barathron
Published
4k resolution uses 100% of my GPU, which I don't like, so I play in 1080p, and then it uses 50%.
The native Linux version doesn't have the new mod manager, but when I switched to Proton, the mod manager was just a black window and didn't work anyway. Once I skipped that, I also found that the Proton version had the same performance issue, so I think the game just isn't optimized well. Given the graphics, it should run better than it does. It's not a big complaint, though - the framerate is smooth and there were no other technical issues.
physx
It took a lot of tinkering to find that only Proton Experimental works. I normally use Proton GE, but that had the same problems as Wine and Wine GE - moving the camera with the mouse would cause a black screen, and cutscenes would go all black unless I moved the mouse every 3 seconds. Only Proton Experimental fixed this.
If you can't use Proton Experimental, I found that using Gamescope fixed the black screen, but it introduces a new problem I could never figure out - moving the camera with the mouse made the camera spin super fast. It was uncontrollabe, even with the camera sensitivity turned to 0.01 in the settings. To work around this issue, I'd recommend turning camera sensitivity to 0.0, which disables camera rotation via the mouse, and setting up keyboard controls to move/rotate the camera as desired. (Or just use Proton Experimental.)
For reference, I'm using a version purchased on GOG. I used the offline installers, because Heroic was unable to download all the files. So, this is DA:O version "1.05 GOG 0.8". Gog patches enable Large Address Aware support, and limit the game to 2 CPUs for stability, which I believe you need to fix manually with the Steam version. (You might be able to install the GOG patch onto the Steam version; not sure.)
WINEARCH=win64 DXVK_ASYNC=1 gamemoderun %command% -dx11
Slow to connect, but it was reliable.
Settings those launch options was mandatory, and I had to cobble them together from several ProtonDB reports. Before I figured that out, the game reliably crashed within a few minutes on two different computers.
Also, I recommend deleting Nuts/Content/Movies from the game's files so you don't have to watch the long opening credits every time.
