** Description changed: + EDIT : initial title was "hibernation fails because 99video does not + terminate" + When I initiate an hibernation on my computer, the following frequently happens (about 50% of the time) : 1. screen goes black (normal) ; 2. instead of showing the progress of the writing of RAM to disk in console mode, the screen remains black ; 3. the screensaver prompt for login appears ; 4. after returning to desktop, I see that the network card is not functioning ; 5. /var/log/pm-suspend.log last line is "Running hook /usr/lib/pm-utils/sleep.d/99video hibernate hibernate:". Indeed, a ps -ef | grep 99video shows that the /usr/lib/pm- utils/sleep.d/99video script is still running. If I kill this script, pm-utils logs "/usr/lib/pm-utils/sleep.d/99video hibernate hibernate: Returned exit code 143.", aborts hibernation and then runs the hooks for thaw. I can then try again to hibernate, and it works : I never had this bug trigger twice in a row. This bug did not occur when I was running Ubuntu 12.04 and the corresponding kernels (but back then I was also using the video card driver from AMD's website instead of fglrx-updates). + + EDIT : further debugging (PM_DEBUG=true) shows that the blocking point in 99video is "chvt 63". I tried to hibernate with --quirk-no-chvt. This allows the script 99video to terminate and the hibernation process itself to engage. However, my hibernation module, /usr/lib/pm-utils/module.d/hibernate, does a chvt 63 too, which is not controlled by the --quirk-no-chvt. + + So I experienced again a return to desktop with a chvt process not + progressing. I killed it and hibernation took place, without any visual + clue. On booting the system again, thaw took place correctly but the + system was not usable because I did not get access to a console + (graphical or text). Indeed, the pm-suspend.log shows that chvt 8 did + not return. + ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: pm-utils 1.4.1-13ubuntu0.1 ProcVersionSignature: Ubuntu 3.13.0-32.57~ppa1-generic-tuxonice 3.13.11.4 Uname: Linux 3.13.0-32-generic-tuxonice x86_64 NonfreeKernelModules: fglrx ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 CurrentDesktop: XFCE Date: Wed Jul 30 08:47:17 2014 InstallationDate: Installed on 2014-07-18 (11 days ago) InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2) PackageArchitecture: all SourcePackage: pm-utils UpgradeStatus: No upgrade log present (probably fresh install)
** Summary changed: - hibernation fails because chvt 63 hangs + hibernation fails because chvt hangs ** Attachment added: "log with debugging and --quirk-no-chvt" https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1350220/+attachment/4167863/+files/pm-suspend.log -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pm-utils in Ubuntu. https://bugs.launchpad.net/bugs/1350220 Title: hibernation fails because chvt hangs Status in “pm-utils” package in Ubuntu: New Bug description: EDIT : initial title was "hibernation fails because 99video does not terminate" When I initiate an hibernation on my computer, the following frequently happens (about 50% of the time) : 1. screen goes black (normal) ; 2. instead of showing the progress of the writing of RAM to disk in console mode, the screen remains black ; 3. the screensaver prompt for login appears ; 4. after returning to desktop, I see that the network card is not functioning ; 5. /var/log/pm-suspend.log last line is "Running hook /usr/lib/pm-utils/sleep.d/99video hibernate hibernate:". Indeed, a ps -ef | grep 99video shows that the /usr/lib/pm- utils/sleep.d/99video script is still running. If I kill this script, pm-utils logs "/usr/lib/pm- utils/sleep.d/99video hibernate hibernate: Returned exit code 143.", aborts hibernation and then runs the hooks for thaw. I can then try again to hibernate, and it works : I never had this bug trigger twice in a row. This bug did not occur when I was running Ubuntu 12.04 and the corresponding kernels (but back then I was also using the video card driver from AMD's website instead of fglrx-updates). EDIT : further debugging (PM_DEBUG=true) shows that the blocking point in 99video is "chvt 63". I tried to hibernate with --quirk-no-chvt. This allows the script 99video to terminate and the hibernation process itself to engage. However, my hibernation module, /usr/lib/pm-utils/module.d/hibernate, does a chvt 63 too, which is not controlled by the --quirk-no-chvt. So I experienced again a return to desktop with a chvt process not progressing. I killed it and hibernation took place, without any visual clue. On booting the system again, thaw took place correctly but the system was not usable because I did not get access to a console (graphical or text). Indeed, the pm-suspend.log shows that chvt 8 did not return. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: pm-utils 1.4.1-13ubuntu0.1 ProcVersionSignature: Ubuntu 3.13.0-32.57~ppa1-generic-tuxonice 3.13.11.4 Uname: Linux 3.13.0-32-generic-tuxonice x86_64 NonfreeKernelModules: fglrx ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 CurrentDesktop: XFCE Date: Wed Jul 30 08:47:17 2014 InstallationDate: Installed on 2014-07-18 (11 days ago) InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2) PackageArchitecture: all SourcePackage: pm-utils UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1350220/+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