reopen 345537 thanks I just tried to restart acpid and the bug seems to be still here, xorg starts using all the available cpu time. For the record, a related discussion was here: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=347680 and upstream bug is here: https://bugs.freedesktop.org/show_bug.cgi?id=5140 thanks -- mattia :wq!