Last thing I did, which I suspect caused this is installing mesa-tkg-git.
The issue started after I rebooted, installing it.
But then I tried restoring through Time-shift, even to the oldest snapshot. It didn't work.
Now, my suspicion, is that something has gone wrong with the home directory.
Please tell me how I will check it?
This issue has been posted about more times than I can count on the forum (assuming the compositor being off is the culprit).
Why don't you search "compositor" in the KDE system settings utility.
Or, simply search the forum for "turn on compositor".
Thanks a lot. I had searched in the forum for this issue, but I didn't know what a compositor was, so I couldn't search specifically.
All those distributions listed in your profile? Start learning their parts. Parts is parts.
Then you should search form first.
Go to System Settings, then Display Configuration, then Compositor and see if there's a message there about Compositor having crashed and you have to click on something to re-enable it. If it doesn't get re-enabled, try making a change to "Allow applications to block compositing" and Apply. If this doesn't fix it, try pressing Ctrl+Alt+F12 but be advised [!] that it can crash the system (it crashes mine) and you have to Ctrl+Alt+Del then to restart.
But again, this should work:
1. System Set…
Thanks for your help, the case is solved
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