[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


--- Comment #42 from Christian König <deathsimple at vodafone.de> ---
(In reply to comment #40)
> 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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