I'm puzzled.
I have been doing some gaming on my Lenovo laptop lately and two days ago I noticed a white pixel on my Windows 11 desktop. Moving a dark background window over/under that pixel actually revealed this.
At first I thought this is a hardware issue with my monitor (stuck pixel), but when I noticed the white pixel disappearing irregularly, I thought this is not monitor-related. Restarting Windows 11 usually fixes the white pixel for a while, but at some point, it just comes back:
I was completely confused when I was moving the mouse cursor over the white pixel, which made/makes the white pixel disappear. I changed the mouse cursor to a black one for better confirmation:
Does anyone have an idea what the issue might be here?
Is it a problem with some graphics card buffer being corrupted (Nvidia RTX A4000)? Some other buffer with Windows? I doubt Windows is still using any buffers itself, given that my Lenovo is approximately one year old and they're all using hardware acceleration for just about anything... -> it's a Lenovo P71 from 2022 to be precise.
EDIT:
Monitor is a Dell U4021QW.

