I have this bug more than one month.
It has been already reported: https://github.com/ValveSoftware/steam-for-linux/issues/407
TF2 hangs on "loading ..." after it loads 351.4MB to RAM.
I can't get to main menu. I waited more than 30 minutes, but when it stops loading to RAM at 351.4MB, it's permanently freezed = I have to kill it.
I starts on 15-30 attempt.
This makes the Linux version totally unplayable for me, I don't have more nerves for it - start, kill, start, kill, start kill.... If I want to play it with my friends, I can't, because they are waiting for me 30-45 minutes.
If think it does not happen on AMD 12.10. Anyway I can't downgrade from 12.11 beta11, because my kernel is not supported on 12.10.
So, please, is there any solution?