contrib/pm-utils/40autorandr

   1 #!/bin/sh
   2 #
   3 # 40autorandr: Change autorandr profile on thaw/resume
   4 exec > /var/log/autorandr.log 2>&1
   5
   6 AUTORANDR="autorandr -c --default default"
   7
   8 detect_display()
   9 {
  10         for X in /tmp/.X11-unix/X*; do
  11                 D="${X##/tmp/.X11-unix/X}"
  12                 # Prefer w to who, see bug #39
  13                 if [ -x "`which w`" ]; then
  14                         user="`w -h | awk -vD="$D" '$2 ~ ":"D"(.[0-9])?$" || $3 ~ ":"D"(.[0-9])?$" {print $1}' | head -n1`"
  15
  16                         if [ -z "$user" ];      then
  17                                 # This fallback checks if there is exactly one user (except
  18                                 # root) logged in an interactive session and assumes the
  19                                 # session belongs to him. See bug #39.
  20                                 user="`w -hu | awk '/^\w+/ && $1 !~ "root" { users[$1]=$1; } ENDFILE { if(asort(users) == 1) for(u in users) print users[u]; }'`"
  21                         fi
  22                 else
  23                         user="`who --all | awk -vD="$D" '$3 ~ ":"D"(.[0-9])?$" {print $1}' | head -1`"
  24
  25                         if [ -z "$user" ];      then
  26                                 # Same fallback as above; see bug #39.
  27                                 user="`who -u | awk '/^\w+/ && $1 !~ "root" { users[$1]=$1; } ENDFILE { if(asort(users) == 1) for(u in users) print users[u]; }'`"
  28                         fi
  29                 fi
  30
  31                 if [ x"$user" != x"" ]; then
  32                         logger "autorandr: Changing display configuration for display :$D, user '$user'"
  33                         export DISPLAY=":$D"
  34                         /bin/su -c "${AUTORANDR}" "$user"
  35                 fi
  36         done
  37 }
  38
  39 if grep -q systemd $(readlink -f $(awk '{print $1}' /proc/1/cmdline)) && [ "$2" = "udev" ]; then
  40     exec /bin/systemctl start autorandr-resume.service
  41 fi
  42
  43 case "$1" in
  44         thaw|resume)
  45                 detect_display
  46                 ;;
  47 esac