[Bug 76861] New: radeon: flickering horizontal stripes/lines

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Sat May 24 16:19:07 PDT 2014


            Bug ID: 76861
           Summary: radeon: flickering horizontal stripes/lines
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.15-rc6
          Hardware: i386
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: sven.dziadek at gmx.de
                CC: bugspam at moreofthesa.me.uk, deathsimple at vodafone.de
        Regression: No

Created attachment 137301
  --> https://bugzilla.kernel.org/attachment.cgi?id=137301&action=edit
Video of my monitor

Maybe duplicate of https://bugzilla.kernel.org/show_bug.cgi?id=75921

Recent DRI updates trigger a strange bug with my Radeon graphics card.
Horizontal lines flicker. These stripes/ lines start from the right edge of the
screen and have different lengths. All colors are visible. The amount of lines
depends on the speed of diplay changes. In games/ console scrolling, there is a
lot of them. If the pc is idle, I don't see any. Occurs also in tty1 on the
text console.
I appended a bad-quality video showing this issue. Sorry for the quality, but
screencast programs don't record the problem, only the picture as it should be.

With 3.15-rc1 it still works fine. In later Kernels, it is black without
>From somewhere between 3.15-rc3 and 3.15-rc4 (when the black-screen-issue is
fixed), theses stripes are visible. They are still there in latest commit:

Graphics card is onboard:
01:05.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RS880
[Radeon HD 4200] (prog-if 00 [VGA controller])
Monitor is attached over DVI.

I haven't found any errors in syslog. Tell me if you need some more info.

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