1 files changed, 55 insertions, 0 deletions
diff --git a/bin/adjust_dpms b/bin/adjust_dpms
new file mode 100755
index 0000000..c8e8a0f
--- /dev/null
+++ b/bin/adjust_dpms
@@ -0,0 +1,55 @@
+#!/bin/bash
+# Script to adjust dpms settings when running certain programs,
+# that don't use fullscreen, but should not be "blanked" in between.
+# Programs are defined in separate config file ~/.config/dpms
+# Run as timed user script (i.e. adjust_dpms@.service) with systemd 
+# from /etc/systemd/system/timer-minutely.target.wants
+
+export DISPLAY=:0.0
+
+config="/home/$(whoami)/.config/dpms"
+blankoff=0
+
+# check for config file existence
+if [[ -f $config ]];then
+  . /home/dave/.config/dpms
+else
+  echo "Config file not readable $config"
+  exit 1
+fi
+
+# loop all programs and check for running instances
+for i in "${programs[@]}"
+do
+  pid=$(pidof -x $i)
+  re='^[0-9]+$'
+  if  [[ $pid =~ $re ]]; then
+    echo "$i running ($pid)"
+    blankoff=1
+  fi
+done
+
+# if valuable programs are running, don't use screen blanking
+if [ $blankoff -gt 0 ]; then
+  echo "Some program requires screensaver to be off."
+  # print currently set values for screensaver timeout to tmp file
+  echo "s $(xset q|grep timeout|awk '{print $2}') $(xset q|grep timeout|awk '{print $4}')" > $adjust_dpms
+  echo "dpms $(xset q|grep Standby|awk '{print $2}') $(xset q|grep Standby|awk '{print $4}') $(xset q|grep Standby|awk '{print $6}')" >> $adjust_dpms
+  # disable screensaver and dpms
+  xset s off
+  xset -dpms
+else
+  xsetq=$(xset q|grep timeout|awk '{print $2}')
+  # if the timeout is still 0, set it to its former value, or just switch on screensaver/dpms again
+  if [[ $xsetq -eq 0 ]];then
+    if [[ -f "$adjust_dpms" ]];then
+      xset $(head -n1 $adjust_dpms)
+      xset $(tail -n1 $adjust_dpms)
+      rm -rf $adjust_dpms
+    else
+      xset +dpms
+      xset s on
+    fi
+  fi
+fi
+