There seems to be a problem with /sys/class/backlight, which gets
referred by /usr/lib/pm-utils/sleep.d/99video:
reset_brightness() {
for bl in /sys/class/backlight/* ; do
[ -d $bl ] || continue
[ -f $bl/brightness ] || continue
BR=$(cat $bl/brightness)
echo 0 > $bl/brightness
echo $BR > $bl/brightness
done
}
However /sys/class/backligzht is empty and thuis the function just has no
function. Loading of modules "lcd" and "cr_bllcd" does not change this.
Still working on it...
--
strange Xorg screen blanking control after resume from suspend to disk
https://bugs.launchpad.net/bugs/127173
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