X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=autorandr.py;h=2a4ddb7f3baffdf10f6c6d3847ed90c18afec40f;hb=a3e0693ea48225f41222537499dd3eb132f4e5b3;hp=119500bd1cbc73b18c167635ddaeb3523fd9b2dc;hpb=ed4eab647ab041a22ba25bec0a115e5f66a5a543;p=deb_pkgs%2Fautorandr.git

diff --git a/autorandr.py b/autorandr.py
index 119500b..2a4ddb7 100755
--- a/autorandr.py
+++ b/autorandr.py
@@ -26,6 +26,7 @@ from __future__ import print_function
 
 import binascii
 import copy
+import fnmatch
 import getopt
 import hashlib
 import os
@@ -42,6 +43,13 @@ from distutils.version import LooseVersion as Version
 from functools import reduce
 from itertools import chain
 
+if sys.version_info.major == 2:
+    import ConfigParser as configparser
+else:
+    import configparser
+
+__version__ = "1.5"
+
 try:
     input = raw_input
 except NameError:
@@ -49,6 +57,7 @@ except NameError:
 
 virtual_profiles = [
     # (name, description, callback)
+    ("off", "Disable all outputs", None),
     ("common", "Clone all connected outputs at the largest common resolution", None),
     ("clone-largest", "Clone all connected outputs with the largest resolution (scaled down if necessary)", None),
     ("horizontal", "Stack all connected outputs horizontally at their largest resolution", None),
@@ -59,33 +68,29 @@ help_text = """
 Usage: autorandr [options]
 
 -h, --help              get this small help
--c, --change            reload current setup
+-c, --change            automatically load the first detected profile
+-d, --default <profile> make profile <profile> the default profile
+-l, --load <profile>    load profile <profile>
 -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
+--batch                 run autorandr for all users with active X11 sessions
+--current               only list current (active) configuration(s)
 --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 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.
+--detected              only list detected (available) configuration(s)
+--dry-run               don't change anything, only print the xrandr commands
+--fingerprint           fingerprint your current hardware setup
+--force                 force (re)loading of a profile
+--skip-options <option> comma separated list of xrandr arguments (e.g. "gamma")
+                        to skip both in detecting changes and applying a profile
+--version               show version information and exit
 
  If no suitable profile can be identified, the current configuration is kept.
  To change this behaviour and switch to a fallback configuration, specify
  --default <profile>.
 
- 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.
+ autorandr supports a set of per-profile and global hooks. See the documentation
+ for details.
 
  The following virtual configurations are available:
 """.strip()
@@ -136,8 +141,8 @@ class XrandrOutput(object):
     # This regular expression is used to parse an output in `xrandr --verbose'
     XRANDR_OUTPUT_REGEXP = """(?x)
         ^(?P<output>[^ ]+)\s+                                                           # Line starts with output name
-        (?:                                                                             # Differentiate disconnected and connected in first line
-            disconnected |
+        (?:                                                                             # Differentiate disconnected and connected
+            disconnected |                                                              # in first line
             unknown\ connection |
             (?P<connected>connected)
         )
@@ -149,7 +154,7 @@ class XrandrOutput(object):
             (?:\(0x[0-9a-fA-F]+\)\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 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
@@ -162,8 +167,8 @@ class XrandrOutput(object):
         ))+
         \s*
         (?P<modes>(?:
-            (?P<mode_name>\S+).+?\*current.*\s+                                         # Interesting (current) resolution: Extract rate
-             h:\s+width\s+(?P<mode_width>[0-9]+).+\s+
+            (?P<mode_name>\S+).+?\*current.*\s+                                         # Interesting (current) resolution:
+             h:\s+width\s+(?P<mode_width>[0-9]+).+\s+                                   # Extract rate
              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
         )*)
@@ -218,12 +223,23 @@ class XrandrOutput(object):
     @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),), sorted(self.options_with_defaults.items()))], [])
+        args = ["--output", self.output]
+        for option, arg in sorted(self.options_with_defaults.items()):
+            args.append("--%s" % option)
+            if arg:
+                args.append(arg)
+        return args
 
