Error when running gr-fosphor/lib/fosphor/main

[Radu Alexandru Popescu]

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.

gr-fosphor compiled from git, installed in /usr, rest of packages
installed with package manager.

System is a Acer V3-772G NX.M8UEX.004 with a GeForce GTX 760M running
Fedora 20 x86_64.


Thank you in advance for any suggestions.

[Sylvain Munaut]

Hi,

Post by Radu Alexandru Popescu
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