Certain lightmap textures are corrupted when viewed from certain angles in ut2004. As the attached screenshot shows, only the lightmap gets corrupted.
Bug 28800 may be related.
I have an rv350 and libtxc_dxtn.so is installed.
Created attachment 36927 [details]
screenshot showing texture corruption
I renamed it, because I found that not just ut2004 shows these symptoms. Other games are: nexuiz (mostly on the weapon and other players), sauerbraten (on the weapon), doom3 (on nearly all surfaces), et:qw (on most surfaces).
Created attachment 37426 [details]
Created attachment 37526 [details] [review]
Could you try this patch?
Sadly, the patch has no apparent effect.
I tried to change the texture detail and to turn detail textures on and off in ut2004, but the always same surfaces get corrupted. In the menu of doom3 the mars is corrupted only if bump mapping is not enabled (I'm not entirely sure, but it seems to me that only the clouds get corrupted).
*** This bug has been marked as a duplicate of bug 28800 ***
Please follow bug 28800 instead of this one.