The xf86-video-ati driver has support for the ATI Radeon HD 4100, Radeon HD 4200, Mobility Radeon HD 4100, and Mobility Radeon HD 4200. There is also a fifth PCI ID for a yet to be named ATI RS880 chip. We should have test results soon for this new ATI Radeon IGP from both the open-source drivers as well as the Linux Catalyst driver, which should already provide full support for these new graphics processors.
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via Twitter or contacted via MichaelLarabel.com.