Hi, > I was wondering if anyone could help me figure out why I get a > "cl_get_gt_device(): error, unknown device" when attempting to run > gr-fosphor benchmark tool.
That error doesn't come from fosphor ... Googling for it shows it's printed by 'beignet' which is an experimental OpenCL implementation for the Intel GPU. So, I'd try to remove that ... or make sure you're using the NVidia GPU with X11 and that the drivers and OpenCL ICD are properly setup. Maybe try asking in fedora forums / irc channels, they might know how to properly install them for your distribution. Cheers, Sylvain
