Found a problem using #guix + #gnome + #gdm. Having a desktop and a laptop and 2 external monitors when switching the output from both of them to the laptop the desktop over time (~40 mins) will go into some strange and unresponsive mode even after switching them back to it: #gdm won't let you log in and even switch to TTY and even ssh login won't work on local network 😨 Found out I am not only one with this problem

Had to order cheap external monitor that will always be "on" on for the desktop