protonscr

"Force the use of" -> "Steam Linux Runtime 1.0 (scout)" should not be possible for games that require sniper v2

steamopen Steam clientDistro Family: Arch
ValveSoftware/steam-for-linux#13484 · opened 2026-08-05 by Oxygels · updated 2026-08-10 · 2 comments · github
OOxygels 2026-08-05 github

Your system information

  • Steam client version (build number or date):
    1785799196
  • Distribution (e.g. Ubuntu):
    Arch
  • Opted into Steam client beta?: [Yes/No]
    No
  • Have you checked for system updates?: [Yes/No]
    Yes
  • Steam Logs: [generate by running this command in a terminal tar -zcvf ~/Desktop/steam-logs.tar.gz ~/.steam/steam/logs]
  • GPU: Nvidia/Intel/AMD

Please describe your issue in as much detail as possible:

Describe what you expected should happen and what did happen. Please link any large code pastes as a Github Gist

Steps for reproducing this issue:

  1. Tick force the use of a specific Steam Play Proton Compatibility tools
  2. Select Scout (1.0)
  3. The game doesnt start cause it requires Sniper (3.0)

This issue was apparently fixed in https://github.com/ValveSoftware/steam-for-linux/issues/9844 but still had it today
The solution is to not tick this option but I just wanted to report that regarding this issue, it might not be fixed :/

Thanks anyway for all your work!

OOxygels 2026-08-05 github

As you can see I can still pick it
Image

Ssmcv 2026-08-06 github

Yes, that seems like a bug equivalent to #9844 has come back. The Steam public beta also has this issue. Relatedly, if I check the box for "Force the use of..." on CS2, I am not offered SLR 3 as a choice, which also seems wrong.

  • Steps to reproduce:
    1. Choose a game that requires SLR 3 (sniper): Counter-Strike 2, Dota 2, Endless Sky, Retroarch, etc.
    2. Properties -> Compatibility -> "Force the use of..."
    3. Look through the list
  • Expected result: The list contains SLR 3 and various versions of Proton. It does not include SLR 1, Legacy Steam Runtime or any other version of SLR.
  • Actual result: The list contains SLR 1, Legacy Steam Runtime and various versions of Proton. It does not include SLR 3.

There seems to be an equivalent bug for games that require SLR 4:

  • Steps to reproduce:
    1. Choose a game that requires SLR 4, like Maelstrom
    2. Properties -> Compatibility -> "Force the use of..."
    3. Look through the list
  • Expected result: The list contains SLR 4 and various versions of Proton. It does not include SLR 1, Legacy Steam Runtime or any other version of SLR.
  • Actual result: The list contains SLR 1, Legacy Steam Runtime and various versions of Proton. It does not include SLR 4.

(Tracked as steamrt/tasks#1116 internally)

Upstream links