Error running games with UMU disabled.

When running a game with UMU disabled (i.e., "Disable UMU" enabled), I get an assertion failed error (see attached image; logs are also attached). This seems like the same issue as #4624 and #4632, but those have in theory been fixed now.

Enabling UMU fixes this, but introduces another issue since I'm using Flatpak + Gamescope (see Open-Wine-Components/umu-launcher#269).

heroic.log13.67KB

game.log7.88KB

awake-maroon•7/16/25, 4:23 PM

just curious, why do you want to disable umu? it's intentionally made to make ge-proton run properly outside steam

moderate-tomatoOP•7/16/25, 4:24 PM

Enabling UMU fixes this, but introduces another issue since I'm using Flatpak + Gamescope (see Open-Wine-Components/umu-launcher#269).

moderate-tomatoOP•7/16/25, 4:25 PM

I guess this means I'm running an unsupported configuration, so maybe I'm just out of luck.

awake-maroon•7/16/25, 4:26 PM

yeah, sounds like an unsupported config, but in any case, it's not a heroic bug, it's either proton or umu issues

awake-maroon•7/16/25, 4:27 PM

you could try using wine-ge which does not use umu

awake-maroon•7/16/25, 4:27 PM

but it's really outdated

moderate-tomatoOP•7/16/25, 4:31 PM

yeah that's why I switched away from it. i guess i can go back, i don't remember there being any issues with it.

moderate-tomatoOP•7/16/25, 4:31 PM

thanks ig

dry-scarlet•7/16/25, 4:49 PM

if there's no issues there's not really a reason to change imo

moderate-tomatoOP•7/16/25, 4:50 PM

:p I like shiny things

Error running games with UMU disabled.

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