protonscr

DLSS FG Regression in Proton 10 Beta and Experimental / Bleeding Edge

protonopen Regression
ValveSoftware/Proton#8692 · opened 2025-05-13 by SimpleHeuristics · updated 2026-05-09 · 1 comments · github
1 matching comments, n / p to jump
SSimpleHeuristics 2025-05-13 github

Games Affected

  • Cyberpunk 2077
  • Assassin's Creed Shadows
  • Ratchet and Clank Rift Apart
  • Starfield

System Information

  • GPU: RTX 5090
  • Video driver version: Nvidia 570.144
  • Kernel version: Linux 6.14.4-104.bazzite.fc42.x86_64
  • Link to full system information report as Gist:
  • Proton version: Experimental (Bleeding Edge), 10.1 beta

I confirm:

  • [X] that I haven't found an existing compatibility report for this game. (there are various individual reports in games but this seems to be widespread regression)
  • [X] that I have checked whether there are updates for my system available.

CP2077 Proton 10 and 9 Logs.zip

Symptoms

The above games were all previously allowing for DLSS FG to be enabled with this system and driver version without issue on Proton 10 beta and experimental until the last few days. Most of these games also worked previously on Proton 9 versions.

Since the latest proton 10 beta and experimental / bleeding edge as of May 11 (when I noticed at least) frame generation has been completely omitted from these games' menus.

Reverting to Proton 9.0-4 when launching will give the option for frame generation back (I have attached CP2077 logs as other games such as AC shadows has prevented me from testing further from activation limits)

CP2077 happens to crash with Proton 9.0-4 with FG enabled, but with proton hotfix it launches with FG and works appropriately. Switching back to Proton Experimental or the 10.1 beta results in the FG option disappearing again.

This happens with the above games that I have listed, all of which where FG worked previously.

Reproduction

See above.

Potentially Related Issues

Additionally there are other games where DLSS Features should work (given that they work in other games) but the options are also not exposed.

  • Spider Man 2 - DLSS FG and DLSS Ray Reconstruction are greyed out Seen Here
  • Star Wards Outlaws - DLSS FG not available
FFullerite 2026-05-09 github

Same for me. Frame gen toggle is available in witcher 3 with proton 9.0.4, but greyed out with experimental/10.0.4

Proton versions

Upstream links