[Bug 28375] New: [KMS][RV620] Lockup on PM reclock

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=28375

           Summary: [KMS][RV620] Lockup on PM reclock
           Product: DRI
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: zajec5 at gmail.com


I use today's d-r-t with my notebook.

1) Booting into init 3 and massive (50 times) switching between high and low
profile
No problems.

2) Booting into init 5 and switching to high profile
Some kind of [black screen|lockup|reclock] loop. I get black screen for second,
then corrupted and freezed display for a moment, then black screen again and so
on. Sysrq works.

3) Booting into init 5, switching to dynpm, provoking short upclocking
Black screen for a second, just WARNING or lockup detection (dmesgs attached)

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