Comment # 10 on bug 109171 from Sherif

I restarted, logged into KDE then $ dmesg >> dmesg. After a minute, $
DRI_PRIME=1 dmesg >> dmesg2. Did I do it correctly?

(In reply to Alex Deucher from comment #2)
> You need a relatively advanced 3D game to see an advantage on the dGPU as you
>  have to overcome the overhead of the additional copies.

Counter-Strike: Global Offensive is much slower, when I run Steam with
DRI_PRIME=1.

Additional Info:
I installed Steam from RPMFusion.