getopt(argv[1:], "s:l:d:cfh", [ "dry-run", "change", "default=", "save=", "load=", "force", "fingerprint", "config", "help" ])[0])
+ options = dict(getopt.getopt(argv[1:], "s:r:l:d:cfh", [ "batch", "dry-run", "change", "default=", "save=", "remove=", "load=", "force", "fingerprint", "config", "debug", "skip-options=", "help" ])[0])
except getopt.GetoptError as e:
- print(str(e))
- options = { "--help": True }
-
- profile_path = os.path.expanduser("~/.autorandr")
+ print("Failed to parse options: {0}.\n"
+ "Use --help to get usage information.".format(str(e)),
+ file=sys.stderr)
+ sys.exit(posix.EX_USAGE)
+
+ # Batch mode
+ if "--batch" in options:
+ if ("DISPLAY" not in os.environ or not os.environ["DISPLAY"]) and os.getuid() == 0:
+ dispatch_call_to_sessions([ x for x in argv if x != "--batch" ])
+ else:
+ print("--batch mode can only be used by root and if $DISPLAY is unset")
+ return
+ profiles = {}
+ profile_symlinks = {}
try:
- profiles = load_profiles(profile_path)
+ # Load profiles from each XDG config directory
+ # The XDG spec says that earlier entries should take precedence, so reverse the order
+ for directory in reversed(os.environ.get("XDG_CONFIG_DIRS", "/etc/xdg").split(":")):
+ system_profile_path = os.path.join(directory, "autorandr")
+ if os.path.isdir(system_profile_path):
+ profiles.update(load_profiles(system_profile_path))
+ profile_symlinks.update(get_symlinks(system_profile_path))
+ # For the user's profiles, prefer the legacy ~/.autorandr if it already exists
+ # profile_path is also used later on to store configurations
+ profile_path = os.path.expanduser("~/.autorandr")
+ if not os.path.isdir(profile_path):
+ # Elsewise, follow the XDG specification
+ profile_path = os.path.join(os.environ.get("XDG_CONFIG_HOME", os.path.expanduser("~/.config")), "autorandr")
+ if os.path.isdir(profile_path):
+ profiles.update(load_profiles(profile_path))
+ profile_symlinks.update(get_symlinks(profile_path))
+ # Sort by descending mtime
+ profiles = OrderedDict(sorted(profiles.items(), key=lambda x: -x[1]["config-mtime"]))
except Exception as e:
- print("Failed to load profiles:\n%s" % str(e), file=sys.stderr)
- sys.exit(1)
+ raise AutorandrException("Failed to load profiles", e)
- try:
- config, modes = parse_xrandr_output()
- except Exception as e:
- print("Failed to parse current configuration from XRandR:\n%s" % str(e), file=sys.stderr)
- sys.exit(1)
+ profile_symlinks = { k: v for k, v in profile_symlinks.items() if v in (x[0] for x in virtual_profiles) or v in profiles }
+
+ config, modes = parse_xrandr_output()
if "--fingerprint" in options:
output_setup(config, sys.stdout)
output_configuration(config, sys.stdout)
sys.exit(0)
+ if "--skip-options" in options:
+ skip_options = [ y[2:] if y[:2] == "--" else y for y in ( x.strip() for x in options["--skip-options"].split(",") ) ]
+ for profile in profiles.values():
+ for output in profile["config"].values():
+ output.set_ignored_options(skip_options)
+ for output in config.values():
+ output.set_ignored_options(skip_options)
+
if "-s" in options:
options["--save"] = options["-s"]
if "--save" in options:
if options["--save"] in ( x[0] for x in virtual_profiles ):
- print("Cannot save current configuration as profile '%s':\nThis configuration name is a reserved virtual configuration." % options["--save"])
- sys.exit(1)
+ raise AutorandrException("Cannot save current configuration as profile '%s':\nThis configuration name is a reserved virtual configuration." % options["--save"])
try:
- save_configuration(os.path.join(profile_path, options["--save"]), config)
+ profile_folder = os.path.join(profile_path, options["--save"])
+ save_configuration(profile_folder, config)
+ exec_scripts(profile_folder, "postsave", {"CURRENT_PROFILE": options["--save"], "PROFILE_FOLDER": profile_folder})
except Exception as e:
- print("Failed to save current configuration as profile '%s':\n%s" % (options["--save"], str(e)), file=sys.stderr)
- sys.exit(1)
+ raise AutorandrException("Failed to save current configuration as profile '%s'" % (options["--save"],), e)
print("Saved current configuration as profile '%s'" % options["--save"])
sys.exit(0)
+ if "-r" in options:
+ options["--remove"] = options["-r"]
+ if "--remove" in options:
+ if options["--remove"] in ( x[0] for x in virtual_profiles ):
+ raise AutorandrException("Cannot remove profile '%s':\nThis configuration name is a reserved virtual configuration." % options["--remove"])
+ if options["--remove"] not in profiles.keys():
+ raise AutorandrException("Cannot remove profile '%s':\nThis profile does not exist." % options["--remove"])
+ try:
+ remove = True
+ profile_folder = os.path.join(profile_path, options["--remove"])
+ profile_dirlist = os.listdir(profile_folder)
+ profile_dirlist.remove("config")
+ profile_dirlist.remove("setup")
+ if profile_dirlist:
+ print("Profile folder '%s' contains the following additional files:\n---\n%s\n---" % (options["--remove"], "\n".join(profile_dirlist)))
+ response = input("Do you really want to remove profile '%s'? If so, type 'yes': " % options["--remove"]).strip()
+ if response != "yes":
+ remove = False
+ if remove is True:
+ shutil.rmtree(profile_folder)
