A short and yet incomplete manufacturer survey of graphics chipsets used in mobile computers.
ATI provides a Linux FAQ(http://www.ati.com/support/faq/linux.html). There is also a mailing list(http://alexandria11.alexsrv11.com/mailman/listinfo/ati-mobililty-linux_staticnull.org) for ATI Mobility Users. Please join the list if you have a laptop with an ATI Mobility Radeon graphics chipset.
"...a developer's kit to support video hardware decoding for Linux on their Rage 128 and Rage 128 Pro chips. ...confirms ATI's pursuit to become 'the Linux community's Number One graphics vendor'." COMPLETE STORY(http://news.tucows.com/ext2/00/03/articles/ext203022000.shtml).
ATI Radeon Linux How-To(http://www.rage3d.com/content/articles/atilinuxhowto/).