[Bug 716] New: MGA: text sometimes rendered unreadably if texturing on.

[<bug...@pd...>]

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http://freedesktop.org/bugzilla/show_bug.cgi?id=716   
   
           Summary: MGA:  text sometimes rendered unreadably if texturing
                    on.
           Product: DRI
           Version: DRI CVS
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: minor
          Priority: P2
         Component: General
        AssignedTo: dri...@li...
        ReportedBy: cme...@sp...


DESCRIPTION OF BUG:
Using MGA DRI CVS snapshot dated 20040527, text in bzflag is
rendered incorrectly as long as texturing is turned on from
within the app.  Turning off textures from within the app
causes text to be rendered correctly.  This bug is *not*
present in the DRI accompanying XFree86 4.3 (Debian); it
appeared upon updating to the DRI CVS snapshot.


REPRODUCING THE BUG:
1.  Have a Matrox G550.
2.  Install a recent DRI CVS snapshot (mga, common, XFree86 server).
3.  Run bzflag.  Make sure "Texturing" isn't set to "Off" on the
Options screen.  The several lines of initialization text at the
bottom of the screen will be unreadable.
4.  Select "Options" from the menu.  The options text will be
readable, but messed-up.
5.  Select "Off" as the "Texturing" option.  All text, in the
options selection area plus in the update box below, will
suddenly become easily readable.

I have screenshots available showing the mucked up text if they'd
be helpful.


PLATFORM:
Matrox G550 on a Via KT333 board (Asus A7V333).  Linux 2.4.23
kernel.


ADDITIONAL INFO:
I don't know whether the problem exists in other OpenGL applications.
I haven't seen it in FlightGear or TuxRacer.  But I do know the problem
didn't exist until installing the DRI CVS snapshot.   
   
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