Kubuntu 20.04 behaves correctly when I boot with one or two displays. But with three displays I experience a bug on the default one – the one with an initial focus on:
When typing password keystroke after keystroke:
- First character is written and selected
- Second character overwrites the first one because it is selected
- Third character is written and selected
- Forth character overwrites the third one because it is selected
- And so on…
So for example, if you try to type “pAssw0rd” you end up with “As0d” in the input and the login fails, if you try to type “ppAAssww00rrdd” in the input you end up with “pAssw0rd” and login succeeds.
GIF to demonstrate how does it look like – I type 8 characters and enter:
Kubuntu 20.04 login bug with overwriting odd characters
It works correctly when I manually select password input on another display, either by mouse or key.
Are there any meaningful ways how to try to fix it or debug it before reporting it as a bug?