LINUX - VAC was unable to verify your game session for over a week now. Have tried everything to fix it.

[I-Percy]

Your system information

• System information from steam (Steam -> Help -> System Information) in a gist:

• Have you checked for system updates?: [Yes] and OS updates too.

See attached file. GitHub says it's too long.
test.txt

Please describe your issue in as much detail as possible:

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

I have been trying to play this game on Arch Linux for a week+ but I keep getting the same VAC error when trying to join a game. I am running it natively without proton but I think the game still thinks I'm running proton for some reason? Not sure though as I can't get logs anywhere that can help me diagnose it.

I have tried reinstalling steam, reinstalling CS, removing all proton games, removing the ability to use proton, removing all of my configs, resetting my steam name and pfp, removing shader cache, removing steam overlay, removing steam cloud, removing everything. Nothing works. I swear if it's been listed as a 'solution' online, I have tried it. I've been trying something new every day since this happened and I still can't play a game of DM even.

Steps for reproducing this issue:

1. Launch CS on Arch Linux
2. Try to join an online gamemode
3. Get the message again

[geez0x1]

Can confirm on my (Ubuntu 24.04.1) machine on which I've been playing cs2 for ages. Just suddenly stopped working. Last match was Friday Jan 3rd, so somewhere between then and about two days ago.

See also another report here:
https://www.reddit.com/r/linux_gaming/comments/1hvj302/cs2_vac_was_unable_to_verify_your_game_session/

[NailLegProcessorDivide]

I am also experiencing this, Installed Arch Dec 16th, CS2 worked flawlessly up until Jan 2nd, unable to queue because of the above VAC error since.

Steam System Info: https://gist.github.com/NailLegProcessorDivide/5846ce6e4172ab07ff0a047e5a4450e3

Fully up to date Arch install and have tried:

• verifying game files
• Clearing download cache in steam
• Reinstalling CS
• Relogging into Steam

[I-Percy]

Update: Seems to work now. Not sure if today's update fixed it or if it was just the amount of time but I can finally play again.

[I-Percy]

I closed it because it worked for one game. Now it is back again and kicked me from the game