[Bug 34534] resolution 3840x1024 stopped to work on HD5850 after switch to 2.6.37 kernel

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=34534

--- Comment #10 from Alex Deucher <agd5f at yahoo.com> 2011-04-08 10:58:38 PDT ---
(In reply to comment #9)
> As for as the registers for crtc 1:
> 
> Just before the watermark commit - the good case (and it is the same as
> 2.6.36.3):
> 0x0c00  0x00030002 (196610)
> 0x0c04  0x00000000 (0)
> 0x7718  0x00000000 (0)
> 0x771c  0x00000000 (0)
> 0x770c  0x00020004 (131076)
> 
> Just at the watermark commit - the bad case:
> 0x0c00    0x00030002 (196610)
> 0x0c04    0x2e985963 (781736291)
> 0x7718    0x00000024 (36)
> 0x771c    0x00000024 (36)
> 0x770c    0x00010005 (65541)

does:
radeonreg regset 0x770c 0x00020004
fix the broken state?  If not, try replacing the other values with the working
versions to narrow down which ones are problematic or if they all need to be
changed.

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