[Bug 26787] New: Radeon HD 4650 black screen at 2560x1600

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=26787

           Summary: Radeon HD 4650 black screen at 2560x1600
           Product: xorg
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: shado23 at gmail.com
         QAContact: xorg-team at lists.x.org


Using a Radeon HD 4650 with a LG W3000H screen, with either git drivers or the
ones that come with the ubuntu lucid beta, results in a black screen on boot.

When attaching a second screen and switching to a lower resolution the screen
works, switching back up again gives a black screen.
Since the card should be able to do this and it works fine with an Nvidia card
using nouveau, this leads me to believe this to be a driver bug.
I haven't tried in with the proprietary ati driver since I couldn't get it to
work.

Attached are Xorg and dmesg logs, the Xorg logs also have a Samsung screen in
them since I wouldn't have been able to switch resolutions without it.


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