[Bug 57567] New: 3.7 radeonfb broken on efivga screens

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=57567

          Priority: medium
            Bug ID: 57567
          Assignee: dri-devel at lists.freedesktop.org
           Summary: 3.7 radeonfb broken on efivga screens
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: bobahu4 at gmail.com
          Hardware: Other
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Radeon
           Product: DRI

Ubuntu 12.10
MacPro3,1

stock 3.5 kernel and 3.7-rcX ppa kernel

booting via efi with grub2

ati cards have broken framebuffer on 3.7 (all is fine on 3.5)

tried 2600xt, 6870, 6970 (all have efi part in rom, showing efi boot screen)

on 3.7, when radeonfb activates, I see for a moment two sides of screen (left
and right) swapped (not mirrored), then(when X start) only very few lines on
top of screen is actualy showing something(I can see part of mouse pointer
there), rest is filled with one color.

Same result with all cards I mentioned.

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