[Bug 87291] Broken dpm for HD6670 since kernel 3.15

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87291

            Bug ID: 87291
           Summary: Broken dpm for HD6670 since kernel 3.15
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: e.edgar.frank at gmail.com

Hello there, I'd like to report that since kernel 3.15 its nearly impossible to
boot past the grub screen because post grub, during X init my monitor starts to
endlessly power down/ power on. The only way to boot is to play around with the
restart button, in arround 10 restarts, ~once I would get X to initialize
properly. The other way is to put radeon.dpm=0 in the kernel-line. This way no
errors occur, but I am left without dynamic power managemenent for the GPU.

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