On Wed, 15 Aug 2012 08:09:47 -0700, Grant <emailgrant at gmail.com> wrote: > > I'm using a Dell XPS 13 laptop on Gentoo and if I use: > > > > Option "AccelMethod" "sna" > > Option "TearFree" "true" > > > > my video tearing problem disappears, but if I close my laptop lid for > > a few minutes, it comes back up with a black screen, although I can > > get my session back if I switch to VT1 and then back to VT7. I can't > > find anything in the logs. I've tried xf86-video-intel-2.20.3 as well > > as the latest from git. The problem doesn't occur without the above > > two directives. > > > > Does anyone know how to diagnose or fix this? > > > > - Grant > > I can prevent this if I issue 'xset -dpms' before closing the laptop > lid, but xlockmore automatically re-enables dpms unfortunately. BTW, > this does not prevent the problem: The implication would seem to be that an action during dpms is going wrong. Does a simple 'xset dpms force off; sleep 1; xset dpms force on' trigger the error? If so can you please attach your Xorg.0.log and if you could compile with --enable-debug=full and send me the log reproducing the error that would be very helpful. Thanks, -Chris -- Chris Wilson, Intel Open Source Technology Centre