Black Kde Screen

[Jose96]

Hi I just made some updates and after the reboot i found this black screen.
I can use Manjaro but I can’t interact with the desktop (no right click).
It’s not the first time I have this problem.

PS. How can I upload the screenshot?

[winnie]

Try this, see if it resolves it:

1. Log out of KDE

2. Switch to TTY2 with CTRL + ALT + F2

3. Login with your username/password to this terminal

4. Stop the SDDM service

sudo systemctl stop sddm

5. Rebuild KDE cache

kbuildsycoca5 --noincremental

6. Wait about ten seconds

7. Restart the SDDM service

sudo systemctl restart sddm && exit

8. Switch back to TTY1 with CTRL + ALT + F1 and login to your KDE session

---

If this still doesn’t resolve it, there’s one extra thing you can try, but it will mean you need to redo your display config.

[Mirdarthos]

Hi @Jose96, and welcome!

@Jose96

PS. How can I upload the screenshot?

[HowTo] Post screenshots and links

Difficulty: ★☆☆☆☆ You’ve probably been sent here by a more experienced user because you cannot post links nor screenshots so please follow the simple instructions of this tutorial below to allow you to post both screenshots and links in any post and have a short explanation of why you can’t do this easily… If you’re reading this in response to a question, please click the green link above this text to bring you to the full unabridged text of the tutorial itself. If you …

[Jose96]

It didn’t work.
I don’t care if I have to redo my display configuration.

it seems that if I modify my display config (I’m using an hdmi monitor) this problem disappear but I don’t know why.
Maybe it’s related to the fact that I’m using an external monitor.

[Jose96]

Thank you.

[winnie]

Repeat the above steps, but before Step #7 do this:

rm -rfv ~/.local/share/kscreen

Then continue with Step #7 and #8.

Please be careful with the rm command. It will not prompt you for a confirmation, so make sure you don’t accidentally type in something else or use auto-complete for the wrong target.

[winnie]

@Jose96

it seems that if I modify my display config (I’m using an hdmi monitor) this problem disappear but I don’t know why.

Removing the directory ~/.local/share/kscreen will reset your Display / external monitor settings. By modifying the settings, you might have forced KDE to refresh the config files.

It’s possible that with updates to KDE, there is a mis-match of older settings (maybe a different format?) and the latest KDE/Plasma version.

[Jose96]

Thank you, this worked !!!

[winnie]

I must be in a stupor. Are my eyes or mind playing tricks on me, or did you just change your avatar profile image?

[Jose96]

just changed.
I logged out after installing matlab and now i have the same problem…

[winnie]

Even after repeating the above (all of them) steps?

[Jose96]

No i think I have just to change my monitor config, it’s faster.
But I’d like to understand why this problem comes out