Now I COMPLETELY understand the difference between switching form nvidia to nv or vice versa and switching from nvidia to nouveau and vice versa [1] ;). Regards, Ralf [1] # pacman -Syu nouveau-dri :: libgl and nvidia-utils are in conflict. Remove nvidia-utils? [y/N] y error: failed to prepare transaction (could not satisfy dependencies) :: lib32-nvidia-utils: requires nvidia-utils :: nvidia: requires nvidia-utils=304.43 # pacman -R nvidia lib32-nvidia-utils error: failed to prepare transaction (could not satisfy dependencies) :: google-earth: requires lib32-libgl :: lib32-mesa: requires lib32-libgl # pacman -Syu lib32-libgl :: lib32-libgl and lib32-nvidia-utils are in conflict. Remove lib32-nvidia-utils? [y/N] y Targets (4): lib32-nvidia-utils-304.43-1 [removal] tzdata-2012f-1 xf86-video-nouveau-1.0.2-1 lib32-libgl-8.0.4-4 # pacman -R nvidia # pacman -Syu nouveau-dri Targets (4): libdrm-nouveau1-2.4.33-1 libgl-8.0.4-3 nvidia-utils-304.43-1 [removal] nouveau-dri-8.0.4-2