[Bug 92086] AMD Trinity No screen at HDMI after S3 wakeup

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92086

            Bug ID: 92086
           Summary: AMD Trinity No screen at HDMI after S3 wakeup
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Radeon
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: vinibali at freemail.hu

Created attachment 118407
  --> https://bugs.freedesktop.org/attachment.cgi?id=118407&action=edit
trinity_wakeup.log

Dear Devs,
ive got this really annoying issue with multiple boards:
- ASRock FM2A75 Pro4
- ASRock A88M-HD+
- ASUS A78M-E
The simptome is the same in every board, but just with A8-7800K Trinity(ARUBA).
I've also tested with A10-7700K Kaveri(GCN1.1), but there was no problems at
all. So I put the PC to S3 sleep, than wake it up. The monitor which uses DVI
connector, works perfectly, but the HDMI one is mostly black,stays at sleep,
doesnt displays information(out of range, etc), but sometimes a really
flickering screen comes in for a few momements than disappears.
I hope its still a non-listed bug, I've checked multiple reports, but doesnt
find thisone. Look at the attachments, dmesg log added.
Thanks

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