From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 16140] Suspend To RAM/ Resume broken - Radeon KMS on RV250
Date: Thu, 7 Oct 2010 22:31:31 GMT
Message-ID: <201010072231.o97MVVkC011213@demeter1.kernel.org>
References: <bug-16140-2300@https.bugzilla.kernel.org/>
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https://bugzilla.kernel.org/show_bug.cgi?id=16140





--- Comment #21 from Florian Mickler <florian@mickler.org>  2010-10-07 22:31:27 ---
Created an attachment (id=32762)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=32762)
debug patch to see where we fail to set up the ring

You have this in you kern.log file:
[drm] radeon: ring at 0x00000000D0000000

which doesnt't look so good. 
>>From there on it goes bad:

Sep 17 13:12:12 tbox kernel: [  381.304184] [drm:r100_ring_test] *ERROR*
radeon: ring test failed (sracth(0x15E4)=0xCAFEDEAD)
Sep 17 13:12:12 tbox kernel: [  381.304187] [drm:r100_cp_init] *ERROR* radeon:
cp isn't working (-22).
Sep 17 13:12:12 tbox kernel: [  381.304191] radeon 0000:01:00.0: failled
initializing CP (-22).

which explains the 
"[drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(0)." message. 

cp.ready is false, due to r100_cp_init failing.

Let's see if we can narrow down what fails. Can you apply this patch and post
the resulting kern.log?

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