(In reply to Takashi Iwai from comment #13) > What shows /sys/module/i915/parameters/enable_guc if you don't pass the > value -1? After loading the driver, it'll be set to either 0, 1 or 2. For this please test without option "i915.enable_guc=1" (and all the other options). If needed, i.e. you're using an /etc/modprobe.d file snippet, recreate initrd afterwards via mkinitrd