** Description changed: I originally installed Ubuntu MATE 14.10 which I then updated to 15.04. At some point I decided to try KDE Plasma 5, so I installed the kubuntu- desktop package. I got the prompt asking me whether I wish to run lightdm or sddm and I chose lightdm. However after reboot I got black screen which loaded plasma cursors and I was unable to do anything without going to TTY. Running "systemctl status lightdm && systemctl status sddm" told me that they both were running and I solved this with "systemctl disable sddm" and rebooted and got lightdm normally. I think this might have something to do with Ubuntu 15.04 using systemd by default and sddm not having systemd unit. PS. I am not fully sure if this is sddm issue, but I feel this is. Feel free to move this to correct place if I am wrong. PPS. I experienced this week or two ago, but I don't think there have been upgrades to these packages, so I am sorry if this is known issue and already fixed. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: sddm 0.11.0-0ubuntu10 ProcVersionSignature: Ubuntu 3.19.0-14.14-generic 3.19.3 Uname: Linux 3.19.0-14-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 CurrentDesktop: MATE Date: Tue Apr 21 19:59:52 2015 InstallationDate: Installed on 2014-12-19 (123 days ago) InstallationMedia: Ubuntu MATE 14.10 "Utopic Unicorn" - amd64 (20141023) SourcePackage: sddm UpgradeStatus: Upgraded to vivid on 2015-04-05 (15 days ago) upstart.sddm.override: manual + + Upstream bug report: + https://github.com/sddm/sddm/issues/620 + (SDDM and LightDM can run in paralell (thus create conflict) + created 9.Apr.2016
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