/usr/share/X11/xorg.conf.d/20-intel.conf

Section "Device"
    Identifier "intelgpu0"
    Driver "intel"
    Option "VirtualHeads" "2"
#   BusID       "PCI:0:2:0"
    Option      "AccelMethod" "sna"
    Option      "DRI"    "true"
#   Option      "TearFree"  "true"
#   Option "DRI" "3"
EndSection