I tried to look into this as well. One finding I have made is that the problem happens for -display gtk but not with -display sdl so I'm thinking it might not be reading of data from the ps2 controller that is problematic but the writing to it. I will need to investigate further.
I tried to look into this as well. One finding I have made is that the problem happens for -display gtk but not with -display sdl so I'm thinking it might not be reading of data from the ps2 controller that is problematic but the writing to it. I will need to investigate further.