* [Bug 108693] black screen with "drm/amd/display: Do not limit color depth to 8bpc" e03fd3f300f6184c1264186a4c815e93bf658abb >=4.18
@ 2018-11-08 10:59 bugzilla-daemon
2018-11-08 18:52 ` bugzilla-daemon
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: bugzilla-daemon @ 2018-11-08 10:59 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=108693
Bug ID: 108693
Summary: black screen with "drm/amd/display: Do not limit color
depth to 8bpc"
e03fd3f300f6184c1264186a4c815e93bf658abb >=4.18
Product: DRI
Version: XOrg git
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: major
Priority: medium
Component: DRM/AMDgpu
Assignee: dri-devel@lists.freedesktop.org
Reporter: andrey.arapov@nixaid.com
Hello,
some of the MacBookPro 14,3 users have been struggling with the black screen
issue on their systems, I have been bisecting the kernel commits that came to
v4.18-rc1 and found that the problem is gone when I revert this commit
"drm/amd/display: Do not limit color depth to 8bpc"
e03fd3f300f6184c1264186a4c815e93bf658abb
I presume that the driver cannot get the display_info.bpc from the screen so it
defaults to COLOR_DEPTH_UNDEFINED causing the black screen.
Please let me know,
https://github.com/torvalds/linux/commit/e03fd3f300f6184c1264186a4c815e93bf658abb
Followed-by
https://github.com/Dunedan/mbp-2016-linux/issues/73#issuecomment-422397681
Kind Regards,
Andrey Arapov
P.S. I have been sending an email to Harry Wentland & Alex Deucher on 18 Sept.
2018, but no response followed.
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug 108693] black screen with "drm/amd/display: Do not limit color depth to 8bpc" e03fd3f300f6184c1264186a4c815e93bf658abb >=4.18
2018-11-08 10:59 [Bug 108693] black screen with "drm/amd/display: Do not limit color depth to 8bpc" e03fd3f300f6184c1264186a4c815e93bf658abb >=4.18 bugzilla-daemon
@ 2018-11-08 18:52 ` bugzilla-daemon
2018-11-08 19:27 ` bugzilla-daemon
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2018-11-08 18:52 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=108693
--- Comment #1 from Ronny Standtke <ronny.standtke@gmx.net> ---
I can confirm the bug. We provide an exam environment based on Debian Live.
Since we switched to Kernel 4.18 (provided in Debian backports) we have seen
*many* Macs failing to boot and just showing a black screen. So at least for us
this regression is quite severe...
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug 108693] black screen with "drm/amd/display: Do not limit color depth to 8bpc" e03fd3f300f6184c1264186a4c815e93bf658abb >=4.18
2018-11-08 10:59 [Bug 108693] black screen with "drm/amd/display: Do not limit color depth to 8bpc" e03fd3f300f6184c1264186a4c815e93bf658abb >=4.18 bugzilla-daemon
2018-11-08 18:52 ` bugzilla-daemon
@ 2018-11-08 19:27 ` bugzilla-daemon
2018-11-20 12:45 ` bugzilla-daemon
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2018-11-08 19:27 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=108693
--- Comment #2 from Alex Deucher <alexdeucher@gmail.com> ---
This patchset may help:
https://patchwork.freedesktop.org/series/52164/
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug 108693] black screen with "drm/amd/display: Do not limit color depth to 8bpc" e03fd3f300f6184c1264186a4c815e93bf658abb >=4.18
2018-11-08 10:59 [Bug 108693] black screen with "drm/amd/display: Do not limit color depth to 8bpc" e03fd3f300f6184c1264186a4c815e93bf658abb >=4.18 bugzilla-daemon
2018-11-08 18:52 ` bugzilla-daemon
2018-11-08 19:27 ` bugzilla-daemon
@ 2018-11-20 12:45 ` bugzilla-daemon
2018-11-20 15:31 ` bugzilla-daemon
2019-11-19 9:03 ` bugzilla-daemon
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2018-11-20 12:45 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=108693
--- Comment #3 from Andrey Arapov <andrey.arapov@nixaid.com> ---
(In reply to Alex Deucher from comment #2)
> This patchset may help:
> https://patchwork.freedesktop.org/series/52164/
Thank you, Alex.
I can confirm, the patches worked for me.
I have adapted them for Linux 4.19.2 -
https://gist.github.com/arno01/8115ef124fe7f42bbf1c317892013e86
Any plans for including them in the next Linux release?
Kind Regards,
Andrey Arapov
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug 108693] black screen with "drm/amd/display: Do not limit color depth to 8bpc" e03fd3f300f6184c1264186a4c815e93bf658abb >=4.18
2018-11-08 10:59 [Bug 108693] black screen with "drm/amd/display: Do not limit color depth to 8bpc" e03fd3f300f6184c1264186a4c815e93bf658abb >=4.18 bugzilla-daemon
` (2 preceding siblings ...)
2018-11-20 12:45 ` bugzilla-daemon
@ 2018-11-20 15:31 ` bugzilla-daemon
2019-11-19 9:03 ` bugzilla-daemon
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2018-11-20 15:31 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=108693
--- Comment #4 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to Andrey Arapov from comment #3)
> (In reply to Alex Deucher from comment #2)
> > This patchset may help:
> > https://patchwork.freedesktop.org/series/52164/
>
> Thank you, Alex.
>
> I can confirm, the patches worked for me.
> I have adapted them for Linux 4.19.2 -
> https://gist.github.com/arno01/8115ef124fe7f42bbf1c317892013e86
>
>
> Any plans for including them in the next Linux release?
yes. They should land in 4.20 soon.
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug 108693] black screen with "drm/amd/display: Do not limit color depth to 8bpc" e03fd3f300f6184c1264186a4c815e93bf658abb >=4.18
2018-11-08 10:59 [Bug 108693] black screen with "drm/amd/display: Do not limit color depth to 8bpc" e03fd3f300f6184c1264186a4c815e93bf658abb >=4.18 bugzilla-daemon
` (3 preceding siblings ...)
2018-11-20 15:31 ` bugzilla-daemon
@ 2019-11-19 9:03 ` bugzilla-daemon
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2019-11-19 9:03 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=108693
Martin Peres <martin.peres@free.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |MOVED
--- Comment #5 from Martin Peres <martin.peres@free.fr> ---
-- GitLab Migration Automatic Message --
This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.
You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/602.
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2018-11-08 10:59 [Bug 108693] black screen with "drm/amd/display: Do not limit color depth to 8bpc" e03fd3f300f6184c1264186a4c815e93bf658abb >=4.18 bugzilla-daemon
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