There was a typo bug for noveau^Wnouveau in pm-utils 1.2.6(.x) : http://cgit.freedesktop.org/pm-utils/commit/?id=738bfc88110d0f0a7a64b754875358a1a870bded I thought some people here might be interested, as it looks like it can have bad effects in some situation/setup : http://bugs.archlinux.org/task/17735