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From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 56139] New: [bisected] kernel 3.7.0-rc1 breaks 6950 (CAYMAN)
Date: Thu, 18 Oct 2012 13:48:51 +0000	[thread overview]
Message-ID: <bug-56139-502@http.bugs.freedesktop.org/> (raw)


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https://bugs.freedesktop.org/show_bug.cgi?id=56139

          Priority: medium
            Bug ID: 56139
          Assignee: dri-devel@lists.freedesktop.org
           Summary: [bisected] kernel 3.7.0-rc1 breaks 6950 (CAYMAN)
          Severity: major
    Classification: Unclassified
                OS: All
          Reporter: alexandre.f.demers@gmail.com
          Hardware: All
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Radeon
           Product: DRI

Using ArchLinux 64, own built kernel (vanilla) with an HD 6950 (CAYMAN).

When testing kernel 3.7-rc1, the screen becomes unreadable. It's either
completely black or in a flickering state making the display unusable. It is
very similar to what was observed in bug 43655.

At the time of bug 43655, the problem had been fixed by
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=81ee8fb6b52ec69eeed37fe7943446af1dccecc5.
So it was working OK with kernel 3.6.

I've bisected between kernel 3.6 and 3.7-rc1 and the faulty identified commit
is the following:
62444b7462a2b98bc78d68736c03a7c4e66ba7e2 is the first bad commit
commit 62444b7462a2b98bc78d68736c03a7c4e66ba7e2
Author: Alex Deucher <alexander.deucher@amd.com>
Date:   Wed Aug 15 17:18:42 2012 -0400

    drm/radeon: properly handle mc_stop/mc_resume on evergreen+ (v2)

    - Stop the displays from accessing the FB
    - Block CPU access
    - Turn off MC client access

    This should fix issues some users have seen, especially
    with UEFI, when changing the MC FB location that result
    in hangs or display corruption.

    v2: fix crtc enabled check noticed by Luca Tettamanti

    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

:040000 040000 3e0d33c9b4eda29ced814fe9a863efe63e53f14c
4932561607b160734ec1eade927a9fe18c9f3f1b M    drivers

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             reply	other threads:[~2012-10-18 13:48 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-18 13:48 bugzilla-daemon [this message]
2012-10-18 13:51 ` [Bug 56139] [bisected] kernel 3.7.0-rc1 breaks 6950 (CAYMAN) bugzilla-daemon
2012-10-18 14:16 ` bugzilla-daemon
2012-10-18 23:46 ` bugzilla-daemon
2012-10-22  5:57 ` bugzilla-daemon
2012-10-26  3:17 ` bugzilla-daemon
2012-10-26 14:08 ` bugzilla-daemon
2012-10-27  4:51 ` bugzilla-daemon
2012-10-31 18:29 ` bugzilla-daemon
2012-10-31 19:13 ` bugzilla-daemon
2012-11-01  0:38 ` bugzilla-daemon
2012-11-01  5:30 ` bugzilla-daemon
2012-11-05  6:58 ` bugzilla-daemon
2012-11-05 14:03 ` bugzilla-daemon
2012-11-05 14:28 ` bugzilla-daemon
2012-11-05 14:55 ` bugzilla-daemon
2012-11-05 16:20 ` bugzilla-daemon
2012-11-05 16:34 ` bugzilla-daemon
2012-11-05 22:46 ` bugzilla-daemon
2012-11-06  0:33 ` bugzilla-daemon
2012-11-06  1:02 ` bugzilla-daemon
2012-11-06 22:32 ` bugzilla-daemon
2012-11-06 22:50 ` bugzilla-daemon
2012-11-06 22:55 ` bugzilla-daemon
2012-11-06 22:56 ` bugzilla-daemon
2012-11-06 22:59 ` bugzilla-daemon
2012-11-11 18:55 ` bugzilla-daemon
2013-04-17  9:11   ` Huacai Chen
2012-11-12  4:04 ` [Bug 56139] [bisected] kernel 3.7.0-rc1 breaks 6950 (boot/grub2 and suspend/resume) (CAYMAN) bugzilla-daemon
2012-11-12  4:27 ` bugzilla-daemon
2012-11-12  5:32 ` bugzilla-daemon
2012-11-12 23:31 ` bugzilla-daemon
2012-11-13 15:15 ` bugzilla-daemon
2012-11-13 15:45 ` bugzilla-daemon
2012-11-14 16:14 ` bugzilla-daemon
2012-11-18 17:05 ` bugzilla-daemon
2012-11-18 19:04 ` bugzilla-daemon
2012-11-18 19:40 ` bugzilla-daemon
2012-11-18 19:41 ` bugzilla-daemon
2012-11-19 14:05 ` bugzilla-daemon
2012-11-19 14:18 ` bugzilla-daemon
2012-11-19 14:19 ` bugzilla-daemon
2012-11-19 23:31 ` bugzilla-daemon
2012-11-20  6:08 ` bugzilla-daemon
2012-11-20 15:23 ` bugzilla-daemon
2012-11-28  6:44 ` bugzilla-daemon
2012-11-28 14:29 ` bugzilla-daemon
2012-11-28 17:08 ` bugzilla-daemon
2013-01-05  5:57 ` bugzilla-daemon
2013-01-31  0:52 ` bugzilla-daemon
2013-01-31 13:35 ` bugzilla-daemon
2013-02-20  5:34 ` bugzilla-daemon
2013-02-23 10:28 ` bugzilla-daemon
2013-02-24  3:21 ` bugzilla-daemon
2013-02-25  1:56 ` bugzilla-daemon
2013-02-25 13:57 ` bugzilla-daemon
2013-03-11  4:41 ` bugzilla-daemon
2013-03-11  4:51 ` bugzilla-daemon
2013-03-11 13:38 ` bugzilla-daemon

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