Using Intel HD 5500 on Fedora 21. Requires a monitor attached for full speed, otherwise too slow
Submitted by bellekci
Assigned to ruiling
I have seen that when there is no monitor attached or only a USB-monitor is attached to the computer, the performance of openCL is very slow. X server was running in all cases.
Can anyone confirm this?
Please, simply compare the performances (speed) of the cases when a normal (VGA, HDMI,etc) monitor is attached and when only a USB-monitor is attached to the computer.
my kernel: 3.19.2