* [Bug 44955] New: Screen flickers after LVDS turned off and back on with MacBook Pro 8,2 (Radeon HD 6600M)
@ 2012-01-19 20:22 bugzilla-daemon
2012-01-19 20:22 ` [Bug 44955] " bugzilla-daemon
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From: bugzilla-daemon @ 2012-01-19 20:22 UTC (permalink / raw)
To: dri-devel
https://bugs.freedesktop.org/show_bug.cgi?id=44955
Bug #: 44955
Summary: Screen flickers after LVDS turned off and back on with
MacBook Pro 8,2 (Radeon HD 6600M)
Classification: Unclassified
Product: DRI
Version: unspecified
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: DRM/Radeon
AssignedTo: dri-devel@lists.freedesktop.org
ReportedBy: seth.forshee@canonical.com
Created attachment 55810
--> https://bugs.freedesktop.org/attachment.cgi?id=55810
dmesg output
When the LVDS panel is turned on after being off the screen flickers as if the
backlight is quickly alternating between low and high brightness values. The
flickering gradually fades until it is no longer noticeable. The graphics card
is:
ATI Technologies Inc Whistler [AMD Radeon HD 6600M Series] [1002:6741]
Other than LVDS this machine has a Thunderbolt/MiniDP connector. demsg output
and vbios are attached.
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* [Bug 44955] Screen flickers after LVDS turned off and back on with MacBook Pro 8,2 (Radeon HD 6600M)
2012-01-19 20:22 [Bug 44955] New: Screen flickers after LVDS turned off and back on with MacBook Pro 8,2 (Radeon HD 6600M) bugzilla-daemon
@ 2012-01-19 20:22 ` bugzilla-daemon
2012-01-19 21:02 ` bugzilla-daemon
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2012-01-19 20:22 UTC (permalink / raw)
To: dri-devel
https://bugs.freedesktop.org/show_bug.cgi?id=44955
--- Comment #1 from Seth Forshee <seth.forshee@canonical.com> 2012-01-19 12:22:43 PST ---
Created attachment 55811
--> https://bugs.freedesktop.org/attachment.cgi?id=55811
vbios
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* [Bug 44955] Screen flickers after LVDS turned off and back on with MacBook Pro 8,2 (Radeon HD 6600M)
2012-01-19 20:22 [Bug 44955] New: Screen flickers after LVDS turned off and back on with MacBook Pro 8,2 (Radeon HD 6600M) bugzilla-daemon
2012-01-19 20:22 ` [Bug 44955] " bugzilla-daemon
@ 2012-01-19 21:02 ` bugzilla-daemon
2012-01-20 2:11 ` bugzilla-daemon
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2012-01-19 21:02 UTC (permalink / raw)
To: dri-devel
https://bugs.freedesktop.org/show_bug.cgi?id=44955
--- Comment #2 from Alex Deucher <agd5f@yahoo.com> 2012-01-19 13:02:49 PST ---
Do these patches help?
http://people.freedesktop.org/~agd5f/dce_fixes/
They are against drm-next or Linus' tree.
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* [Bug 44955] Screen flickers after LVDS turned off and back on with MacBook Pro 8,2 (Radeon HD 6600M)
2012-01-19 20:22 [Bug 44955] New: Screen flickers after LVDS turned off and back on with MacBook Pro 8,2 (Radeon HD 6600M) bugzilla-daemon
2012-01-19 20:22 ` [Bug 44955] " bugzilla-daemon
2012-01-19 21:02 ` bugzilla-daemon
@ 2012-01-20 2:11 ` bugzilla-daemon
2012-02-01 21:14 ` bugzilla-daemon
2012-02-01 21:35 ` bugzilla-daemon
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2012-01-20 2:11 UTC (permalink / raw)
To: dri-devel
https://bugs.freedesktop.org/show_bug.cgi?id=44955
--- Comment #3 from Seth Forshee <seth.forshee@canonical.com> 2012-01-19 18:11:28 PST ---
(In reply to comment #2)
> Do these patches help?
> http://people.freedesktop.org/~agd5f/dce_fixes/
> They are against drm-next or Linus' tree.
Yes, those patches eliminate the flicker.
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* [Bug 44955] Screen flickers after LVDS turned off and back on with MacBook Pro 8,2 (Radeon HD 6600M)
2012-01-19 20:22 [Bug 44955] New: Screen flickers after LVDS turned off and back on with MacBook Pro 8,2 (Radeon HD 6600M) bugzilla-daemon
` (2 preceding siblings ...)
2012-01-20 2:11 ` bugzilla-daemon
@ 2012-02-01 21:14 ` bugzilla-daemon
2012-02-01 21:35 ` bugzilla-daemon
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2012-02-01 21:14 UTC (permalink / raw)
To: dri-devel
https://bugs.freedesktop.org/show_bug.cgi?id=44955
--- Comment #4 from Florian Mickler <florian@mickler.org> 2012-02-01 13:14:20 PST ---
A patch referencing this bug report has been merged in Linux v3.3-rc2:
commit 3a47824d85eeca122895646f027dc63480994199
Author: Alex Deucher <alexander.deucher@amd.com>
Date: Fri Jan 20 15:01:30 2012 -0500
drm/radeon/kms: rework modeset sequence for DCE41 and DCE5
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* [Bug 44955] Screen flickers after LVDS turned off and back on with MacBook Pro 8,2 (Radeon HD 6600M)
2012-01-19 20:22 [Bug 44955] New: Screen flickers after LVDS turned off and back on with MacBook Pro 8,2 (Radeon HD 6600M) bugzilla-daemon
` (3 preceding siblings ...)
2012-02-01 21:14 ` bugzilla-daemon
@ 2012-02-01 21:35 ` bugzilla-daemon
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2012-02-01 21:35 UTC (permalink / raw)
To: dri-devel
https://bugs.freedesktop.org/show_bug.cgi?id=44955
Seth Forshee <seth.forshee@canonical.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
--- Comment #5 from Seth Forshee <seth.forshee@canonical.com> 2012-02-01 13:35:53 PST ---
(In reply to comment #4)
> A patch referencing this bug report has been merged in Linux v3.3-rc2:
>
> commit 3a47824d85eeca122895646f027dc63480994199
> Author: Alex Deucher <alexander.deucher@amd.com>
> Date: Fri Jan 20 15:01:30 2012 -0500
>
> drm/radeon/kms: rework modeset sequence for DCE41 and DCE5
I can confirm that the problem no longer exists in v3.3-rc2. Closing.
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