[Bug 2825] New: [i740] corrupt area behind cursor when acceleration enabled at depths other than 24 on i740 rev 33

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https://bugs.freedesktop.org/show_bug.cgi?id=2825          
     
           Summary: [i740] corrupt area behind cursor when acceleration
                    enabled at depths other than 24 on i740 rev 33
           Product: xorg
           Version: CVS_head
          Platform: All
               URL: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=282080
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Driver/i740
        AssignedTo: xorg-bugzilla-noise at freedesktop.org
        ReportedBy: branden at deadbeast.net


This is Debian #282080.

The original submitter, "Rudolf Dovicin" <rudolf.dovicin at rediffmail.com>, did
quite a bit of homework.

XaaNoPixmapCache partially mitigates the problem; NoAccel completely mitigates it.

None of XaaNoCPUToScreenColorExpandFill, XaaNoScreenToScreenColorExpandFill,
XaaNoScanlineCPUToScreenColorExpandFill, or XaaNoOffcreenPixmaps appear to
mitigate it at all, and I don't know what else to recommend to the submitter.

This was filed against Debian's XFree86 4.3.0.dfsg.1-8 packages, but a quick
look at freedesktop.org CVS tells me pretty much nothing has changed in the i740
driver code since 4.3.0 was imported.          
     
     
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