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Question about AGP

ikon Opus
Registered User
Join date: 18 May 2006
Posts: 9
05-19-2006 15:57
In the preferences menu under 'Adv. Graphics' the box that says 'AGP graphics acceleration in shadowed out so i cant select it, and under that it says my card has 16mb of memory when it really has 128mb. Is this why alot of stuff renders slow? My video card is a GeForce fx 5200 ultra running in agp4x.
Sam Darrow
Registered User
Join date: 15 Apr 2006
Posts: 10
05-19-2006 17:02
Yah that would be why it's running slow. But even if it was working 128mb isn't that much, i'd recommend you upgrade but thats just my opinion.

I don't know about your other problems though.
Hello Toonie
Registered User
Join date: 25 Jul 2005
Posts: 212
05-20-2006 00:09
I recently upgraded my machine, and although the Linux client used to be faster on the old machine, the win32 client under WINE is now about 40% faster. This is all thanks to the 'use AGP' option under the win32 client - if I don't check it, both versions now run about the same speed.

I actually have almost no idea what this option technically does, but it sure helps.

(And I'm not even strictly on AGP! I have one of those 'fake AGP' AGI mobos.)
Theora Aquitaine
Registered User
Join date: 12 Feb 2006
Posts: 266
05-20-2006 05:42
The slow rendering is nothing to do with AGP AFAIK. Things take a _long_ time to rez in the linux client, but this is due to problems with memory caching etc. AGP is broken at the moment in the Linux client tho. You can edit your config file to say that your gfx card has 512MB RAM which will speed things up a tiny bit.
Hello Toonie
Registered User
Join date: 25 Jul 2005
Posts: 212
05-21-2006 01:52
The OP didn't say anything about rezzing, just rendering. The AGP option can certainly affect the latter.

Of course, anyone waiting for textures to rez nicely on the Linux client is currently doomed...
Darkside Eldrich
Registered User
Join date: 10 Feb 2006
Posts: 200
05-21-2006 10:50
From: ikon Opus
In the preferences menu under 'Adv. Graphics' the box that says 'AGP graphics acceleration in shadowed out so i cant select it, and under that it says my card has 16mb of memory when it really has 128mb. Is this why alot of stuff renders slow? My video card is a GeForce fx 5200 ultra running in agp4x.

The AGP bus has a lot of optimizations specifically for graphics, without the AGP Graphics Acceleration (as mentioned, borked in Linux), your AGP card (even if it's onboard, by the way, it's still on an AGP bus, with the aforementioned optimizations, so it IS "real" AGP) will run as if it were on a PCI bus, basically (it's still faster, because it's on it's own bus, but it doesn't get a lot of optimizations it otherwise would).

The 16 Mb thing can be fixed, though. Look around this forum for the exact details, but basically, add
GraphicsMemorySetting 3
or something like that, to your settings.ini

Hope some of this was useful.
Theora Aquitaine
Registered User
Join date: 12 Feb 2006
Posts: 266
05-21-2006 12:53
From: Hello Toonie
The OP didn't say anything about rezzing, just rendering. The AGP option can certainly affect the latter.


Well pointed out.. My post was sloppy. I just thought the OP may have meant rezzing rather than rendering, because you don't really "see" slow rendering, just reduced framerates.
Angel Sunset
Linutic
Join date: 7 Apr 2005
Posts: 636
05-22-2006 08:00
The BIG difference with AGP comes in if it is activated in X at all. In /proc/driver/... somewhere, is an AGP entry. With NVidia, it is /proc/driver/nvidia/agp/status, type "cat /proc/driver/nvidia/agp/status". That tells you if AGP is active, and which speed, e.g:

Status: Enabled
Driver: AGPGART
AGP Rate: 4x
Fast Writes: Enabled
SBA: Enabled

If it is NOT enabled here, you can lose 50% of your framerate :p

I also can't check the AGP box in the Linux Client, so I don't know if that would speed things up some more...
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Kubuntu Intrepid 8.10, KDE, linux 2.6.27-11, X.Org 11.0, server glx vendor: NVIDIA Corporation, server glx version: 1.5.2, OpenGL vendor: NVIDIA Corporation, OpenGL renderer: GeForce 9800 GTX+/PCI/SSE2, OpenGL version: 3.0.0 NVIDIA 180.29, glu version: 1.3, NVidia GEForce 9800 GTX+ 512 MB, Intel Core 2 Duo, Mem: 3371368k , Swap: 2570360k