If you are hving problems with the video driver for X, check here, it might help:
I think the video card is integrated in the processor - its a National Semiconductor Geode, which used to belong to Cyrix called the mediaGX - sound and video were embedded in the processor.
The is a driver for X86
cyrix is an XFree86 driver for the Cyrix MediaGX (now Natsemi Geode) series of processors when using the built in video.
The cyrix driver supports the MediaGX, MediaGXi and MediaGXm processors, as well as the Natsemi 'Geode' branded processors. It supports the CS5510, CS5520, CS5530 and CS5530A companion chips. The driver supports 4, 8, 15 and 16 bit deep displays with video compression and acceleration.
The MediaGX run length compresses its shared framebuffer, for the best performance on a MediaGX machine pick backgrounds that compress well horizonally.
Please refer to XF86Config(5) for general configuration details. This section only covers configuration details specific to this driver.