Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.
With the fglrx 8.39.4 driver (or newer), there's a chance you may run into a watermark (similar to the AMD testing watermark) saying that your hardware is unsupported when in fact it is supported. If you run into this unsupported hardware watermark, it's likely that /etc/ati/control is missing. If that's the case for you, try reinstalling the driver or manually copying the control file. The driver contents can be extracted using the --extract argument and the control file is located in common/etc/ati/. If you experience this problem, create a thread in the Phoronix Forums with what distribution you are using and how you had installed the driver initially (and whether adding the control file had removed the watermark).