demo_viewer - for pre 2013/1/9 demos dont work

[tskxz]

• System information from steam in a gist: https://gist.github.com/tanjilk/a15210f9c81c1d41171bddf42cbb9c16

• Have you checked for system updates?: Yes

Please describe your issue in as much detail as possible:

Hello, id like to play the old csgo selecting the beta as here

I forced the use of specific Steam Play compatibility tool with Steam Linux Runtime as here

And if i run the game it appears that

Also, i tried with all proton versions

And if i run the game with proton, i recieve an blank screen and it exits after like 30 seconds.

[kisak-valve]

Hello @tanjilk, just like #2176, this predates linux support for CS:GO and we're tracking issues with game run with Proton in the Proton issue tracker, so I've gone ahead and transferred this issue report to ValveSoftware/Proton#2704 (comment).