Linux ( via proton ) - Vulkan + "Full Screen Focus Behavior" = crash on startup - possible solution

[sinatosk]

I've just recently ( 3-4 days ) started playing Deadlock with vulkan enabled.

I enabled "Full Screen Focus Behaviour" ( checkbox under the rendering api menu ), and that's when Deadlock fails to start ( window closes after a few seconds )

I've been reading reports dating back to August all reporting similar issues.

For me this is what got Deadlock opening again with vulkan still enabled

go to and open file at "/home/user/.steam/steam/steamapps/common/Deadlock/game/citadel/cfg/video.txt"

and find the line that matches...

"setting.fullscreen_min_on_focus_loss"

the line should look something like

"setting.fullscreen_min_on_focus_loss" "1"

simply change that setting to 0, for example

"setting.fullscreen_min_on_focus_loss" "0"

save, and start Deadlock, no need to restart steam but I ain't stopping you

this disables ( unticks the checkbox ) the "Full Screen Focus Behaviour"

hope this helps