[kde] [Bug 424375] New: Unable to BOOT after installing kde

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=424375

            Bug ID: 424375
           Summary: Unable to BOOT after installing kde
           Product: kde
           Version: unspecified
          Platform: Ubuntu Packages
                OS: Linux
            Status: REPORTED
          Severity: critical
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: php4fan at gmail.com
  Target Milestone: ---

SUMMARY

On regular Ubuntu (not kubuntu) 20.04, I installed kde with:

   $ sudo apt-get install kde-standard

I got a prompt to choose a display manager, i.e. sddm, kdm3 or another one that
I can't remember.

I had no clue and the prompt screen was uninformative (that's an issue on its
own), but after a bit of research, I seemed to understand the best choice was
"sddm", so I chose that one.

After installation was complete with no error message, I rebooted.

I got nothing but a black screen for several minutes.

I turned the laptop off and on, and again, black screen forever.

My computer was BRICKED.

I was able to recover from the desaster by hitting ctrl+alt+F3, logging in via
the virtual console, and running:

  sudo dpkg-reconfigure kdm3

Prompted again to choose the display manager, this time I chose kdm3.

Then I rebooted again, and this time I could get as far as the login screen.

Now, after selecting the user, I clicked on the gear icon on the bottom-right
which allows you to choose the desktop environment to log in to. I chose Plasma
(freshly installed).


After that, again a black screen.

I retried several times. No way to log in to KDE Plasma.

So I restarted again and logged in into Cinnamon.





SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Ubuntu 20.04
KDE Plasma Version: no idea
KDE Frameworks Version: no idea
Qt Version: no idea

ADDITIONAL INFORMATION

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