fglrx_drv < radeon_drv
Issues with the ATI fglrx driver on my IBM ThinkPad T42p:
- DVI output does not work (no signal).
 - Unable to play 720p video because XVideo can’t allocate enough video memory: “BadAlloc (insufficient resources for operation)”. Disabling DRI frees up enough video memory to enable successful playback.
 - After waking up from suspend, 2D performance is very bad (scrolling in gnome-terminal and firefox stutters).
 
None of these problems occur with the open source xorg radeon driver.