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I'm on Kubuntu 20.04 and on startup I get this error:

We are sorry, ksplashqml closed unexpectedly

And I cannot do anythink except show a text mode only shell with ctrl+alt+f2

How can I fix my system? ksplashqml crash

Yukulélé
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  • It happened to me on Kubuntu 21.10 today, so I suspect some broken package got shipped with updates. I was able to make the workspace partially work by running DISPLAY:=0 kstart5 plasmashell from the text mode. Now I am able to use plasma, but some keybinds do not work, so it is certainly only a temporary solution. – jenda Feb 21 '22 at 08:54
  • This is happening for me, too, but only one of the two users for the machine. When I tried launching DISPLAY=:0 plasmashell I got an error about breeze-dark icons not being found. Not sure if that's related. Sorry I don't have an answer, but I'm hoping the fact that it works for one profile may give somebody an idea. – divido Feb 20 '22 at 21:14

4 Answers4

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Same issue here. I have read somewhere that it was in connection with use of shell fish. I do the following test.

  • Install fresh kubuntu 21.10 on virtual machine (vmware)
  • do full updates
  • install shell fish (at this stage all is working)
  • change default shell for the user to fish
  • disconnect from plasma and reconnect (i have the issue)
  • switch to a console alt-ctl-F2 and change back the default shell to bash
  • reboot the machine

After change back to bash plasma start without any issue.

Jeanot
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  • Thank you, this worked for me. It is a better workaround than starting plasmashell manually. I am sad that I can not use fish as my default shell, but it is better than not being able to run plasma correctly. – jenda Feb 21 '22 at 13:18
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    That works perfectly! thanks! I there a way to keep using fish with plasma? – Yukulélé Feb 21 '22 at 23:04
  • It's work after i change default shell. Thanks a lot! – Ciao Feb 22 '22 at 14:22
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i got this error if i updating Kubuntu 20.04 KDE with fish shell. restored then by backup and repeated the update bit by bit.

the complete error message: ksplashqml PID: 1761 Signal: Segmentation fault (11) Time: 20.02.22 09:10:22

this works for me:

  1. select update selected
  2. don't update linux-generic-hwe-20.04
  3. update
  4. surprisingly linux-generic-hwe-20.04 wasn't in the list anymore (I repeated that again because I didn't believe myself at first)
  5. reboot.

Operating System:

Operating System: Kubuntu 20.04
KDE Plasma Version: 5.18.8
KDE Frameworks Version: 5.68.0
Qt Version: 5.12.8
Kernel Version: 5.13.0-28-generic
OS Type: 64-bit

Operating System now (27.02.2022)

Operating System: Kubuntu 20.04
KDE Plasma Version: 5.18.8
KDE Frameworks Version: 5.68.0
Qt Version: 5.12.8
Kernel Version: 5.13.0-30-generic
OS Type: 64-bit

the same error happens at Laptop (other device) with same configuration (same OS, same shell, same Tool's).

at Laptop i only needed to wait over a week (don't updating anything), then updating again without errors (20.02.22).

SL5net
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+1 for this issue. Nothing seems to be working. Unfortunately for me DISPLAY=:0 kstart5 plasmashell didn't help. I could fix it by switching to MATE desktop however:

sudo apt install ubuntu-mate-desktop
Dmitry Voronov
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  • Yes, it's what I do first (I installed xfce4) but finally @Jeanot solution works perfectly (disable fish shell) – Yukulélé Feb 21 '22 at 23:41
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Now that I have enough reputation, I can post an asnwer here.

I opened another question at Kubuntu Ksplashqml crashed where I posted my solution. Copying from there:

After some hours of troubleshooting I switched my Display Manager to lightdm and suddenly everything worked again. Find out current DM with:

systemctl status display-manager

In my case it was sddm. Reconfigure DM to lightdm:

sudo dpkg-reconfigure sddm

This way you can keep using fish shell and Plasma

Tom
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