     @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),), sorted(self.filtered_options.items()))])
+        options = ["output %s" % self.output]
+        for option, arg in sorted(self.filtered_options.items()):
+            if arg:
+                options.append("%s %s" % (option, arg))
+            else:
+                options.append(option)
+        return "\n".join(options)
 
     @property
     def sort_key(self):
@@ -269,28 +285,37 @@ class XrandrOutput(object):
             xrandr_output = xrandr_output.replace("\r\n", "\n")
             match_object = re.search(XrandrOutput.XRANDR_OUTPUT_REGEXP, xrandr_output)
         except:
-            raise AutorandrException("Parsing XRandR output failed, there is an error in the regular expression.", report_bug=True)
+            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 AutorandrException("Parsing XRandR output failed, the regular expression did not match: %s" % debug, report_bug=True)
+            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 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)
+            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"]) if x.group("name")]
+            modes = []
+            for mode_match in re.finditer(XrandrOutput.XRANDR_OUTPUT_MODES_REGEXP, match["modes"]):
+                if mode_match.group("name"):
+                    modes.append(mode_match.groupdict())
             if not modes:
                 raise AutorandrException("Parsing XRandR output failed, couldn't find any display modes", report_bug=True)
 
         options = {}
         if not match["connected"]:
             edid = None
+        elif match["edid"]:
+            edid = "".join(match["edid"].strip().split())
         else:
-            edid = "".join(match["edid"].strip().split()) if match["edid"] else "%s-%s" % (XrandrOutput.EDID_UNAVAILABLE, match["output"])
+            edid = "%s-%s" % (XrandrOutput.EDID_UNAVAILABLE, match["output"])
 
         if not match["width"]:
             options["off"] = None
@@ -326,9 +351,10 @@ class XrandrOutput(object):
                 if transformation != "1.000000,0.000000,0.000000,0.000000,1.000000,0.000000,0.000000,0.000000,1.000000":
                     options["transform"] = transformation
                     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! Using `%s'." % (match["output"], options["mode"]), file=sys.stderr)
+                        # 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! "
+                              "Using `%s'." % (match["output"], options["mode"]), file=sys.stderr)
             if match["gamma"]:
                 gamma = match["gamma"].strip()
                 # xrandr prints different values in --verbose than it accepts as a parameter value for --gamma
@@ -363,7 +389,8 @@ class XrandrOutput(object):
             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"]))
+                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"]
 
@@ -376,6 +403,10 @@ class XrandrOutput(object):
                 return hashlib.md5(binascii.unhexlify(other.edid)).hexdigest() == self.edid
             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
+            if "*" in self.edid:
+                return fnmatch.fnmatch(other.edid, self.edid)
+            elif "*" in other.edid:
+                return fnmatch.fnmatch(self.edid, other.edid)
         return self.edid == other.edid
 
     def __ne__(self, other):
@@ -398,11 +429,14 @@ class XrandrOutput(object):
         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 ""))
+                    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]))
+                    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]))
+                    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
 
 
@@ -430,9 +464,9 @@ def debug_regexp(pattern, string):
                 break
             bounds = (half, bounds[1]) if regex.search(pattern, string[:half], partial=True) else (bounds[0], half - 1)
         partial_length = bounds[0]
-        return ("Regular expression matched until position "
-                "%d, ..'%s', and did not match from '%s'.." % (partial_length, string[max(0, partial_length - 20):partial_length],
-                                                               string[partial_length:partial_length + 10]))
+        return ("Regular expression matched until position %d, ..'%s', and did not match from '%s'.." %
+                (partial_length, string[max(0, partial_length - 20):partial_length],
+                 string[partial_length:partial_length + 10]))
     except ImportError:
         pass
     return "Debug information would be available if the `regex' module was installed."
@@ -488,7 +522,11 @@ def load_profiles(profile_path):
             if config[output_name].edid is None:
                 del config[output_name]
 
