Gentoo couldn't fint matching GLX visual

[kamax]

Hi,

I have an error on my gentoo 64bits when i try to launch a game with springlobby:

Could not set video mode:
Couldn't find matching GLX visual

Any idea ?

[Auswaschbar]

Its possible that spring tries to use a resolution not supported by your graphics card. Please try open springsettings and change the resolution to something your card is capable of (your desktop resolution e.g.).

[kamax]

Changing the resolution give the same error. I have a nvidia 8600gt on a 19" screen with a common resolution 1024x768.
Glxgears works and direct rendering too, i can play other 3d game without problem.

I just follow the Spring wiki for gentoo for installing it:
-adding the overlay
-emerge spring springlobby spring-ota-content
-add user into game group
-download maps and mod from the online servers

Maybe i have missed something ?
I don't know if it's related but when i try to enter in a online party the consol show me always "error: didn't find the user" but i can still go in the "war room" but never start. But i suppose when i can it will give me the GLX error like when i want to start the singleplayer.

Any help is welcome.

[BrainDamage]

reduce anti aliasing to a sane value

[kamax]

I have tested with very low graphics option, windowed or not, 0 anti aliasing... always the error.

edit: i have a dual display with 2 screens, maybe it can come from here ?

[kamax]

Up...

[verb0ss]

Change your default Xserver depth to 24 bits in xorg.conf. This should solve problem.