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.
Committed to the RadeonHD driver tree today is a new utility for testing the status of connectors on R500 and R600 graphics cards. This utility is called conntest and inside the xf86-video-radeonhd branch it is found inside utils/conntest. With root privileges, to execute conntest just run it with the PCI tag argument when your monitor(s) is connected to the different video output ports. Conntest should help the RadeonHD developers in working out the connection issues for the R500 and R600 GPUs due to four different outputs (DACA, DACB, TMDSA and LVTMA). Check out the RadeonHD driver's git code for the latest information.