[vgmuseum@Arcadia ~]$ glxgears
Failed to initialize TTM buffer manager.  Falling back to classic.
2910 frames in 5.0 seconds = 581.850 FPS
[vgmuseum@Arcadia ~]$ glxgears
Failed to initialize TTM buffer manager.  Falling back to classic.
2875 frames in 5.0 seconds = 574.855 FPS
[vgmuseum@Arcadia ~]$ xrandr --output TV --mode 640x480
[vgmuseum@Arcadia ~]$ glxgears
Failed to initialize TTM buffer manager.  Falling back to classic.
2886 frames in 5.0 seconds = 577.092 FPS
[vgmuseum@Arcadia ~]$ glxgears
Failed to initialize TTM buffer manager.  Falling back to classic.
2890 frames in 5.0 seconds = 577.831 FPS
[vgmuseum@Arcadia ~]$ xrandr --output TV --mode 1024x768
[vgmuseum@Arcadia ~]$ glxgears
Failed to initialize TTM buffer manager.  Falling back to classic.
Killed
[vgmuseum@Arcadia ~]$ xrandr --output TV --mode 640x480
[vgmuseum@Arcadia ~]$ glxgears
Failed to initialize TTM buffer manager.  Falling back to classic.
Killed