Public bug reported: I have a laptop that I connect to an external monitor. After I open the lid and hit a button to wake the computer I will connect the HDMI cable for the monitor. After plugging in the HDMI, the login screen freezes intermittently so I can't type in my password. The mouse is missing and unresponsive and the keyboard doesn't type anything.
To fix this I press Ctrl-Alt-F1 and log into the terminal. I then use the command "sudo service lightdm restart" to restart the window manager. This fixes the login issue, however it also closes all of the open applications that I had on suspend, which is not desirable. Sometimes, after typing in my password once I've restarted lightdm, the display will get locked into a weird "refresh" state, where the user session doesn't start and the screen is stuck with no window manager, no dash, and the background is partially on both screens. If the computer gets into this weird display mode then the only fix is to reboot. I would like to be able to plug in the HDMI from a sleep and be assured that the computer can recover the running session without crashing the login screen or the display manager. Repro steps: - Close laptop lid to put it to sleep - Connect HDMI cable - Open lid and press button (optionally, open lid then connect cable) Graphics: - Intel HD 4000 Computer: - Lenovo Yoga Pro 2 ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: lightdm 1.12.3-0ubuntu1 ProcVersionSignature: Ubuntu 3.16.0-34.45-generic 3.16.7-ckt8 Uname: Linux 3.16.0-34-generic x86_64 ApportVersion: 2.14.7-0ubuntu8.2 Architecture: amd64 CurrentDesktop: Unity Date: Tue Apr 7 07:14:29 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2014-12-18 (110 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) SourcePackage: lightdm UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: lightdm (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug utopic -- 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/1441193 Title: Login screen crashes after HDMI cable is plugged in, resumed from suspend Status in lightdm package in Ubuntu: New Bug description: I have a laptop that I connect to an external monitor. After I open the lid and hit a button to wake the computer I will connect the HDMI cable for the monitor. After plugging in the HDMI, the login screen freezes intermittently so I can't type in my password. The mouse is missing and unresponsive and the keyboard doesn't type anything. To fix this I press Ctrl-Alt-F1 and log into the terminal. I then use the command "sudo service lightdm restart" to restart the window manager. This fixes the login issue, however it also closes all of the open applications that I had on suspend, which is not desirable. Sometimes, after typing in my password once I've restarted lightdm, the display will get locked into a weird "refresh" state, where the user session doesn't start and the screen is stuck with no window manager, no dash, and the background is partially on both screens. If the computer gets into this weird display mode then the only fix is to reboot. I would like to be able to plug in the HDMI from a sleep and be assured that the computer can recover the running session without crashing the login screen or the display manager. Repro steps: - Close laptop lid to put it to sleep - Connect HDMI cable - Open lid and press button (optionally, open lid then connect cable) Graphics: - Intel HD 4000 Computer: - Lenovo Yoga Pro 2 ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: lightdm 1.12.3-0ubuntu1 ProcVersionSignature: Ubuntu 3.16.0-34.45-generic 3.16.7-ckt8 Uname: Linux 3.16.0-34-generic x86_64 ApportVersion: 2.14.7-0ubuntu8.2 Architecture: amd64 CurrentDesktop: Unity Date: Tue Apr 7 07:14:29 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2014-12-18 (110 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) 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/1441193/+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