[Bug 66940] New: Mobility Radeon HD 5650 doesn't resume from suspend on kernel 3.11 (linus and drm_next)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=66940

          Priority: medium
            Bug ID: 66940
          Assignee: dri-devel at lists.freedesktop.org
           Summary: Mobility Radeon HD 5650 doesn't resume from suspend on
                    kernel 3.11 (linus and drm_next)
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: mail at 3v1n0.net
          Hardware: Other
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Radeon
           Product: DRI

Created attachment 82459
  --> https://bugs.freedesktop.org/attachment.cgi?id=82459&action=edit
dmesg

I've tried running linux 3.11 from both linus and drm_next branches, but when
using the radeon drivers it's impossible to resume from suspension.

It's quite sure that the problem is in radeon module, because unloading it (and
switching to my intel card with vgaswitcheroo) works fine.
Also, enabling the pm_trace sys-node it highlights that the radeon device
caused the freeze:

from dmesg:
[    1.286810]   Magic number: 0:660:725
[    1.286815]   hash matches
/home/marco/Dev/debs/linux/drivers/base/power/main.c:575
[    1.286829] block loop5: hash matches
[    1.286867] pci 0000:01:00.0: hash matches

               ^ This is the PCI id of my radeon card

cat /sys/power/pm_trace_dev_match:
block
radeon


This is a regression, since linux 3.10 works well.

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