https://bugs.freedesktop.org/show_bug.cgi?id=104185

--- Comment #5 from quentin@intrepide.io --- all system freeze, can't do anything, so I can't switch tty with Ctrl+Alt+FX(In reply to ominous from comment #4)

For those who experience a freeze, please try the following:

• Switch to a terminal with Ctrl + Alt + F7
• Switch back to your original environment with Ctrl + Alt + F1

I am experience some freezing but I am not entirely sure if it is the same freezing as in this thread. Doing the above trick unfreezes the system.

all system freeze, can't do anything, sound freeze too so I can't switch tty with Ctrl+Alt+FX (I use it too when xserver or gnome freeze/crash)