https://bugzilla.novell.com/show_bug.cgi?id=747692
https://bugzilla.novell.com/show_bug.cgi?id=747692#c3
--- Comment #3 from Frank Schäfer 2012-03-12 14:41:48 UTC ---
It seems to be a X11 bug.
I can trigger it by changing the brightness with xbacklight.
I also tried changing the brightness with
echo "5" > /sys/class/backlight/samsung/brightness
which works as expected as long as the xserver is not running.
With the xserver running, the brightness changes, but to a random value. dmesg
shows the following errors:
ACPI: Failed to switch the brightness
Anyone from openSUSE/Novell willing to take a look at this ?
I think this is a critical bug, because it makes these devices unusable with
Linux. Bug 682528 could be related to this.
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