Welcome to the forum!
rootzero:
As it stands, when I reboot I have to open up system settings and move the mouse sensitivity down, hit apply, then move it back to where I want it for the desired sensitivity to apply. That seems to temporarily fix the mouse. For the keyboard, no amount of fiddling with the settings changes my input delay. I’ve recently found editing the delay with xset makes it useable, but I’d really like to fix the underlying issue. It also appears that passing -ardelay and -arinterval to xserverrc doesn’t address the issue either.
A while ago, I had similar problems in Plasma. In my case, it was the keyboard repeat rate and delay that wouldn’t persist across logins, a no longer working compose key, and the behavior of the numeric keypad.
Below is the link to my post on how I fixed things. Maybe you’ll find some inspiration in it.
Okay, I have now solved all of the keyboard problems I was having, albeit that I had to set up things in different places. I will describe the solutions below.