+ print("Removed profile '%s'" % options["--remove"])
+ else:
+ print("Profile '%s' was not removed" % options["--remove"])
+ except Exception as e:
+ raise AutorandrException("Failed to remove profile '%s'" % (options["--remove"],), e)
+ sys.exit(0)
+
if "-h" in options or "--help" in options:
exit_help()
- detected_profile = find_profile(config, profiles)
+ detected_profiles = find_profiles(config, profiles)
load_profile = False
if "-l" in options:
if "--load" in options:
load_profile = options["--load"]
else:
+ # Find the active profile(s) first, for the block script (See #42)
+ current_profiles = []
+ for profile_name in profiles.keys():
+ configs_are_equal = is_equal_configuration(config, profiles[profile_name]["config"])
+ if configs_are_equal:
+ current_profiles.append(profile_name)
+ block_script_metadata = {
+ "CURRENT_PROFILE": "".join(current_profiles[:1]),
+ "CURRENT_PROFILES": ":".join(current_profiles)
+ }
+
for profile_name in profiles.keys():
- if profile_blocked(os.path.join(profile_path, profile_name)):
- print("%s (blocked)" % profile_name)
+ if profile_blocked(os.path.join(profile_path, profile_name), block_script_metadata):
+ print("%s (blocked)" % profile_name, file=sys.stderr)
continue
- if detected_profile == profile_name:
- print("%s (detected)" % profile_name)
- if "-c" in options or "--change" in options:
- load_profile = detected_profile
- else:
- print(profile_name)
+ props = []
+ if profile_name in detected_profiles:
+ props.append("(detected)")
+ if ("-c" in options or "--change" in options) and not load_profile:
+ load_profile = profile_name
+ if profile_name in current_profiles:
+ props.append("(current)")
+ print("%s%s%s" % (profile_name, " " if props else "", " ".join(props)), file=sys.stderr)
+ if not configs_are_equal and "--debug" in options and profile_name in detected_profiles:
+ print_profile_differences(config, profiles[profile_name]["config"])
if "-d" in options:
options["--default"] = options["-d"]
load_profile = options["--default"]
if load_profile:
+ if load_profile in profile_symlinks:
+ if "--debug" in options:
+ print("'%s' symlinked to '%s'" % (load_profile, profile_symlinks[load_profile]))
+ load_profile = profile_symlinks[load_profile]
+
if load_profile in ( x[0] for x in virtual_profiles ):
- profile = generate_virtual_profile(config, modes, load_profile)
+ load_config = generate_virtual_profile(config, modes, load_profile)
+ scripts_path = os.path.join(profile_path, load_profile)
else:
try:
profile = profiles[load_profile]
+ load_config = profile["config"]
+ scripts_path = profile["path"]
except KeyError:
- print("Failed to load profile '%s':\nProfile not found" % load_profile, file=sys.stderr)
- sys.exit(1)
- add_unused_outputs(config, profile)
- if profile == config and not "-f" in options and not "--force" in options:
- print("Config already loaded")
+ raise AutorandrException("Failed to load profile '%s': Profile not found" % load_profile)
+ if load_profile in detected_profiles and detected_profiles[0] != load_profile:
+ update_mtime(os.path.join(scripts_path, "config"))
+ add_unused_outputs(config, load_config)
+ if load_config == dict(config) and not "-f" in options and not "--force" in options:
+ print("Config already loaded", file=sys.stderr)
sys.exit(0)
+ if "--debug" in options and load_config != dict(config):
+ print("Loading profile '%s'" % load_profile)
+ print_profile_differences(config, load_config)
+
+ remove_irrelevant_outputs(config, load_config)
try:
if "--dry-run" in options:
- apply_configuration(profile, True)
+ apply_configuration(load_config, config, True)
else:
- exec_scripts(os.path.join(profile_path, load_profile), "preswitch")
- apply_configuration(profile, False)
- exec_scripts(os.path.join(profile_path, load_profile), "postswitch")
+ script_metadata = {
+ "CURRENT_PROFILE": load_profile,
+ "PROFILE_FOLDER": scripts_path,
+ }
+ exec_scripts(scripts_path, "preswitch", script_metadata)
+ if "--debug" in options:
+ print("Going to run:")
+ apply_configuration(load_config, config, True)
+ apply_configuration(load_config, config, False)
+ exec_scripts(scripts_path, "postswitch", script_metadata)
except Exception as e:
- print("Failed to apply profile '%s':\n%s" % (load_profile, str(e)), file=sys.stderr)
- sys.exit(1)
+ raise AutorandrException("Failed to apply profile '%s'" % load_profile, e, True)
+
+ if "--dry-run" not in options and "--debug" in options:
+ new_config, _ = parse_xrandr_output()
+ if not is_equal_configuration(new_config, load_config):
+ print("The configuration change did not go as expected:")
+ print_profile_differences(new_config, load_config)
sys.exit(0)
if __name__ == '__main__':
try:
main(sys.argv)
- except Exception as e:
- print("General failure. Please report this as a bug:\n%s" % (str(e),), file=sys.stderr)
+ except AutorandrException as e:
+ print(e, file=sys.stderr)
sys.exit(1)
+ except Exception as e:
+ if not len(str(e)): # BdbQuit
+ print("Exception: {0}".format(e.__class__.__name__))
+ sys.exit(2)
+
+ print("Unhandled exception ({0}). Please report this as a bug at https://github.com/phillipberndt/autorandr/issues.".format(e), file=sys.stderr)
+ raise
projects / deb_pkgs / autorandr.git / blobdiff