* [Bug 78987] New: black screen when trying to enable external VGA screen on Trinity APU laptop
@ 2014-05-20 21:24 bugzilla-daemon
2014-05-20 21:29 ` [Bug 78987] " bugzilla-daemon
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: bugzilla-daemon @ 2014-05-20 21:24 UTC (permalink / raw
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=78987
Priority: medium
Bug ID: 78987
Assignee: dri-devel@lists.freedesktop.org
Summary: black screen when trying to enable external VGA screen
on Trinity APU laptop
Severity: major
Classification: Unclassified
OS: All
Reporter: dev@lynxeye.de
Hardware: Other
Status: NEW
Version: XOrg CVS
Component: DRM/Radeon
Product: DRI
Created attachment 99447
--> https://bugs.freedesktop.org/attachment.cgi?id=99447&action=edit
dmesg from failing machine
Plugging in an VGA monitor and trying to enable it results in black screen on
both the internal laptop display as well as the external VGA monitor.
The graphics is dead after this, I have not found any way to restore the
screen. However the machine is still responding to ssh and I was able to pick
up an quite interesting dmesg snapshot.
If you need me to test patches or need any other information, just ping me.
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^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug 78987] black screen when trying to enable external VGA screen on Trinity APU laptop
2014-05-20 21:24 [Bug 78987] New: black screen when trying to enable external VGA screen on Trinity APU laptop bugzilla-daemon
@ 2014-05-20 21:29 ` bugzilla-daemon
2014-05-21 7:28 ` bugzilla-daemon
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: bugzilla-daemon @ 2014-05-20 21:29 UTC (permalink / raw
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=78987
--- Comment #1 from Alex Deucher <agd5f@yahoo.com> ---
Please attach your xorg log and xrandr --verbose output.
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* [Bug 78987] black screen when trying to enable external VGA screen on Trinity APU laptop
2014-05-20 21:24 [Bug 78987] New: black screen when trying to enable external VGA screen on Trinity APU laptop bugzilla-daemon
2014-05-20 21:29 ` [Bug 78987] " bugzilla-daemon
@ 2014-05-21 7:28 ` bugzilla-daemon
2014-05-21 7:28 ` bugzilla-daemon
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: bugzilla-daemon @ 2014-05-21 7:28 UTC (permalink / raw
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=78987
--- Comment #2 from Lucas Stach <dev@lynxeye.de> ---
Created attachment 99473
--> https://bugs.freedesktop.org/attachment.cgi?id=99473&action=edit
Xorg.0.log
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* [Bug 78987] black screen when trying to enable external VGA screen on Trinity APU laptop
2014-05-20 21:24 [Bug 78987] New: black screen when trying to enable external VGA screen on Trinity APU laptop bugzilla-daemon
2014-05-20 21:29 ` [Bug 78987] " bugzilla-daemon
2014-05-21 7:28 ` bugzilla-daemon
@ 2014-05-21 7:28 ` bugzilla-daemon
2014-05-21 7:29 ` bugzilla-daemon
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: bugzilla-daemon @ 2014-05-21 7:28 UTC (permalink / raw
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=78987
--- Comment #3 from Lucas Stach <dev@lynxeye.de> ---
Created attachment 99474
--> https://bugs.freedesktop.org/attachment.cgi?id=99474&action=edit
xrandr before failure
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* [Bug 78987] black screen when trying to enable external VGA screen on Trinity APU laptop
2014-05-20 21:24 [Bug 78987] New: black screen when trying to enable external VGA screen on Trinity APU laptop bugzilla-daemon
` (2 preceding siblings ...)
2014-05-21 7:28 ` bugzilla-daemon
@ 2014-05-21 7:29 ` bugzilla-daemon
2014-05-21 7:30 ` bugzilla-daemon
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: bugzilla-daemon @ 2014-05-21 7:29 UTC (permalink / raw
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=78987
--- Comment #4 from Lucas Stach <dev@lynxeye.de> ---
Created attachment 99475
--> https://bugs.freedesktop.org/attachment.cgi?id=99475&action=edit
xrandr after failure
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* [Bug 78987] black screen when trying to enable external VGA screen on Trinity APU laptop
2014-05-20 21:24 [Bug 78987] New: black screen when trying to enable external VGA screen on Trinity APU laptop bugzilla-daemon
` (3 preceding siblings ...)
2014-05-21 7:29 ` bugzilla-daemon
@ 2014-05-21 7:30 ` bugzilla-daemon
2016-01-07 20:17 ` bugzilla-daemon
2016-06-19 12:36 ` bugzilla-daemon
6 siblings, 0 replies; 8+ messages in thread
From: bugzilla-daemon @ 2014-05-21 7:30 UTC (permalink / raw
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=78987
--- Comment #5 from Lucas Stach <dev@lynxeye.de> ---
I attached two xrandr outputs as running xrandr already triggers the problem.
So one log before and after the failure happened.
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^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug 78987] black screen when trying to enable external VGA screen on Trinity APU laptop
2014-05-20 21:24 [Bug 78987] New: black screen when trying to enable external VGA screen on Trinity APU laptop bugzilla-daemon
` (4 preceding siblings ...)
2014-05-21 7:30 ` bugzilla-daemon
@ 2016-01-07 20:17 ` bugzilla-daemon
2016-06-19 12:36 ` bugzilla-daemon
6 siblings, 0 replies; 8+ messages in thread
From: bugzilla-daemon @ 2016-01-07 20:17 UTC (permalink / raw
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=78987
--- Comment #6 from Lucas Stach <dev@lynxeye.de> ---
Coming back to this after a long time. Meanwhile the APU is a Richland based
chip in the same laptop chassis. Behaviour stays the same.
What I found out is that VGA lights up if it is connected at boot up, but when
GDM tries to switch modes the ATOMBIOS hang is encountered again. So it seems
like disabling the encoder does not work properly and it's not coming back to
life when trying to enable it again. I've tried to disable various parts of the
encoder disable sequence, but didn't find anything that would make a
difference.
I would be very glad if someone with some more clue about this than me could
take a look at this. Do you need any more traces/registerdumps/infos?
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^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug 78987] black screen when trying to enable external VGA screen on Trinity APU laptop
2014-05-20 21:24 [Bug 78987] New: black screen when trying to enable external VGA screen on Trinity APU laptop bugzilla-daemon
` (5 preceding siblings ...)
2016-01-07 20:17 ` bugzilla-daemon
@ 2016-06-19 12:36 ` bugzilla-daemon
6 siblings, 0 replies; 8+ messages in thread
From: bugzilla-daemon @ 2016-06-19 12:36 UTC (permalink / raw
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=78987
Lucas Stach <dev@lynxeye.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
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