Matrox G400 Max/Hansol 900P
Running "Xconfigurator --preferfx4". I choose 1240x1024 24bit, and
1240x1024 800x600 640x480 16bit (need 16bit for quakeIII). I don't choose
anything under 8bit at all, but 1600x1200 comes up, and 8bit is set as
fixed in 4.6.4 and later.