[Bug 55692] [KMS][Cayman] Garbled screen and oops with 6950 with linus git from 20121006 (3.7-rc0)
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Thu Oct 18 01:40:19 PDT 2012
https://bugs.freedesktop.org/show_bug.cgi?id=55692
--- Comment #42 from Christian König <deathsimple at vodafone.de> ---
(In reply to comment #40)
[SNIP]
> kernel bisected. Here is the culprit commit from what I see here:
> 62444b7462a2b98bc78d68736c03a7c4e66ba7e2 is the first bad commit
> commit 62444b7462a2b98bc78d68736c03a7c4e66ba7e2
> Author: Alex Deucher <alexander.deucher at 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 at amd.com>
>
> :040000 040000 3e0d33c9b4eda29ced814fe9a863efe63e53f14c
> 4932561607b160734ec1eade927a9fe18c9f3f1b M drivers
>
> So it may not be the same bug I'm hitting as Serkan is. Where should I track
> this faulty commit/bug? In the NI CAICOS bug or in a new one?
That indeed looks like a separate bug to me, so I suggest to open up a new bug.
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