root@chamber:/home/piktor# lspci | grep VGA00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Thames [Radeon HD 7500M/7600M Series] (rev ff)root@chamber:/home/piktor#
root@chamber:/home/piktor# cat /sys/kernel/debug/vgaswitcheroo/switch 0:DIS: :DynOff:0000:01:00.01:IGD:+:Pwr:0000:00:02.0root@chamber:/home/piktor#
echo ON > /sys/kernel/debug/vgaswitcheroo/switch
on kernels >= 3.12, vgaswitcheroo is not needed anymore to turn off the discrete gpu, only if you wish to verify the power state.
ТС а в логах системи дивилися. Особливо Xorg.log
добився лише згасання екрану.
The Dynamic Switch needs Xorg support for the discrete videocard assigned for rendering to work. So, rendering on the discrete gpu will not work until the Xorg team adds support for it.This means that with a muxless intel+ati design, you cannot use your discrete card by simply modprobing the radeon module.