On Sun, Oct 05, 2014 at 02:45:34PM +0200, Alessandro Ghedini wrote: > On gio, set 25, 2014 at 03:08:35 +0200, onetmt wrote: > > Package: linux-image > > Version: 3.16-2-amd64 > > Severity: important > > > > --- Please enter the report below this line. --- > > With 3.16 debian kernels, backlight controller is always at its max > > value (255); entry in /sys/class/backlight/acpi_video0, formerly used to > > control backlighting, isn't created anymore (only switchable graphic > > card controller /sys/class/backlight/radeon_bl is created). > > I see the same behaviour on a Toshiba Satellite laptop. Not sure what would be > useful information to debug this though. 3 seconds after sending this I found a discussion somewhere that suggested to use the video.use_native_backlight=0 kernel command-line option, and it worked for me. This is still pretty annoying though, since I didn't need this before. Cheers
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