I’ve a switchable graphics card and I would like to know if my AMD card is consuming power and if so need to disable it. I’ve no problem using ‘intel’ driver but I’m not able to use the ‘fglrrx’ driver. To check if the dedicated GPU is powered on, I tried to access the /sys/kernel/debug/vgaswitcheroo which was not available. I was also not able to mount is as it seems that this needs to be enabled in the kernel.
Is there a way I can check and disable the dedicated GPU other than using vgaswitcheroo?
If not, what needs to be done? (Kernel recompiling?)