* Melchior FRANZ -- Friday 06 May 2011: > last patch prevents the backlight from being turned off, but it also > breaks the brightness adjustment keys at runtime with acpi_osi=Linux. It has turned out that acpi key events seem to be handled correctly and even the state of /sys/class/backlight/acer-wmi/brightness is updated accordingly. The only problem is that this maintained brightness state isn't applied to the actual backlight. It remains at highest level. Google pointed me to this workaround for another Acer notebook: https://help.ubuntu.com/community/AspireTimeline/Fixes#Alternative%20fix%20for%2010.10 This uses the acpid to write the brightness value to the display using setpci. And this works on my notebook as well (Acer Travelmate 5735Z-452G32Mnss). Not pretty but better than nothing. Is Acer not able to build proper notebooks? Or is it a kernel bug? m. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
