Public bug reported: Binary package hint: hibernate
My laptop does not hibernate correctly. It does suspend correctly. When hibernating: a) Black screen for about 8 secs b) Lots of random flikering on the screen for about 12 secs c) PC then turns off On re-starting: a) Grub screen appears b) Followed by usual Ubuntu log in page c) When logged in are in a fresh (nothing open) session The system is a fresh install of 11.04, that involved re-partitioning the disk, so the swap partition was also created afresh. The encrypted /home partition option was selected. Followed instructions at: DebuggingKernelSuspendHibernateResume https://wiki.ubuntu.com/DebuggingKernelSuspendHibernateResume This mentioned an issue with encrypted swap space causing hibernation to fail. So following the instructions at: http://www.logilab.org/blogentry/29155 I changed the swap partition over from encrypted to unencrypted. The old and new entries in the /etc/fstab are shown below: #/dev/mapper/cryptswap1 none swap sw 0 0 #/dev/sda9: UUID="64198743-6a35-4d69-b9cd-47b7726c7ef9" #/dev/sda9 none swap sw 0 0 UUID=64198743-6a35-4d69-b9cd-47b7726c7ef9 none swap sw 0 0 Is encrypted swap space still an issue with hibernation? Did I need to do this? After changing to unencrypted swap the hibernation behaviour was still the same. I then followed the instructions from: https://wiki.ubuntu.com/DebuggingKernelSuspendHibernateResume "pm-hibernate" Exactly the same behaviour as when hibernating from the graphical desktop The I followed each of the three sets of tests. The first 2 tests in each set always ran and nothing seemed to apparently happen. However, in all three cases the third "echo disk . ..." test caused a brief blank screen and then lots of random flickering as before, but this time the laptop did not switch off. A hard power off button had to be used in each case. This meant that I could not follow the "dmesg > ..." command as requested. What I then did was repeat the tests, but in each group after the second test I ran the "dmesg > ..." command and saved the file. I then ran the third test. The instructions also said to "cat /sys/power/pm_test and cat /sys/power/disk", this was done and the results saved to files. I will attach the various fails created to this ticket. If I can run any other tests to help with this issue please post. ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: hibernate (not installed) ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2 Uname: Linux 2.6.38-8-generic i686 Architecture: i386 Date: Mon Jun 20 21:04:48 2011 EcryptfsInUse: Yes InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1) ProcEnviron: LANGUAGE=en_GB:en LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: hibernate UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: hibernate (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 natty running-unity -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/799919 Title: Laptop Fails to Hibernate Correctly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/hibernate/+bug/799919/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
