* [Bug 109375] Regression: dark notebook display (no backlight) after resume
2019-01-16 10:14 [Bug 109375] Regression: dark notebook display (no backlight) after resume bugzilla-daemon
@ 2019-01-16 10:17 ` bugzilla-daemon
2019-01-16 15:13 ` bugzilla-daemon
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From: bugzilla-daemon @ 2019-01-16 10:17 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=109375
--- Comment #1 from Rafał Miłecki <zajec5@gmail.com> ---
For a comparison: behavior with the commit 262485a50fd4~1 (before the
regression):
Before suspend:
> cat /sys/class/backlight/amdgpu_bl0/{actual_brightness,brightness}
255
255
After resume:
> cat /sys/class/backlight/amdgpu_bl0/{actual_brightness,brightness}
250
255
Looks like a problem with amdgpu restoring backlight after resume.
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* [Bug 109375] Regression: dark notebook display (no backlight) after resume
2019-01-16 10:14 [Bug 109375] Regression: dark notebook display (no backlight) after resume bugzilla-daemon
2019-01-16 10:17 ` bugzilla-daemon
@ 2019-01-16 15:13 ` bugzilla-daemon
2019-01-16 15:44 ` bugzilla-daemon
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From: bugzilla-daemon @ 2019-01-16 15:13 UTC (permalink / raw)
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https://bugs.freedesktop.org/show_bug.cgi?id=109375
--- Comment #2 from Leo Li <sunpeng.li@amd.com> ---
Created attachment 143141
--> https://bugs.freedesktop.org/attachment.cgi?id=143141&action=edit
drm/amd/display: Detach backlight from stream
Hi Rafał,
Please give the attached patch a shot. It's in our staging branch, but not in
5.0-rc2 yet.
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* [Bug 109375] Regression: dark notebook display (no backlight) after resume
2019-01-16 10:14 [Bug 109375] Regression: dark notebook display (no backlight) after resume bugzilla-daemon
2019-01-16 10:17 ` bugzilla-daemon
2019-01-16 15:13 ` bugzilla-daemon
@ 2019-01-16 15:44 ` bugzilla-daemon
2019-01-18 20:47 ` bugzilla-daemon
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From: bugzilla-daemon @ 2019-01-16 15:44 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=109375
--- Comment #3 from Rafał Miłecki <zajec5@gmail.com> ---
It didn't apply cleanly on top of 5.0.0-rc2 (a trivial conflict in the
dc_link.c.rej). After fixing that, compiling & testing I can confirm is solves
the problem for me! Thanks!
Before suspend:
> cat /sys/class/backlight/amdgpu_bl0/{actual_brightness,brightness}
65535
255
After resume:
> cat /sys/class/backlight/amdgpu_bl0/{actual_brightness,brightness}
64000
255
As it fixes a regression, can you submit it as a fix for the 5.0 release cycle,
please?
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* [Bug 109375] Regression: dark notebook display (no backlight) after resume
2019-01-16 10:14 [Bug 109375] Regression: dark notebook display (no backlight) after resume bugzilla-daemon
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From: bugzilla-daemon @ 2019-01-18 20:47 UTC (permalink / raw)
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https://bugs.freedesktop.org/show_bug.cgi?id=109375
--- Comment #4 from Alex Deucher <alexdeucher@gmail.com> ---
Should be fixed with:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=35dad45d5cad3c9ca8d6a338cbf668cd7ea86469
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* [Bug 109375] Regression: dark notebook display (no backlight) after resume
2019-01-16 10:14 [Bug 109375] Regression: dark notebook display (no backlight) after resume bugzilla-daemon
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2019-01-18 20:47 ` bugzilla-daemon
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From: bugzilla-daemon @ 2019-01-21 14:52 UTC (permalink / raw)
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https://bugs.freedesktop.org/show_bug.cgi?id=109375
Alex Deucher <alexdeucher@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |christian.frank.uwb@googlem
| |ail.com
--- Comment #5 from Alex Deucher <alexdeucher@gmail.com> ---
*** Bug 109388 has been marked as a duplicate of this bug. ***
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* [Bug 109375] Regression: dark notebook display (no backlight) after resume
2019-01-16 10:14 [Bug 109375] Regression: dark notebook display (no backlight) after resume bugzilla-daemon
` (4 preceding siblings ...)
2019-01-21 14:52 ` bugzilla-daemon
@ 2019-02-04 5:54 ` bugzilla-daemon
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From: bugzilla-daemon @ 2019-02-04 5:54 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=109375
Rafał Miłecki <zajec5@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #6 from Rafał Miłecki <zajec5@gmail.com> ---
Fixed with the 5.0.0-rc3. Thanks!
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