Public bug reported: above behavior is 100% reproducible since new installation of Ubuntu 14.04 (no upgrade from 12.04). After hibernate wake up the screen displayed looks like a distorted chess game with black and white areas no coloured areas visible. Trying to open a console does not work! Mouse and keyboard actions show no response. Only the power off switch is still working! In 12.04 I had no such problems with the same hardware.
ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: lightdm 1.10.5-0ubuntu1 ProcVersionSignature: Ubuntu 3.16.0-34.47~14.04.1-generic 3.16.7-ckt8 Uname: Linux 3.16.0-34-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.10 Architecture: amd64 CurrentDesktop: Unity Date: Thu Apr 23 18:50:52 2015 InstallationDate: Installed on 2015-03-26 (28 days ago) InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1) SourcePackage: lightdm UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: lightdm (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug trusty -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1447719 Title: system deadlock after hiberbate wake up Status in lightdm package in Ubuntu: New Bug description: above behavior is 100% reproducible since new installation of Ubuntu 14.04 (no upgrade from 12.04). After hibernate wake up the screen displayed looks like a distorted chess game with black and white areas no coloured areas visible. Trying to open a console does not work! Mouse and keyboard actions show no response. Only the power off switch is still working! In 12.04 I had no such problems with the same hardware. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: lightdm 1.10.5-0ubuntu1 ProcVersionSignature: Ubuntu 3.16.0-34.47~14.04.1-generic 3.16.7-ckt8 Uname: Linux 3.16.0-34-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.10 Architecture: amd64 CurrentDesktop: Unity Date: Thu Apr 23 18:50:52 2015 InstallationDate: Installed on 2015-03-26 (28 days ago) InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1) SourcePackage: lightdm UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1447719/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp