Hello @se5a, sounds like you encountered https://github.com/ValveSoftware/steam-for-linux/issues/6046 when trying to troubleshoot this. You may have better luck getting a log by completely closing steam, then running PROTON_LOG=1 steam from a terminal.
Thankyou very much for the quick reply.
what options do I have here at the command line, it apears that it's trying to run it under steam linux runtime rather than Proton?
this is my term output:
PROTON_LOG=1 steam Aurora.exe
Running Steam on linuxmint 19 64-bit
STEAM_RUNTIME is enabled automatically
Pins up-to-date!
/home/se5a/.steam/ubuntu12_32/steam Aurora.exe
It also looks like it's trying to run it from the wrong place too. (I ran the above command in the game's directory) I guess I'm missing some arguments here.
OOps, I completely misunderstood, I'm booting steam, rather than trying to boot the game via steam from the term.
Here's the log:
https://gist.github.com/se5a/ee2c815d295d3210493437fa4e5880b3
Looks like Proton is failing from missing dependencies (the lines in the log with No such file or directory), which usually is provided by the steam-runtime, and points towards https://github.com/ValveSoftware/steam-for-linux/issues/6475.
Proton 5.0.6, the game is Aurora 4x
OS is Linux Mint 19
I've added the executable to steam as a non steam game.
In steam properties for the game, I've 'Force use of Proton' 5.0.6.
Click Play, a ui box flicks up and immediately disappears.
Added PROTON_LOG=1 %command% to the launch options.
Click Play, check home folder, no new logs have been created.
I've checked that the executable has permissions to 'allow executing file as a program'
I've checked the path, everything looks good there.
I can run the game natively with some mono hacks (so I know it does run), which is my preferred way of running the game, however there's a few bugs which are forcing me to find an alternative.
I've copied the path from the steam properties, and run it from the command line, so I know the path is correct.
It appears that steam is failing even before proton gets a chance to create a log. it looks like steam is popping up an error dialog and immediately closing it.
I've even tested with another proton game to ensure that I'm looking for the log in the right place (I am)