HGL
equal-aqua
Unable to start Returnal on Epic Games Through Heroic
Hello all, I would really appreciate some help with this.
No matter what I do I can't seem to get the game to actually start. It shows launching but then after awhile it just stops. i am using bazzite and it does not worki in gamemode or desktop mode.
I am also unable to find any logs but I might just not know where to look




26 Replies
To help you, we need a game log. Please see the following images on how to get it.






equal-aquaOP•3mo ago
Thank you. Here is the log
https://0x0.st/KbBZ.log
grumpy-cyan•3mo ago
wineserver: NTSync up and running!Can you try without ntsync?
equal-aquaOP•3mo ago
Dumb question but where do i find that. On wine settings I see fsync and esync
grumpy-cyan•3mo ago
PROTON_USE_NTSYNC=0
In env vars
Game page-settings- Advancedgrumpy-cyan•3mo ago

grumpy-cyan•3mo ago
copy paste in here
Then click to + button
equal-aquaOP•3mo ago
Like this?

grumpy-cyan•3mo ago
yes
click to +
equal-aquaOP•3mo ago
https://0x0.st/KbBL.log
That didn't do it unfortunately.
grumpy-cyan•3mo ago
"disableUMU": truewhy set to true tho? But yes, i focused on ntsycn because it is no complete yet
equal-aquaOP•3mo ago
I think I was trying things before to fix it. I just unchecked it in game settings but still no luck.
No worries, i appreciate the help
grumpy-cyan•3mo ago
Just try with Proton Experimental and PROTON_LOG=1 then
grumpy-cyan•3mo ago

grumpy-cyan•3mo ago
This should create a log called steam-heroic0
Which should have more info
equal-aquaOP•3mo ago
https://0x0.st/KbBJ.log
Any idea what the file path would be for this?
grumpy-cyan•3mo ago
Home partition
If not there then in .var, heroic related dirs
equal-aquaOP•3mo ago
equal-aquaOP•3mo ago
Seems to be the same overall error code
0150:err:service:device_notify_proc failed to get event, error 1726
grumpy-cyan•3mo ago
https://discord.com/channels/812703221789097985/1377286400478544055/1378412214297559192
Hmm, i guess it really needs a full go through Epic Launcher way to launch at all.
equal-aquaOP•3mo ago
Unfortunate. Just my luck haha
My first and only epic game and it doesn't work. I dual boot so i guess windows it is.
grumpy-cyan•3mo ago
Yep, seems to be more viable.
continuing-cyan•3mo ago
I wonder if this is one of those cases where the game actually checks if there's an
EpicGamesLauncher.exe file launching it
maybe try adding the env variable USE_FAKE_EPIC_EXE=true, doesn't hurt to try, we use that for Rockstar games that look for that specific executableequal-aquaOP•3mo ago
Thanks, I'll give it a go in a bit
conscious-sapphire•3mo ago
I don't know about OP, but this did it for me. Thank you
equal-aquaOP•3mo ago
Ended up giving up and going back to windows but since that did it for someone else I'll close the post. I'll definitely try it if I go back over to bazzite
Thanks to everyone for the help!