介紹

Disabling the ATI/AMD kernel extensions will not force the OS to switch to the Intel integrated graphics.

It's a misconception in all the fixes/instructions out there...

All that does is running the discrete chip with a fallback driver with no graphic acceleration.

This is akin to seeing the "640x480 VGA" standard display mode on Windows back in the day whenever it cannot load the proprietary GPU driver.

Same GPU is being used, just not at its full capacity.

mount -t efivarfs -o rw, /sys/firmware/efi/efivars/

gpu-switch

Homepage: https://github.com/0xbb/gpu-switch

# switch to the integrated GPU:

./gpu-switch -i

# switch to the dedicated GPU:

./gpu-switch -d