Haha, I think I have the culprit : xserver-xorg-video-intel.
It added a file /etc/modprobe.d/i915-kms.conf containing a line "options i915 modeset=1". Changing to modeset=0 or simply removing the file seems to fix the problem.
Probably this bug can be closed or reassigned, but I'm not sure how to do that.
Cheers, Jeremie -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4b7bd9af.2010...@spht.saclay.cea.fr