-        profiles[profile] = {"config": config, "path": os.path.join(profile_path, profile), "config-mtime": os.stat(config_name).st_mtime}
+        profiles[profile] = {
+            "config": config,
+            "path": os.path.join(profile_path, profile),
+            "config-mtime": os.stat(config_name).st_mtime,
+        }
 
     return profiles
 
@@ -593,6 +631,35 @@ def call_and_retry(*args, **kwargs):
     return retval
 
 
+def get_fb_dimensions(configuration):
+    width = 0
+    height = 0
+    for output in configuration.values():
+        if "off" in output.options or not output.edid:
+            continue
+        # This won't work with all modes -- but it's a best effort.
+        o_width, o_height = map(int, output.options["mode"].split("x"))
+        if "transform" in output.options:
+            a, b, c, d, e, f, g, h, i = map(float, output.options["transform"].split(","))
+            w = (g * o_width + h * o_height + i)
+            x = (a * o_width + b * o_height + c) / w
+            y = (d * o_width + e * o_height + f) / w
+            o_width, o_height = x, y
+        if "pos" in output.options:
+            o_left, o_top = map(int, output.options["pos"].split("x"))
+            o_width += o_left
+            o_height += o_top
+        if "panning" in output.options:
+            match = re.match("(?P<w>[0-9]+)x(?P<h>[0-9]+)(?:\+(?P<x>[0-9]+))?(?:\+(?P<y>[0-9]+))?.*", output.options["panning"])
+            if match:
+                detail = match.groupdict()
+                o_width = int(detail.get("w")) + int(detail.get("x", "0"))
+                o_height = int(detail.get("h")) + int(detail.get("y", "0"))
+        width = max(width, o_width)
+        height = max(height, o_height)
+    return int(width), int(height)
+
+
 def apply_configuration(new_configuration, current_configuration, dry_run=False):
     "Apply a configuration"
     outputs = sorted(new_configuration.keys(), key=lambda x: new_configuration[x].sort_key)
@@ -621,6 +688,13 @@ def apply_configuration(new_configuration, current_configuration, dry_run=False)
     #   explicitly, so avoid it unless necessary.
     #   (See https://github.com/phillipberndt/autorandr/issues/72)
 
+    fb_dimensions = get_fb_dimensions(new_configuration)
+    try:
+        base_argv += ["--fb", "%dx%d" % fb_dimensions]
+    except:
+        # Failed to obtain frame-buffer size. Doesn't matter, xrandr will choose for the user.
+        pass
+
     auxiliary_changes_pre = []
     disable_outputs = []
     enable_outputs = []
@@ -634,9 +708,9 @@ def apply_configuration(new_configuration, current_configuration, dry_run=False)
 
             option_vector = new_configuration[output].option_vector
             if xrandr_version() >= Version("1.3.0"):
-                for option in ("transform", "panning"):
+                for option, off_value in (("transform", "none"), ("panning", "0x0")):
                     if option in current_configuration[output].options:
-                        auxiliary_changes_pre.append(["--output", output, "--%s" % option, "none"])
+                        auxiliary_changes_pre.append(["--output", output, "--%s" % option, off_value])
                     else:
                         try:
                             option_index = option_vector.index("--%s" % option)
@@ -656,7 +730,8 @@ def apply_configuration(new_configuration, current_configuration, dry_run=False)
     # 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)), dry_run=dry_run) != 0:
+        argv = base_argv + list(chain.from_iterable(disable_outputs[:-1] if disable_keep else disable_outputs))
+        if call_and_retry(argv, dry_run=dry_run) != 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.
@@ -680,10 +755,24 @@ def apply_configuration(new_configuration, current_configuration, dry_run=False)
 
 
 def is_equal_configuration(source_configuration, target_configuration):
-    "Check if all outputs from target are already configured correctly in source"
+    """
+        Check if all outputs from target are already configured correctly in source and
+        that no other outputs are active.
+    """
     for output in target_configuration.keys():
-        if (output not in source_configuration) or (source_configuration[output] != target_configuration[output]):
-            return False
+        if "off" in target_configuration[output].options:
+            if (output in source_configuration or "off" not in source_configuration[output].options):
+                return False
+        else:
+            if (output not in source_configuration) or (source_configuration[output] != target_configuration[output]):
+                return False
+    for output in source_configuration.keys():
+        if "off" in source_configuration[output].options:
+            if output in target_configuration and "off" not in target_configuration.options:
+                return False
+        else:
+            if output not in target_configuration:
+                return False
     return True
 
