[Bug 76559] New: screen corruption after going from VT to X

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76559

          Priority: medium
            Bug ID: 76559
          Assignee: dri-devel at lists.freedesktop.org
           Summary: screen corruption after going from VT to X
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: fabio.ped at libero.it
          Hardware: x86 (IA32)
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Radeon
           Product: DRI

I have a MacBook Pro with a RV530 with an external Philips 22" monitor
connected (the notebook screen is disabled in X). After switching to VT and
then coming back to X the screen is corrupted (like if every odd line has an
offset). The same happens after suspend. A screenshot doesn't show the problem.
I then usually change resolution with the Ubuntu tool (selecting a different
resolution and then reapplying the previous one) and that restore the screen.

Attached dmesg and Xorg log after the X -> VT -> X cycle.

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