linux-kernel - Re: radeon 4830 corruption after resume

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Date:	Tue, 15 Dec 2009 10:19:49 -0500
From:	Alex Deucher <alexdeucher@...il.com>
To:	Alex Chiang <achiang@...com>
Cc:	Xiaotian Feng <xtfeng@...il.com>, rjw@...k.pl,
	Dave Airlie <airlied@...hat.com>,
	dri-devel@...ts.sourceforge.net,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: radeon 4830 corruption after resume

On Tue, Dec 15, 2009 at 9:57 AM, Alex Chiang <achiang@...com> wrote:
> * Alex Deucher <alexdeucher@...il.com>:
>>
>> As Dave asked previously, is this a regression?  I.e., did s/r work at
>> some point in the past and if so when?
>
> I'm not sure, as I just received the machine a few days ago.
>
> I can try some older kernels, but part of my issue is not knowing
> how all the pieces fit together. How can I tell if I'm supposed
> to be bisecting the kernel or X or something else, given my
> symptoms?

First try s/r without X running and see if it works ok.  Then try s/r
from a VT other than the one X is on. Finally, try s/r with the DRI
disabled (i.e., Option "DRI" "False" in the device section of your
config).  Also for non-kms s/r, you may have to fiddle with vbetool on
resume to post your card.  Report back with the results and we can go
from there.

Alex
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