Activity log for bug #1694695

Date Who What changed Old value New value Message
2017-05-31 12:13:17 Karl W. bug added bug
2017-05-31 12:15:20 Karl W. description I'm running a clean install of Xubuntu 17.04 on a Thinkpad X230 and a docking station. Whenever the login screen comes up -- after booting, by locking the screen, waking up from standby -- as long as I'm plugged into the docking station, the laptop display and all connected monitors just show a blinking underscore and start flickering. It seems like they are endlessly switching resolutions. I can immediately resolve the issue for the moment by releasing the laptop from the dock -- the greeter pops up and I can login normally. After login, everything works as expected, including multiple monitors etc. I understand that all relevant logs are added to this bug automatically, let me know if anything's missing! ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: lightdm 1.18.3-0ubuntu1.1 ProcVersionSignature: Ubuntu 4.8.0-52.55~16.04.1-generic 4.8.17 Uname: Linux 4.8.0-52-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 CurrentDesktop: XFCE Date: Wed May 31 14:05:16 2017 EcryptfsInUse: Yes InstallationDate: Installed on 2017-05-14 (16 days ago) InstallationMedia: Xubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215) LightdmDisplayLog: (II) AIGLX: Suspending AIGLX clients for VT switch (II) AIGLX: Suspending AIGLX clients for VT switch SourcePackage: lightdm UpgradeStatus: No upgrade log present (probably fresh install) I'm running a clean install of Xubuntu 16.04 on a Thinkpad X230 and a docking station. Whenever the login screen comes up -- after booting, by locking the screen, waking up from standby -- as long as I'm plugged into the docking station, the laptop display and all connected monitors just show a blinking underscore and start flickering. It seems like they are endlessly switching resolutions. I can immediately resolve the issue for the moment by releasing the laptop from the dock -- the greeter pops up and I can login normally. After login, everything works as expected, including multiple monitors etc. I understand that all relevant logs are added to this bug automatically, let me know if anything's missing! ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: lightdm 1.18.3-0ubuntu1.1 ProcVersionSignature: Ubuntu 4.8.0-52.55~16.04.1-generic 4.8.17 Uname: Linux 4.8.0-52-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 CurrentDesktop: XFCE Date: Wed May 31 14:05:16 2017 EcryptfsInUse: Yes InstallationDate: Installed on 2017-05-14 (16 days ago) InstallationMedia: Xubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215) LightdmDisplayLog:  (II) AIGLX: Suspending AIGLX clients for VT switch  (II) AIGLX: Suspending AIGLX clients for VT switch SourcePackage: lightdm UpgradeStatus: No upgrade log present (probably fresh install)