X-Git-Url: https://iankelling.org/git/?a=blobdiff_plain;f=laptop-xrandr;h=4a0891a99821c8d829689b61f28d754b115a21af;hb=refs%2Fheads%2Fmaster;hp=417c9f7694d71c7d9b3c956e197e031af53cf39b;hpb=50f25d1eec109c4596cfc638c9a7c98da0f0b5d0;p=distro-setup

diff --git a/laptop-xrandr b/laptop-xrandr
index 417c9f7..28c840e 100755
--- a/laptop-xrandr
+++ b/laptop-xrandr
@@ -23,18 +23,27 @@
 set -e; . /usr/local/lib/bash-bear; set +e
 
 
-output=HDMI2
-output=DP1
-
-if xrandr | grep -q "^$output disconnected" &>/dev/null; then
-  xrandr --auto
-else
+output=$(xrandr | grep -E "^(HDMI.?|DP1) connected" | awk '{print $1}' ||:)
+
+left_right_arg=--right-of
+if [[ $output ]]; then
+
+  if [[ $output == HDMI2 ]]; then
+    sum=$(sha256sum </sys/class/drm/card0-HDMI-A-2/edid | grep -oE '^.{10}')
+    # identify monitor that is always on the left.
+    if [[ $sum == 192efbdcef ]]; then
+      left_right_arg=--left-of
+    fi
+  fi
   xrandr --output $output --off
   sleep 2
-  xrandr --output $output --right-of eDP1 --mode 3840x2160
+  xrandr --output $output $left_right_arg eDP1 --mode 3840x2160
 
   for i in 1 2 4 5 6 7 8 9 10; do
     # if the workspace is already there, this will fail
     i3-msg '[workspace="'$i'"]' move workspace to output $output ||:
   done
+else
+  xrandr --auto
+
 fi