How I got a Toshiba with Radeon Xpress 200M to work on Ubuntu 9.04

My Toshiba L30-149 just presented garbage on screen after an upgrade from 8.04 to 8.10. It persisted in doing so when I continued the upgrade to 9.04. I used the below guide. The proprietary fglrx driver was replaced and after that I stopped getting garbage on screen and instead got a login screen.

This guide will show you how to use the Free, Open Source driver for many ATI graphics cards called "radeon" or "ati". It will provide 2D and 3D acceleration in your video hardware. This driver is not as fast as the closed-source, proprietary "fglrx" driver from AMD/ATI Inc. for some cards, but has better dual-head support, and supports some older chipsets that fglrx does not.

Läs mer: The open source ATI driver (xserver-xorg-video-ati) - Community Ubuntu Documentation