Go Back   nV News Forums > Linux Support Forums > NVIDIA Linux

Newegg Daily Deals

Reply
 
Thread Tools
Old 08-18-06, 03:04 AM   #1
Linuxhippy
Registered User
 
Join Date: Feb 2004
Posts: 585
Default Error when using NVEmulate :-/

Hi there,

Because I would like to play a bit with shaders on my GF460Go powered laptop I decided to give NVEmulate a try - just to see how/wether it works.

However when using NVEmulate, the engine I am using bails out with a strange error:
Quote:
org.lwjgl.opengl.OpenGLException: Invalid operation (1282)
at org.lwjgl.opengl.Util.checkGLError(Util.java:56)
at org.lwjgl.opengl.Display.swapBuffers(Display.java: 567)
at org.lwjgl.opengl.Display.update(Display.java:583)
at com.jme.renderer.lwjgl.LWJGLRenderer.displayBackBu ffer(Unknown Source)
at com.jme.app.BaseGame.start(Unknown Source)
at Terrain.main(Terrain.java:40)
lg Clemens
Linuxhippy is offline   Reply With Quote
Old 08-18-06, 04:31 AM   #2
Thunderbird
 
Join Date: Jul 2002
Location: Netherlands, Europe
Posts: 2,105
Default Re: Error when using NVEmulate :-/

I'm not sure what the old NVEmulate option for the xconfig file / the old environment variables still do. The NV-CONTROL api which is supported by nvidia-settngs and nvclock can set nvemulate aswell. Though nvidia-settings doesn't support it. You can use beta2 of nvclock (commandline version) to enable it aswell. It can be set to multiple values from geforce3(nv20)/geforce4(nv25) to geforcefx(nv30).
Thunderbird is offline   Reply With Quote
Old 08-18-06, 05:08 AM   #3
Linuxhippy
Registered User
 
Join Date: Feb 2004
Posts: 585
Default Re: Error when using NVEmulate :-/

How exactly an this be archieved?

I tried it with:
ce@cehost:~/nvclock0.8b2> src/nvclock -nvemulate nv30
ce@cehost:~/nvclock0.8b2> src/nvclock -nvemulate=nv30


However still the game engine I am playing with reports at startup:
18.08.2006 11:04:29 com.jme.scene.state.lwjgl.LWJGLShaderObjectsState checkProgramError
SCHWERWIEGEND: null

lg Clemens
Linuxhippy is offline   Reply With Quote
Old 08-18-06, 05:16 AM   #4
Thunderbird
 
Join Date: Jul 2002
Location: Netherlands, Europe
Posts: 2,105
Default Re: Error when using NVEmulate :-/

nvclock -l shows the nvcontrol options it supports. It should mention nvemulate in it aswell. Then using nvclock -q nvemulate you can ask what values are supported. The option can be enabled using nvemulate: nvclock -a nvemulate=30

Note that no matter what option you use for enabling nvemulate, check if the opengl renderer string has changed (check glxinfo for it).
Thunderbird is offline   Reply With Quote
Old 08-18-06, 05:26 AM   #5
Linuxhippy
Registered User
 
Join Date: Feb 2004
Posts: 585
Default Re: Error when using NVEmulate :-/

Thanks for the explanation, yes you're right "nvemulate" is listed as option and can be set and queried. When I set it to 30, nvclock tells me it is 30 when I do nclick -q nvemulate.

However my engine still does not work and the renderer string did not change either:
Code:
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce4 488 Go/AGP/SSE2
OpenGL version string: 1.5.6 NVIDIA 87.62
lg Clemens
Linuxhippy is offline   Reply With Quote
Old 08-18-06, 10:45 AM   #6
Linuxhippy
Registered User
 
Join Date: Feb 2004
Posts: 585
Default Re: Error when using NVEmulate :-/

I tried it on my "legacy" system which has a FX5200 built-in and there my demo works "perfectly". It seems nvemulate isn't working correctly :-/

Does anybody have a GF4MX card running and could also try wether it works or not - maybe its a bug in current drivers, could that be?

Thanks, lg Clemens
Linuxhippy is offline   Reply With Quote
Old 08-18-06, 03:31 PM   #7
AaronP
NVIDIA Corporation
 
AaronP's Avatar
 
Join Date: Mar 2005
Posts: 2,487
Default Re: Error when using NVEmulate :-/

NVEmulate isn't really supported any more, I'm afraid. You could try an older driver.
AaronP is offline   Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 12:03 PM.


Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 1998 - 2014, nV News.