LIBGL_DEBUG=verbose fglrxinfo
libGL: XF86DRIGetClientDriverName: 8.26.18 fglrx (screen 0)
libGL: OpenDriver: trying /usr/lib64/dri/fglrx_dri.so
libGL: XF86DRIGetClientDriverName: 8.26.18 fglrx (screen 0)
drmOpenByBusid: busid is PCI:1:0:0
drmOpenDevice: minor is 0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 4, (OK)
drmOpenByBusid: drmOpenMinor returns 4
drmOpenByBusid: drmGetBusid reports PCI:1:0:0
Can't open configuration file /etc/drirc: No such file or directory.
Can't open configuration file /home/phoronix/.drirc: No such file or directory.
display: :0.0 screen: 0
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: Radeon X1800 Series Generic
OpenGL version string: 2.0.5879 (8.26.18)