[Bug 51190] [RADEON:KMS:RV370:RESUME] garbage on screen (console or X) after suspend-resume with radeon (KMS only)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=51190

--- Comment #8 from cyberbat <cyberbat at lavabit.com> 2012-06-20 11:00:28 PDT ---
I got following in dmesg after restoring after mem > /sys/power/state:

radeon 0000:01:00.0: restoring config space at offset 0xf (was 0x1ff, writing
0x10a)
radeon 0000:01:00.0: restoring config space at offset 0x6 (was 0x0, writing
0xc0100000)
radeon 0000:01:00.0: restoring config space at offset 0x4 (was 0x8, writing
0xd0000008)
radeon 0000:01:00.0: restoring config space at offset 0x3 (was 0x0, writing
0x8)
radeon 0000:01:00.0: restoring config space at offset 0x1 (was 0x100107,
writing 0x100507)

...

[drm] PCIE GART of 512M enabled (table at 0x00000000D0040000).
radeon 0000:01:00.0: WB enabled
[drm] radeon: ring at 0x00000000B0001000
[drm:r100_ring_test] *ERROR* radeon: ring test failed
(scratch(0x15E4)=0xCAFEDEAD)
[drm:r100_cp_init] *ERROR* radeon: cp isn't working (-22).
radeon 0000:01:00.0: failed initializing CP (-22).

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