So maybe a year or so ago I was running windows 10 on my PC, and I picked up Deathloop on Steam. I installed it, but waited too long to try to play it, so I couldn’t get my money back when it refused to run. I tried uninstalling, reinstalling, driver updates, and OS updates to no avail. When launching the game, it would do nothing.

About 6 months ago I got fed up with Windows and installed Fedora on my PC instead. Yesterday, just for the heck of it I decided to install Deathloop since it was still in my library… and it ran just fine!

TLDR- Deathloop wouldn’t run on Windows 10 at all, but runs fine on Fedora.

So as the title says, I came back to play BG3 after like half a year absence and I'm having the strangest, and fairly replicable crash I've ever seen in a game. I'm on an Arch-based system and I never had any problems playing it, even modded, on EndeavourOS before, as well as Fedora 41, Fedora 42, Linux Mint or a few others.

So for some reason, once I get to around Shadowheart on the Nautiloid, the game starts very consistently hanging after hovering over items in the inventory. It seems to happen when the item's context menu drops down. After which, the game hard freezes, it starts usually having a weird 1-2 second audio feedback loop of whatever sound was playing, the primary monitor goes black (although the second one will also go black if I focus it by moving the mouse over during this), and then the part has truly baffled me. I'll get a notification of a display configuration reset from KDE Plasma and, very specifically: my browser, Obsidian notes if it's open, Steam, and Discord will all quietly CTD as well.

The important thing is it's specifically those programs that have made this the first time I've been completely lost troubleshooting. I thought that maybe it had something to do with GPU acceleration being on in those programs, but Steam still did it once it was off and I'd find it weird if Obsidian had that (should also be noted all of these are native, non-Flatpaks too).

As for any specifics of what I'm running/what I've tried:

• The game is using Proton GE 10-21 (the most recent), but I tried it with 10-20, Proton Experimental, and downloaded CachyOS' just to try with no difference.
• My GPU is an AMD 9070 XT. 128GB RAM. Ryzen 9 7950X CPU.
• I have verified the game's integrity.
• Steam launch options I've tried are: WINEDLLOVERRIDES="DWrite,BG3WASD,BG3NativeCameraTweaks=n,b" %command% --skip-launcher --vulkan
• WINEDLLOVERRIDES="DWrite,BG3WASD,BG3NativeCameraTweaks=n,b" %command% --skip-launcher --dx11
• WINEDLLOVERRIDES="DWrite,BG3WASD,BG3NativeCameraTweaks=n,b" PROTON_ENABLE_WAYLAND=1 PROTON_ENABLE_HDR=1 %command% --skip-launcher

Whether Vulkan or Direct X, I haven't noticed a difference. I don't know if there's a preference these days. I do know that even Linux users were recommending against Vulkan when the game first released though because it was implemented so poorly. Other than that, I can't think of more information to add that would be useful to identifying the problem

I am on Debian 12, RTX 4070, ryzen 9 5900x.

I just cannot get the game to run properly. Using anything but proton 10 beta it will just refuse to get past the launcher, and proton 10 will get it right past that to the splash screen where it then crashes immediately. Windows users have managed to get further by setting the game's exe to be 'Run as administrator'. I tried GE-Proton, same issues.

How do i approach this ? Has anyone managed to get it to run, and if so how ?