Disabling anti aliasing on gmod through launch options or cfg file (linux)

[mcjohnalds]

After installing the official ATI linux drivers (Gmod gave an "OpenGL outdated" error with the default fglrx packages on Ubuntu 12.04), gmod ran and loaded a map with no problems at all with all my addons enabled, which was pretty astonishing. But then the AA was disabled so I tried to set it up to 2x and it froze, now when I start gmod I get a steam popup box with an error message that says:

[QUOTE]Failed to create OpenGL device!
Error 0xFFFFFFFF

Please see the following for more info.
support.steampowered.com/cgi-bin/steampowered.cfg/php/enduser/std_adp.php?p_faqid=772[/QUOTE]

And then I press "OK" and it closes. I've tried what's on the steam page to no avail, so how do I disable anti aliasing in the config/config.cfg or with the launch options? I've tried clearing my addons folder, deleting my config folder, verifying game cache, putting [I]mat_antialias "0"[/I] and [I]mat_aaquality "0"[/I] into the config.cfg, putting [I]-dxlevel 81[/I] in the launch options and using the dev branch with no effect. There are no .mdmp files anywhere.

Sorry if this is the wrong forum.

[Walrus Viking]

-nomsaa I think.

Boxes if I'm wrong plx thanx.

[mcjohnalds]

Tried it, still crashed, thanks anyway. Maybe it's a different problem, I guess the linux version might still be too glitchy to use :(.

Also I have no idea what "boxes" are.