>>> > 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 > > 'xset dpms force off; sleep 1; xset dpms force on' does indeed trigger > the error. I've attached my Xorg.0.log.old which includes the > segfault backtrace. I'm like a newborn baby when it comes to > compiling and Gentoo doesn't have a debug USE flag for > xf86-video-intel or xorg-server so I can't help there. Is there a > different package I should check for a debug USE flag? > > - Grant > > P.S. Sorry for the multiple sends. It looks like I also need to do 'xset s 0' because X also crashes if the screensaver comes on for more than a few seconds. Screen Saver: prefer blanking: yes allow exposures: yes timeout: 0 cycle: 600 Maybe it has something to do with turning off the backlight? - Grant
