I notice this too. I describe it as the display locking up. Because if I leave something occasionally updating, like the task manager or performance monitor, then this program's window actually stops updating on screen while the keyboard and trackpad are
frozen.
Also, I find it's somehow related to the trackpad because if I keep drawing circles on the track pad, it will stay frozen indefinitely. Only when I stop touching the track pad for a second or two does the system become responsive and start updating the
display again. I also find that touching the touch screen (just drawing circles on the screen with my finger) seems to keep it locked up too.
Needless to say, the most popular remedies posted here don't work for me:
- press and hold volume up + power. Doesn't help.
- detach and reattach the keyboard. Doesn't help.
I think it's a bug in the display driver / compositor. I say this because if I
leave a YouTube video running (and it has to be at least partially actually visible, can't be minimized or covered by another window) then my keyboard/trackpad doesn't lock up.
Impractical workaround, but I sometimes do it when I'm desperate. Unfortunately that eats up internet bandwidth and power. :/
My theory is when it's constantly updating the display, it updates correctly, but when it doesn't have to update the display, it seems to spend too much time idling. At first I thought it might have something to do with power management settings, but I
haven't found any positive correlation with that.
I spent two weeks talking to Microsoft Technical Support about this issue and they weren't able to help me. Yet it seems to obvious to me what's going on and that it's a bug of some kind related to the display updates and the input system.
Very frustrating.