My GeForce4 MX 420 didn’t work properly with OpenGL under a fresh install of Dapper Drake. Fixing it, however, proved to be really easy:

  1. Install the nvidia package:

$ apt-get install nvidia

  1. Edit /etc/X11/xorg.conf and replace the ‘driver’ where it says ’nv’ with “nvidia”:

Section “Device” Identifier “NVIDIA Corporation NV17 [GeForce4 MX 420]” #Driver “nv” Driver “nvidia” BusID “PCI:1:0:0” EndSection

  1. Kill X with control-alt-backspace

  2. Login again and test if it works by running glxgears and glxinfo on the console