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 # Work around #44: Long user names in w
   9 export PROCPS_USERLEN=32
  10
  11 detect_display()
  12 {
  13         for X in /tmp/.X11-unix/X*; do
  14                 D="${X##/tmp/.X11-unix/X}"
  15                 # Prefer w to who, see bug #39
  16                 if [ -x "`which w`" ]; then
  17                         user="`w -h | awk -vD="$D" '$2 ~ ":"D"(.[0-9])?$" || $3 ~ ":"D"(.[0-9])?$" {print $1}' | head -n1`"
  18
  19                         if [ -z "$user" ];      then
  20                                 # This fallback checks if there is exactly one user (except
  21                                 # root) logged in an interactive session and assumes the
  22                                 # session belongs to him. See bug #39.
  23                                 user="`w -hu | awk '/^\w+/ && $1 !~ "root" { users[$1]=$1; } ENDFILE { if(asort(users) == 1) for(u in users) print users[u]; }'`"
  24                         fi
  25                 else
  26                         user="`who --all | awk -vD="$D" '$3 ~ ":"D"(.[0-9])?$" {print $1}' | head -1`"
  27
  28                         if [ -z "$user" ];      then
  29                                 # Same fallback as above; see bug #39.
  30                                 user="`who -u | awk '/^\w+/ && $1 !~ "root" { users[$1]=$1; } ENDFILE { if(asort(users) == 1) for(u in users) print users[u]; }'`"
  31                         fi
  32                 fi
  33
  34                 if [ x"$user" != x"" ]; then
  35                         logger "autorandr: Changing display configuration for display :$D, user '$user'"
  36                         export DISPLAY=":$D"
  37                         /bin/su -c "${AUTORANDR}" "$user"
  38                 fi
  39         done
  40 }
  41
  42 if grep -q systemd /proc/1/comm && [ "$2" = "udev" ]; then
  43     exec /bin/systemctl start autorandr-resume.service
  44 fi
  45
  46 case "$1" in
  47         thaw|resume)
  48                 detect_display
  49                 ;;
  50 esac