[Bug 11230] New: screen looses color detail when switching to VT1 and back

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Jun 11 05:15:29 PDT 2007


           Summary: screen looses color detail when switching to VT1 and
           Product: xorg
           Version: 7.1
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: bugs.freedesktop.org at rolf.leggewie.biz
         QAContact: xorg-team at lists.x.org

My discussion about this with Alex Deucher can be found at

I have an X24 set up to use Xinerama (until now, I will change this to
MergedFB) with the internal display at 1024x768 and an external display at
1680x1050.  When I go to VT 1 and then back to X the laptops internal display
seems to be dropping to 8-bit color or something like that.  At any rate it
looses a lot of color detail.  The external display remains fine.

Alex had the following to say about this.

> > I'm not sure I've seen that before. Is it temporary during the switch
> > or permanent after you've switched back?
> It is permanent.  The external screen keeps the higher color setting
> where the internal screen looses some color detail.  Maybe it is not
> really that the X server is dropping to 8-bit after all but it sure
> looks like it is missing a lot of color detail.

I suspect one the CLUT is not being restore properly for crtc1 so the
palette is wrong.  Can you file a bug at https://bugs.freedesktop.org?

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