1nsanie
Published
No instability or smth. Used in-game settings to tweak FSR2 and whatnot. Everything works well out-of-the-box.
Split-screen local play works as intended
I don't have it in Steam so I used Heroic launcher to log into my GOG account and it was a smooth ride - selected custom Proton, run through Steam. Can't wish for better gaming on Linux, honestly.
Input lag and frametime is improved dramatically with these options in 20-amdgpu.conf (give you use amdgpu driver):
Option "TearFree" "false"
Option "EnablePageFlip" "false"
Goes without saying you have to enable FreeSync/VRR manually in the same config:
Option "VariableRefresh" "true"
As was noted by other users, the game fails to recognize both Xbox os PS controllers. You have to link libSDL2-2.0 against the one in /usr/lib instead of the shipped one.
MANGOHUD_CONFIG="fps_limit=160,no_display=1" mangohud %command%
Game fails to exit properly since last patch. Had to go and close it from steam. Saves are not getting corrupted luckily.
The game detected my dGPU just fine, was pushing over 500+ fps. The only way to limit it without resorting to vsync is to use third-party tools like mangohud. Hence these launch options.
Seamless experience
Work perfect out-of-the-box. Just a casual reminder to disable compositor to gain additional 10% fps.
DXVK_ASYNC=1 PROTON_NO_ESYNC=1 %command% -dx12
Dx12 version works much better than on Windows and has much less overhead. Enable async for better shaders calc, disable any software sync and compositor(!!!) to reduce input lag.
Lower average FPS
Split screen works as intended
Unlike on Windows, it has less FPS spikes and stutters due to better CPU utilization. Gameplay is buttery smooth. But for some reason overall average FPS is about 10-15% lower. May be it can be alleviated with some RADV_PERFTEST options but aware that gpl one won't let the game start at all.
Since the game's launcher is not working, you have to go to HKCU (user.reg) and find [Software\\Ubisoft\\Prince of Persia\\1.0\\Engine]. Here change AA to 2 and resolution to your resolution in hex.
Shadows are steppy.
First of all, the launcher is not working. But you can still run the game via other binary which is Prince of Persia.exe, one level above the Launcher folder that the default Launcher.exe is stored in. The settings can be edited in the registry.
-dx12
Fur/shadows fuzziness
Uneven frametime, stutters
Should only be played with -dx12. DirectX performance is quite inconsistent across platforms:
Windows dx11: Native performance/quality
Windows dx12: Borked performance/quality: awful fur artifacts, 4-5 times less FPS, unblayable
Linux dx11: Noticeable performance impact, stutters
Linux dx12: Weird fur/shadows, but nearly native performance
Runs out of box completely fine. Due to the alpha (demo) state the game has some slightly exaggerated visual artifacts that are common to antialiasing (TAA) and upscaling (FSR), mostly visible in water and in small particles.
Note that the demo has disclaimers about possible visual glitches and this will be outdated by release time.
About ~7% fps hit
Tested both LInux and Windows with the same clocks and power limits:
Windows got ~80 fps
Linux got ~74 fps
I'll take it.
Works perfect, better than on Windows.
Windows experiences huge CPU overhead with Valheim. While it still exists on Linux, it's less pronounced.