 
@@ -697,22 +786,33 @@ def add_unused_outputs(source_configuration, target_configuration):
 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]
+        if "off" in output.options:
+            if output_name in target_configuration:
+                if "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_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])
+        mode_sets = []
+        for output, output_modes in modes.items():
+            mode_set = set()
+            if configuration[output].edid:
+                for mode in output_modes:
+                    mode_set.add((mode["width"], mode["height"]))
+            mode_sets.append(mode_set)
+        common_resolution = reduce(lambda a, b: a & b, mode_sets[1:], mode_sets[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 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]
+                    modes_sorted = sorted(modes[output], key=lambda x: 0 if x["preferred"] else 1)
+                    modes_filtered = [x for x in modes_sorted if (x["width"], x["height"]) == common_resolution[-1]]
+                    mode = modes_filtered[0]
+                    configuration[output].options["mode"] = mode['name']
                     configuration[output].options["pos"] = "0x0"
                 else:
                     configuration[output].options["off"] = None
@@ -728,7 +828,13 @@ def generate_virtual_profile(configuration, modes, profile_name):
         for output in configuration:
             configuration[output].options = {}
             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]
+                def key(a):
+                    score = int(a["width"]) * int(a["height"])
+                    if a["preferred"]:
+                        score += 10**6
+                    return score
+                output_modes = sorted(modes[output], key=key)
+                mode = output_modes[-1]
                 configuration[output].options["mode"] = mode["name"]
                 configuration[output].options["rate"] = mode["rate"]
                 configuration[output].options["pos"] = pos_specifier % shift
@@ -736,20 +842,34 @@ def generate_virtual_profile(configuration, modes, profile_name):
             else:
                 configuration[output].options["off"] = None
     elif profile_name == "clone-largest":
-        biggest_resolution = sorted([output_modes[0] for output, output_modes in modes.items()], key=lambda x: int(x["width"]) * int(x["height"]), reverse=True)[0]
+        modes_unsorted = [output_modes[0] for output, output_modes in modes.items()]
+        modes_sorted = sorted(modes_unsorted, key=lambda x: int(x["width"]) * int(x["height"]), reverse=True)
+        biggest_resolution = modes_sorted[0]
         for output in configuration:
             configuration[output].options = {}
             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]
+                def key(a):
+                    score = int(a["width"]) * int(a["height"])
+                    if a["preferred"]:
+                        score += 10**6
+                    return score
+                output_modes = sorted(modes[output], key=key)
+                mode = output_modes[-1]
                 configuration[output].options["mode"] = mode["name"]
                 configuration[output].options["rate"] = mode["rate"]
                 configuration[output].options["pos"] = "0x0"
-                scale = max(float(biggest_resolution["width"]) / float(mode["width"]), float(biggest_resolution["height"]) / float(mode["height"]))
+                scale = max(float(biggest_resolution["width"]) / float(mode["width"]),
+                            float(biggest_resolution["height"]) / float(mode["height"]))
                 mov_x = (float(mode["width"]) * scale - float(biggest_resolution["width"])) / -2
                 mov_y = (float(mode["height"]) * scale - float(biggest_resolution["height"])) / -2
                 configuration[output].options["transform"] = "{},0,{},0,{},{},0,0,1".format(scale, mov_x, scale, mov_y)
             else:
                 configuration[output].options["off"] = None
+    elif profile_name == "off":
+        for output in configuration:
+            for key in list(configuration[output].options.keys()):
+                del configuration[output].options[key]
+            configuration[output].options["off"] = None
     return configuration
 
