SUMMARY Choosing SWITCH USER option causing system freeze on post-login desktop session. STEPS TO REPRODUCE There are 3 events. Event-1 Choose 'SWITCH USER' from an active desktop session(https://ibb.co/V2M6gdf). Get login screen & provide password. After 5 min (in my case) you will enter & get the desktop session frozen. Event-2 Step-1: Within a desktop session click Sleep. Step-2: Wake up the system from suspension but dont login there. Click 'SWITCH USER' option on that sceen(https://ibb.co/KVsTgSD). On next screen, input password in Login box. After 5 min you will enter & get the desktop session frozen. Event-3 Step-1: Within a desktop session click Sleep (additionally, one can suspend the session keeping any desktop applications e.g. Firefox running https://ibb.co/Cw92FdD). Step-2: Wake up the system from suspension but dont login there. Click 'SWITCH USER' option on that screen. On next screen click Sleep. Step-3: Wake up the system from suspension & try to login, input your password in the box. Next, login screen freezes/halts for approx 5 min (in my case) & thereafter gets into the Desktop session. The whole Desktop is frozen. Clicking on the wheel / pressing Windows key or clicking any other icons dont work. you can only hover mouse pointer. Access tty1 with Ctrl+Alt+F1 (if suspended with Firefox as in step-1, on tty1 at first you will get Firefox window without a title bar https://ibb.co/GvhxwCz. Login appears after quitting the Firefox). Once you input password there it freezes too. Got 2 crash reports: @desktop https://pastebin.com/RTpGGSDX https://ibb.co/X3WV9zC @tty1 https://pastebin.com/A4W3SvQg https://ibb.co/0m3Z0gh OBSERVED RESULT probably Shifting to other user account(s) not occurring in such cases. EXPECTED RESULT ?? SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: Kubuntu 20.04 (available in About System) KDE Plasma Version: 5.18.5 KDE Frameworks Version: 5.68.0 Qt Version: 5.12.8 ADDITIONAL INFORMATION Kernel Version: 5.4.0-47-generic OS Type: 64-bit Processors: 4 × Intel® Core™ i3-7020U CPU @ 2.30GHz Memory: 3.7 GiB of RAM
There is 1 user a/c only.
I was about to report a similar issue but then I saw this bug and figured it's related. So first I successfully reproduced this one and am now marking it as confirmed. Now, the issue I was about to report is that if you push Ctrl + Alt + L or <Meta> + L and then "Switch User" (I sometimes do this in order to get the "Sleep" button on the lockscreen) it will hang when you enter your password and try to log back in. Steps to Reproduce: 1. Push Ctrl + Alt + L to get lockscreen 2. Click "Switch User" 3. Enter your password and attempt to log in