lspci
with no option doesn't show drivers. It only shows detected devices. If your device turns up, it means that it's plugged in and not completely dead, but it doesn't imply that the device is working correctly.
If lspci -k
or lspci -v
reports that your device is in use by a driver, that usually implies that the driver was able to complete some form of initialization. It gives you more confidence that the device is working, but again not complete confidence. Buggy hardware (in the sense that this particular piece of hardware is malfunctioning, as opposed to a design issue) is fairly rare, but not impossible.
Do you perform any GPU benchmarks? I attempted to use Phoronix but was unable to get it going, and have been unable to find anything to compare my Globs results to.
– Adam Aug 11 '13 at 12:32