Public bug reported: I have a Thinkpad W520. In Optimus mode, lightdm presents a blank screen after login. Virtual terminals work. On the same laptop, gdm3 allows me to log in to ubuntu desktop. In pure Nvidia mode, login works.
The bug report tool told me that log files will be attached. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: lightdm 1.26.0-0ubuntu1 ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15 Uname: Linux 4.15.0-15-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.9-0ubuntu4 Architecture: amd64 Date: Sun Apr 15 19:55:08 2018 InstallationDate: Installed on 2018-02-25 (49 days ago) InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180225) SourcePackage: lightdm UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: lightdm (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic -- 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/1764089 Title: blank screen (no backlight) after login on both xubuntu and ubuntu desktops, Optimus laptop Status in lightdm package in Ubuntu: New Bug description: I have a Thinkpad W520. In Optimus mode, lightdm presents a blank screen after login. Virtual terminals work. On the same laptop, gdm3 allows me to log in to ubuntu desktop. In pure Nvidia mode, login works. The bug report tool told me that log files will be attached. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: lightdm 1.26.0-0ubuntu1 ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15 Uname: Linux 4.15.0-15-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.9-0ubuntu4 Architecture: amd64 Date: Sun Apr 15 19:55:08 2018 InstallationDate: Installed on 2018-02-25 (49 days ago) InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180225) 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/1764089/+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