 
@@ -757,18 +877,18 @@ 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)
+    print("| Differences between the two profiles:")
     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)
+                print("| Output `%s' is missing from the active configuration" % output)
         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)
+                print("| Output `%s' is missing from the new configuration" % output)
         else:
             for line in one[output].verbose_diff(another[output]):
-                print("| [Output %s] %s" % (output, line), file=sys.stderr)
-    print("\\-", file=sys.stderr)
+                print("| [Output %s] %s" % (output, line))
+    print("\\-")
 
 
 def exit_help():
@@ -802,11 +922,10 @@ def exec_scripts(profile_path, script_name, meta_information=None):
     Returns True unless any of the scripts exited with non-zero exit status.
     """
     all_ok = True
+    env = os.environ.copy()
     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()
+        for key, value in meta_information.items():
+            env["AUTORANDR_{}".format(key.upper())] = str(value)
 
     # If there are multiple candidates, the XDG spec tells to only use the first one.
     ran_scripts = set()
@@ -815,12 +934,13 @@ def exec_scripts(profile_path, script_name, meta_information=None):
     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")
 
-    candidate_directories = chain((user_profile_path,), (os.path.join(x, "autorandr") for x in os.environ.get("XDG_CONFIG_DIRS", "/etc/xdg").split(":")))
+    candidate_directories = [user_profile_path]
+    for config_dir in os.environ.get("XDG_CONFIG_DIRS", "/etc/xdg").split(":"):
+        candidate_directories.append(os.path.join(config_dir, "autorandr"))
     if profile_path:
-        candidate_directories = chain((profile_path,), candidate_directories)
+        candidate_directories.append(profile_path)
 
     for folder in candidate_directories:
-
         if script_name not in ran_scripts:
             script = os.path.join(folder, script_name)
             if os.access(script, os.X_OK | os.F_OK):
@@ -907,8 +1027,8 @@ def dispatch_call_to_sessions(argv):
 
         process_environ = {}
         for environ_entry in open(environ_file).read().split("\0"):
-            if "=" in environ_entry:
-                name, value = environ_entry.split("=", 1)
+            name, sep, value = environ_entry.partition("=")
+            if name and sep:
                 if name == "DISPLAY" and "." in value:
                     value = value[:value.find(".")]
                 process_environ[name] = value
@@ -953,9 +1073,21 @@ def dispatch_call_to_sessions(argv):
             X11_displays_done.add(display)
 
 
+def read_config(options, directory):
+    """Parse a configuration config.ini from directory and merge it into
+    the options dictionary"""
+    config = configparser.ConfigParser()
+    config.read(os.path.join(directory, "settings.ini"))
+    if config.has_section("config"):
+        for key, value in config.items("config"):
+            options.setdefault("--%s" % key, value)
+
 def main(argv):
     try:
-        opts, args = getopt.getopt(argv[1:], "s:r:l:d:cfh", ["batch", "dry-run", "change", "default=", "save=", "remove=", "load=", "force", "fingerprint", "config", "debug", "skip-options=", "help"])
+        opts, args = getopt.getopt(argv[1:], "s:r:l:d:cfh",
+                                   ["batch", "dry-run", "change", "default=", "save=", "remove=", "load=",
+                                    "force", "fingerprint", "config", "debug", "skip-options=", "help",
+                                    "current", "detected", "version"])
     except getopt.GetoptError as e:
         print("Failed to parse options: {0}.\n"
               "Use --help to get usage information.".format(str(e)),
@@ -967,6 +1099,14 @@ def main(argv):
     if "-h" in options or "--help" in options:
         exit_help()
 
