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| author | Takashi Iwai | 2011-11-16 10:58:03 +0100 |
|---|---|---|
| committer | Keith Packard | 2011-11-17 21:59:58 +0100 |
| commit | 04b38670cf46c096705f24e92a8747d1ab89e53c (patch) | |
| tree | 2aa34cbb1e725f2f2c50bee3d1da76d5cc1e14d5 /drivers/gpu/drm/i915/intel_dp.c | |
| parent | drm, i915: Fix memory leak in i915_gem_busy_ioctl(). (diff) | |
| download | kernel-qcow2-linux-04b38670cf46c096705f24e92a8747d1ab89e53c.tar.gz kernel-qcow2-linux-04b38670cf46c096705f24e92a8747d1ab89e53c.tar.xz kernel-qcow2-linux-04b38670cf46c096705f24e92a8747d1ab89e53c.zip | |
drm/i915: Fix inconsistent backlight level during disabled
When the brightness property is inquired while the backlight is disabled,
the driver returns a wrong value (zero) because it probes the value after
the backlight was turned off. This caused a black screen even after the
backlight is enabled again. It should return the internal backlight_level
instead, so that it won't be influenced by the backlight-enable state.
BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=41926
BugLink: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/872652
Tested-by: Kamal Mostafa <kamal@canonical.com>
Cc: Alex Davis <alex14641@yahoo.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
0 files changed, 0 insertions, 0 deletions