Suddenly the @ and the € key on my laptop no longer work. What can I do to reactivate dss?
The country keyboard has probably been changed. In the English or American keyboard layout (can of course be another country).
This can e.g. For example, if you accidentally press the Shift and Alt keys, pressing the combination again cancels the process.
Maybe the AltGr switchover is affected.
And what can I do now?
It does not work
Check and, if necessary, correct errors: is there coffee or something sugary?