#266 Funky texturing in 32 bpp

Rendering Error
MGA OpenGL (56)

Texturing in 32bpp mode randomly messes up. it seems to happen mostly with a blue texture on top of a yellow one. and it is fairly predictable where it will show up. I just put up some screenshots from Unreal Tournament at:


I'm using a G400 MAX, with DRI as of 12/15/00. kernel 2.4.0-test12. UT v.436. gcc 2.95.2


  • Nobody/Anonymous

    I'm experiencing the same trying various opengl apps. In 16bpp everything is ok, but in 32bpp blue channel of texture is messed, looks like other textures (used earlier, or vertical lines after a power-up).
    I'm using G400 MAX 32MB, DRI from dec 26 CVS, kernel 2.4.0-test 11.
    Main test program is the Haugyjobb demo by Astral:

    This bug seems to exists from the time of 4.0.2 merge.

  • Ryan T. Sammartino

    I guess I'll just add a "me too" on this one, with the following set up:

    G450 32 MB

    Linux cr467178-a 2.2.17-21mdksmp #1 SMP Thu Oct 5 13:03:01 CEST 2000 i686 unknown

    XFree86 Version 4.0.2 / X Window System
    (protocol Version 11, revision 0, vendor release 6400)
    Release Date: 18 December 2000

    Linux agpgart interface v0.99 (c) Jeff Hartmann
    agpgart: Maximum main memory to use for agp memory: 816M
    agpgart: Detected Via Apollo Pro chipset
    agpgart: AGP aperture is 64M @ 0xd0000000
    [drm] AGP 0.99 on VIA Apollo Pro @ 0xd0000000 %ZuMB
    [drm] Initialized mga 2.0.1 20000928 on minor 63

    (II) Module mga: vendor="The XFree86 Project"
    compiled for 4.0.2, module version = 1.0.0
    Module class: XFree86 Video Driver
    ABI class: XFree86 Video Driver, version 0.3

    (II) Module mga_hal: vendor="The XFree86 Project"
    compiled for 4.0.2, module version = 1.0.0
    ABI class: XFree86 Video Driver, version 0.3

    I noticed the blue textures in Open Universe...
    look at the moon from the Earth and watch the Milky Way in the background.... nice and blue :)

  • Ian Romanick

    Ian Romanick - 2003-07-01
    • labels: 101119 --> MGA OpenGL
    • assigned_to: nobody --> idr
  • Ian Romanick

    Ian Romanick - 2003-07-01

    Logged In: YES

    Have you been able to reproduce this problem with a more
    recent DRI build? There have been quite a few changes to
    texture management in the MGA driver since February of 2001.


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