Attached full dmesg with drm.debug=0xe boot option. Additionally I unplugged/plugged the dvi/vga port after the second resume. The log shows, that those events get registered, but still no video output (monitor goes into power save).
** Attachment added: "dmesg_drm.debug_hotplug" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1250498/+attachment/3913149/+files/dmesg_drm.debug_hotplug -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1250498 Title: haswell, no video output after 2nd resume from suspend to disk (S4) Status in “xserver-xorg-video-intel” package in Ubuntu: New Bug description: I'm trying to enable a reliable hibernate/resume cycle on a intel haswell cpu/gpu system with ubuntu 13.10 +xfce. Until now I've failed, because I get three possible outcomes, when resuming (without seeing any pattern). In all cases pm reports, that 'Image restored successfully'; visible on tty1. Resulting system states after resume: i) resume just works fine, everything is o.k ii) X freezes, screen is completely black, mostly no reaction to key strokes (i.e. can't change to ttyX), but ssh is possible iii) like ii) but network is not reachable (I'd say a complete freeze) From situation ii) I got a dmesg (attached), which makes me think, that intel gpu driver is to blame. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1250498/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
