Just downloaded sauerbraten_2006_12_04_gui_edition_linux.tar.gz and installed it. Sometime, while in game, sauer stalls (i.e. no mouse move), only Alt+SysRq+S/U/B helps me.
Bug is not present in some very old sauer release, i used before (was completely unplayable, because of low fps). 2006_12_04 has great fps on my PC :-)
Sysinfo:
- standard Linux Slackware 11.0;
- Matrox G450 32Mb DDR (get this bug with drivers: latest matrox cvs, lastest from matrox site and xorg standard).
I also must note that cube/pcube works fine as other 3D games (NWN, BZFlag). I tried recompiled by myself version of Sauer (properly installed with binaries move and rename), it not helps :-(
I experienced with C/C++, so can build debug version, or even make little debug on my PC.