+    if "--version" in options:
+        print("autorandr " + __version__)
+        sys.exit(0)
+
+    if "--current" in options and "--detected" in options:
+        print("--current and --detected are mutually exclusive.", 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:
@@ -989,6 +1129,7 @@ def main(argv):
             if os.path.isdir(system_profile_path):
                 profiles.update(load_profiles(system_profile_path))
                 profile_symlinks.update(get_symlinks(system_profile_path))
+                read_config(options, 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")
@@ -998,6 +1139,7 @@ def main(argv):
         if os.path.isdir(profile_path):
             profiles.update(load_profiles(profile_path))
             profile_symlinks.update(get_symlinks(profile_path))
+            read_config(options, profile_path)
         # Sort by descending mtime
         profiles = OrderedDict(sorted(profiles.items(), key=lambda x: -x[1]["config-mtime"]))
     except Exception as e:
@@ -1028,11 +1170,16 @@ def main(argv):
         options["--save"] = options["-s"]
     if "--save" in options:
         if options["--save"] in (x[0] for x in virtual_profiles):
-            raise AutorandrException("Cannot save current configuration as profile '%s':\nThis configuration name is a reserved virtual configuration." % options["--save"])
+            raise AutorandrException("Cannot save current configuration as profile '%s':\n"
+                                     "This configuration name is a reserved virtual configuration." % options["--save"])
         try:
             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})
+            exec_scripts(profile_folder, "postsave", {
+                "CURRENT_PROFILE": options["--save"],
+                "PROFILE_FOLDER": profile_folder,
+                "MONITORS": ":".join(config.keys()),
+            })
         except Exception as e:
             raise AutorandrException("Failed to save current configuration as profile '%s'" % (options["--save"],), e)
         print("Saved current configuration as profile '%s'" % options["--save"])
@@ -1042,9 +1189,11 @@ def main(argv):
         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"])
+            raise AutorandrException("Cannot remove profile '%s':\n"
+                                     "This 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"])
+            raise AutorandrException("Cannot remove profile '%s':\n"
+                                     "This profile does not exist." % options["--remove"])
         try:
             remove = True
             profile_folder = os.path.join(profile_path, options["--remove"])
@@ -1052,7 +1201,8 @@ def main(argv):
             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)))
+                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
@@ -1072,6 +1222,8 @@ def main(argv):
         options["--load"] = options["-l"]
     if "--load" in options:
         load_profile = options["--load"]
+    elif len(args) == 1:
+        load_profile = args[0]
     else:
         # Find the active profile(s) first, for the block script (See #42)
         current_profiles = []
@@ -1086,22 +1238,30 @@ def main(argv):
 
         for profile_name in profiles.keys():
             if profile_blocked(os.path.join(profile_path, profile_name), block_script_metadata):
-                print("%s (blocked)" % profile_name, file=sys.stderr)
+                if "--current" not in options and "--detected" not in options:
+                    print("%s (blocked)" % profile_name)
                 continue
             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
+            elif "--detected" in options:
+                continue
             if profile_name in current_profiles:
                 props.append("(current)")
-            print("%s%s%s" % (profile_name, " " if props else "", " ".join(props)), file=sys.stderr)
+            elif "--current" in options:
+                continue
+            if "--current" in options or "--detected" in options:
+                print("%s" % (profile_name, ))
+            else:
+                print("%s%s%s" % (profile_name, " " if props else "", " ".join(props)))
             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"]
-    if not load_profile and "--default" in options:
+    if not load_profile and "--default" in options and ("-c" in options or "--change" in options):
         load_profile = options["--default"]
 
     if load_profile:
@@ -1139,6 +1299,7 @@ def main(argv):
                 script_metadata = {
                     "CURRENT_PROFILE": load_profile,
                     "PROFILE_FOLDER": scripts_path,
+                    "MONITORS": ":".join(load_config.keys()),
                 }
                 exec_scripts(scripts_path, "preswitch", script_metadata)
                 if "--debug" in options:
@@ -1171,7 +1332,9 @@ def exception_handled_main(argv=sys.argv):
             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)
+        print("Unhandled exception ({0}). Please report this as a bug at "
+              "https://github.com/phillipberndt/autorandr/issues.".format(e),
+              file=sys.stderr)
         raise