shift+alt+f12 when in game to turn off compositor doesnt help?

well note to self ctrl alt f12 wasnt a nice key combo, but shift alt f12 didnt seem to do anything, tho i shutdown the game to install obs studio and try to record how bad the stutter was, when i reloaded the game the stutter was better first race i did no stutter, second race 2 or 3 times and the 3rd race also 2 or 3 times, so i dont know if shift alt f12 and then rebooting the game helped, or if installing obs studio helped or just hitting the record button help idk, but it is better, still could use some improvement tho

doesn't stutter for me it is butter smooth in fact. I don't use any tweaks. What is your hardware?, remember that on Linux, with Proton, you get a performance penalty of upto 30 ish percent depends on the game.
Also I don't mess with the graphics settings at all, I'm using what the game defaults to, which sometimes are very low graphics settings.
(Also you need Proton Experimental for this game, you have to right click on the game select properties and choose Proton Experimental in the compatibility tab)(you can search in the articles on the site, on how to install proton experimental)

Last edited by Koopacabras on 23 October 2021 at 3:58 pm UTC

hi The_Aquabat, I dont think its my hardware, but i got a amd 3900x, 32gb memory, AMD 6600XT, and ssds all around, I am using proton experimental, the only thing i can think of is theres some dependency im missing, and also performance getts better with OBS running, which is weird. as far as what i have done so far, is i followed the lutris docs to install wine and gpu drivers, i installed gamemode, and i went through boilingsteams guide as well, and ive search google, i just cant figure out whats causing this issue, ive reinstalled mint after trying out garuda, i accidentally deleted the wrong partition, nvme1 vs nvme0 an easy over look for someone with mild dyslexia, but i did try garuda and then reinstalled mint which im on a fresh install. i havent tried any other distro i like mint cause it feels to run smoother compared to other distros ive tried. i could start installing others i suppose just to try them out for the game but it would be a shame if i cant get it to run smoothly on mint.
i suppose i could try ubuntu with wayland since i did ad wayland to my garuda kde, maybe thats the magic trick

Did you get the stutter when you tried it with Lutris and normal wine? That could rule out it being a Steam Proton specific issue if it stutters for both.

wel i tested lutris and still same issue and cant get wine to work with dirt 5 keeps asking to have steam open which i have open. i see The_Aquabat is running kubuntu according to their profile, im going to install kubuntu and another partition and see if its mint, cause garuda was better but mint has the stutter, so it makes me believe its something on mint side but we will see.

well I installed kubuntu still have stuttering, then i installed arch linux which took me many many hours but it was a learning process which i really enjoyed :) but i still have the stuttering, i ran benchmarks and frame rated droped to 1 during the stutter, i can say dirt 5 is running better on arch then on mint or kubuntu, but still stuttering tho halfway playable. i made a youtube video to show the stuttering. https://youtu.be/ndi1t8fi-Ps

im going to tell everyone what i do to game, and you can feel free to tell me i missed something, im going to write what i did for kubuntu and mint which are similar, and easier to write and not as in depth as arch is :)

ok, after installation, i first install drivers using lutris docs guide
https://github.com/lutris/docs/blob/master/InstallingDrivers.md

then i install wine again using lutris docs guide
https://github.com/lutris/docs/blob/master/WineDependencies.md

then i use the guide from feralinteractive for gamemode
https://github.com/FeralInteractive/gamemode

then i install steam
install the game through steam and thats pretty much it, i do some other stuff like installing a browser, discord, spotify, and any other software i need, and i spend alot of time customizing the looks of kde, i didn't do that in the video since i only installed arch to see if i could get it to to run without stutter but no luck so no need to keep arch installed.

if i missed anything please please let me know this is driving me crazy, all my other games run fine its just this game which is weird.

Are you sure it isn't the usual shader compiler stuff? Do you get less stutters if you re-run the game with the same settings/car/track/weather etc?

Quoting: whizseAre you sure it isn't the usual shader compiler stuff? Do you get less stutters if you re-run the game with the same settings/car/track/weather etc?

nope ive ran it a few times and still same issue, i was going to try other kernals but it seems i got banned for 24 hours lol so cant try anything new till then

Last edited by Samantha on 24 October 2021 at 7:43 pm UTC

You don't need to follow boiling steam guide anymore. It works OOTB with proton experimental. Also I use kisak ppa, that might help too.
https://launchpad.net/~kisak/+archive/ubuntu/kisak-mesa

But if you are running it on Arch based distros, which normally have more updated drivers, then I don't know what is your problem. As I said for me it runs fine with no tweaks needed with proton experimental. Maybe it's a regression in the Amdgpu driver but only affecting RDNA2 GPUS, could be that once I hit a performance bug on Desperados III that only happened on RDNA1 Gpus.
Maybe trying installing amdvlk driver is worth a shot. (it's an alternative driver to the default one for amd Gpus)
here you can download a deb package...

https://github.com/GPUOpen-Drivers/AMDVLK/releases/tag/v-2021.Q3.7

simply install with dpkg -i file.deb

then you have to add this to the launch options of the game

 VK_ICD_FILENAMES="/usr/share/vulkan/icd.d/amd_icd64.json" %command%
installing MANGOHUD could help too since that way it tells you what driver you are running, amdvlk or radv.

if it is really a bug on RDNA2 driver then you might want to report it, since the steam deck runs on RDNA2, I think that valve devs will look into this with a lot of interest.

(Also your card is a little faster than mine so it's not a problem with the hardware.)

Last edited by Koopacabras on 25 October 2021 at 8:56 am UTC