X11 completely bricked after trying to launch game via steam

After trying to launch a proton game with x11 on archlinux with the listed settings enabled, x11 blackscreened completely, no cursor, nothing. After a quick restart i discovered that x11 keeps blackscreening right after the login splash screen. I am still able to restart the compositor using ctrl+alt+backspace. I have a presentation in an hour, please help.

  • restore resolution on game exit
  • restore gamma on game exit
  • disable desktop effects
  • switch resolution