From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 54662] New: [bisected] Kernel 3.6 breaks KMS on Radeon RV530 (black screen)
Date: Sat, 08 Sep 2012 06:42:16 +0000 [thread overview]
Message-ID: <bug-54662-502@http.bugs.freedesktop.org/> (raw)
https://bugs.freedesktop.org/show_bug.cgi?id=54662
Bug #: 54662
Summary: [bisected] Kernel 3.6 breaks KMS on Radeon RV530
(black screen)
Classification: Unclassified
Product: DRI
Version: unspecified
Platform: x86 (IA32)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: DRM/Radeon
AssignedTo: dri-devel@lists.freedesktop.org
ReportedBy: skitching@apache.org
Created attachment 66826
--> https://bugs.freedesktop.org/attachment.cgi?id=66826
Dmesg output from a kernel that does not show black screen problem
The following commit (merged in 3.6 rc series) makes the screen go black
immediately after Plymouth completes (ie just before greeter screen):
876dc9f32907e57e0298bcd0f1607cb7a2582f63 is the first bad commit
commit 876dc9f32907e57e0298bcd0f1607cb7a2582f63
Author: Christian König <deathsimple@vodafone.de>
Date: Tue May 8 14:24:01 2012 +0200
drm/radeon: remove radeon_fence_create
Note that this is a different bug than
https://bugs.freedesktop.org/show_bug.cgi?id=54129 (which I'm also getting) but
might be related.
The same kernel boots without problems using "nomodeset".
System is an x86-32 laptop (about 5 years old) with Radeon mobility X1600,
running Ubuntu 12.04.
lspci reports:
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI M56P
[Radeon Mobility X1600]
Attached is full dmesg output from a *different* (ie earlier, working) kernel.
Some relevant bits include:
[ 2.978637] [drm] Initialized drm 1.1.0 20060810
[ 3.052940] [drm] radeon defaulting to kernel modesetting.
[ 3.052945] [drm] radeon kernel modesetting enabled.
[ 3.053261] [drm] initializing kernel modesetting (RV530 0x1002:0x71C5
0x103C:0x30A3).
..
[ 3.245417] [drm] Loading R500 Microcode
[ 3.247401] [drm] radeon: ring at 0x0000000010001000
[ 3.247441] [drm] ring test succeeded in 9 usecs
...
[ 4.064745] [drm] Initialized radeon 2.17.0 20080528 for 0000:01:00.0 on
minor 0
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next reply other threads:[~2012-09-08 6:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-08 6:42 bugzilla-daemon [this message]
2012-09-08 15:36 ` [Bug 54662] [bisected] Kernel 3.6 breaks KMS on Radeon RV530 (black screen) bugzilla-daemon
2012-09-08 15:37 ` bugzilla-daemon
2012-09-08 15:38 ` bugzilla-daemon
2012-09-09 13:43 ` bugzilla-daemon
2012-09-11 15:52 ` bugzilla-daemon
2012-09-16 7:20 ` bugzilla-daemon
2012-10-03 10:54 ` bugzilla-daemon
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