[Bug 99323] New: White horizontal lines and graphics curruption in ATI HD 4570 when radeon.dpm=1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99323

            Bug ID: 99323
           Summary: White horizontal lines and graphics curruption in ATI
                    HD 4570 when radeon.dpm=1
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Driver/Radeon
          Assignee: xorg-driver-ati at lists.x.org
          Reporter: kapoorkkartik at gmail.com
        QA Contact: xorg-team at lists.x.org

Hi have ATI Radeon 4570 card and random white lines come all over the screen.
This problem began when i upgraded from Kernel 3.13 on linux mint and no matter
what distribution i installed (Kernel 3.16, 3.16, 4.4, 4.9) the problem
remained. Finally set radeon.dpm=0 and the problem is gone. Would like to get
this resolved. Please let me know which files to attach.

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