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graphic artifacts on zandronum linux opengl

Posted: Sun Nov 03, 2013 11:06 pm
by ermacaz
Hi,

I'm getting some graphic artifacts when using openGL on linux.

Using Zandronum v1.2 - SVN revision 130826-1853 - SDL version
Intel integrated graphics (on a I-520M)
OpenGL mesa 9.1.7

Here are several screenshots of what I am seeing
http://imgur.com/a/U1Kf6

And my zandronum.ini
http://pastebin.com/5LHN5N2P

This is the first time I have used zandronum on a linux machine so I am not sure if this is just a general problem with doom opengl on linux or just something I have configured incorrectly

Thanks

RE: graphic artifacts on zandronum linux opengl

Posted: Sun Nov 03, 2013 11:18 pm
by Ænima
ermacaz wrote: Intel integrated graphics
Well there's your problem.

If it's not that, then it may be a buffering problem. Other than that, I really have no idea so you're better off waiting for someone like -=Dark-Slayer=- to respond since he's more knowledgeable about vid hardware.

RE: graphic artifacts on zandronum linux opengl

Posted: Sun Nov 03, 2013 11:23 pm
by infurnus
  • Go to the menu: Options -> Display Options -> OpenGL Options
  • Ensure that Rendering Quality is set to Quality and not Speed

RE: graphic artifacts on zandronum linux opengl

Posted: Mon Nov 04, 2013 1:33 am
by ermacaz
Hi,

I do have rendering quality set to quality.

This is actually a laptop with both integrated and a dedicated radeon 5650. I usually keep the radeon off as it kills the battery on linux but I just tried switching to radeon only and I still have the graphics issue. Zandronum runs fine on windows on the same machine so it doesn't seem to be a hardware problem.

RE: graphic artifacts on zandronum linux opengl

Posted: Thu Nov 07, 2013 1:02 am
by infurnus
Hmm, sounds like it could be a driver issue. Do you know if there's a way to configure performance/power driver settings in Linux, like there is in Windows?

RE: graphic artifacts on zandronum linux opengl

Posted: Sun Nov 10, 2013 4:05 am
by ermacaz
infurnus wrote: Hmm, sounds like it could be a driver issue. Do you know if there's a way to configure performance/power driver settings in Linux, like there is in Windows?

Not that I know of but I can say with Windows booted and Intel driver set to power save mode there are no artifacts