[Bug 62281] New: intel_backlight not working

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=62281

            Bug ID: 62281
           Summary: intel_backlight not working
           Product: Drivers
           Version: 2.5
    Kernel Version: v3.12-rc2 + patchset "Fix Win8 backlight issue"(by
                    Aaron Lu)
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - Intel)
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: jrg.otte at gmail.com
                CC: intel-gfx-bugs at lists.freedesktop.org
        Regression: No

Patchset "Fix Win8 backlight issue" breaks backlight on my
laptop. Sometime backlight is bright, sometimes it's dark and it
can't be modified with the function keys. Writing integer values
into /sys/class/backlight/intel_backlight/brightness also does
not work. So sometimes I am left with an unusable laptop.

Patchset: http://marc.info/?t=138001608800001&r=1&w=2
Video driver: i915
HW: FUJITSU LIFEBOOK AH532/FJNBB1C, BIOS Version 1.09 05/22/2012

I was told the culprit is i915
(-> http://marc.info/?l=dri-devel&m=138024096722789&w=2)
so I file this bug against i915.

-- 
You are receiving this mail because:
You are on the CC list for the bug.
You are the assignee for the bug.