On 12/26/2011 11:22 AM, David Herrmann wrote:On Mon, Dec 26, 2011 at 10:49 AM, Corentin Chary
On Sat, Dec 24, 2011 at 3:28 PM, David Herrmann
On Sat, Dec 24, 2011 at 3:20 PM, Matthew
On Sat, Dec 24, 2011 at 02:12:57PM +0000, Andrzej Prochyra wrote:'acpi_video0' not functional. Brightness can be controlled through
intel_backlight interface. There are 21 brightness levels and the
backlight can be turned off.
If acpi_video0 doesn't work then we either need to work out why
working or make it vanish completely, so this patch isn't the correct
Just to make clear, intel_backlight isn't working properly either. If
my laptop boots with backlight at 50% then intel_backlight will only
work in the range 0%-50% on my machine. If I use the samsung module to
set it to 100% then intel_backlight works correctly in the range
0-100% until next reboot/suspend.
So I'd recommend staying with the samsung module and disabling the
acpi_backlight entirely. The samsung module is the only backlight
control which works properly.
Can I take a look at the DSDT to see how it's broken ?
If it's really not functional, then it should be added to the
blacklist in video_detect.c
Raw and disassembled dsdt is attached.
Took a quick look but didn't find anything obvious. What happens exactly
with acpi_video0 ?