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-   -   Odd problem with UT and, I assume, Open GL (https://www.linuxquestions.org/questions/linux-games-33/odd-problem-with-ut-and-i-assume-open-gl-225862/)

jasarien 09-02-2004 04:30 PM
Odd problem with UT and, I assume, Open GL
 
I used the linux installer to install UT:GOTY edition onto my fedora 2 box. It ran ok the first time, albeit a few resolution errors. It loaded up in 640x480 and with the screen dimensions out of proprotion. I tried to change it to 1024x768 (i have a geforce fx 5200 128mb) and it got slightly worse, you could see the scanlines, and it was flickering, and completely out of sync. And when I try and change it back to 640x480, it gets EVEN worse. Same but with a lot more flickering and scanlines. You know the kind when a monitor doesn't support a selected resolution? - Well anyway. I tried to ignore that and restarted UT via the terminal, too see if there were any errors before it started, I couldn't find any. and it started again in 640x 480 again in its distorted screen looking kind of way, and it played fine.

But now, the next day, after restarting my machine, UT is complaining that it can't find a matching GLX visual. Here's the whole thing:

Code:
Initializing SDLGLDrv...
binding libGL.so.1
Resizing SDL viewport. X: 1024 Y: 768
OpenGL
Xlib:  extension "GLX" missing on display ":0.0".
Xlib:  extension "GLX" missing on display ":0.0".
appError called:
Couldn't set video mode: Couldn't find matching GLX visual
 
Executing UObject::StaticShutdownAfterError
Executing USDLClient::ShutdownAfterError
Executing USDLViewport::ShutdownAfterError
USDLGLRenderDevice::ShutdownAfterError
Signal: SIGIOT [iot trap]
Aborting.
Now I've googled this and looked around a few forums, only to find that people are saying "Open GL isn't installed!" Which isn't true in my case, since I play Wolfenstein: Enemy Territory and that works find with Open GL. So my question is - Whats going on here?"

bobwall 09-02-2004 04:41 PM
It might be that you changed the display settings to UT to a mode for which GLX can't find an appropriate visual (same as when on Windows, the video hardware can't support a specific mode)
There might be a parameter for starting UT in safe mode. If not, try editing the configuration files in <Unreal dir>/System (i.e. change the display settinsg).

jasarien 09-02-2004 05:00 PM
Thanks Bobwall, but after I made that post i was checking my xorg.conf and found that it had been reset. O.o. I don't know how or when or why. But thats the reason it couldn't load Open GL. Because X didn't load my nVidia drivers. Stupid thing. Sorry for any trouble :S


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