What drivers are you using?

This is a known issue unfortunately. 'gamoverlayui' in the 'Steam/ubuntu12_32/' directory needs to run under the Nvidia card. I personally have not found a way of launching it without it quitting out only a few seconds later. Kudos to anyone who can come up with a workaround though it may just not be possible at the moment.

Quite a few people have reported different locations for Steam. I am guessing Valve keeps changing the location for new installs. Great to see it works though!

I am going to lock this thread. If anyone has any problems please post it in the new forum.

Before you post here, check to see if the game runs with your integrated card. Also make sure to check and see if your problem isn't already listed in the Tips and Tricks forums.

When posting your problem make sure to include your distribution name and version, desktop environment, drivers, any console logs, and any scripts you may be using to run.

If a solution to your problem has been found please modify the thread name and add '[SOLVED]'.

Going to lock this topic. Anyone with problems should post in the new forum.

This error is almost always caused by an update with the game you are trying to play. Quickest and easiest way to fix this is to simply launch the game once in Steam.

Hello! Which script are you using? It sounds like you are either using the wrong steam_appid.txt (should be 520 for TF2 beta and NOT 440) or have none at all.

Oh and I should note that we are aware of the Steam overlay not working. No known fixes at the moment.

In whatever script you are using to launch TF2.

Have you tried using optirun instead of primusrun?

And, of course, is Primus correctly configured for the 310 drivers? Does something like glxspheres run with Primus without errors?