X-Git-Url: https://iankelling.org/git/?a=blobdiff_plain;f=laptop-xrandr;h=4a0891a99821c8d829689b61f28d754b115a21af;hb=HEAD;hp=af21928b789f1ef4cd95089463966e4c7cc849a9;hpb=9a0f77b0495e6f2643d5646c54b4c99cf3118c67;p=distro-setup

diff --git a/laptop-xrandr b/laptop-xrandr
index af21928..28c840e 100755
--- a/laptop-xrandr
+++ b/laptop-xrandr
@@ -1,19 +1,49 @@
 #!/bin/bash
+# I, Ian Kelling, follow the GNU license recommendations at
+# https://www.gnu.org/licenses/license-recommendations.en.html. They
+# recommend that small programs, < 300 lines, be licensed under the
+# Apache License 2.0. This file contains or is part of one or more small
+# programs. If a small program grows beyond 300 lines, I plan to switch
+# its license to GPL.
+
+# Copyright 2024 Ian Kelling
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 set -e; . /usr/local/lib/bash-bear; set +e
 
 
-output=HDMI2
-output=DP1
+output=$(xrandr | grep -E "^(HDMI.?|DP1) connected" | awk '{print $1}' ||:)
 
-if xrandr | grep -q "^$output disconnected" &>/dev/null; then
-  xrandr --auto
-else
+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