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

Newegg Daily Deals

Reply
 
Thread Tools
Old 01-27-08, 05:25 PM   #1
geezer
Registered User
 
Join Date: Jul 2005
Posts: 59
Default Agpgart vs nvagp

I have never managed to get nvagp to work. It always falls back to agpgart whichever settings I try to use in xorg.conf, or however I compile my kernel.

This is with 2 cards - mx420 and now 6800GT and countless drivers.

What is the trick with getting nvagp to work? And would there be any benefits for games with it, or is agpgart just as good?
geezer is offline   Reply With Quote
Old 01-28-08, 02:25 AM   #2
krionius
Asus 8800GTS 320M
 
krionius's Avatar
 
Join Date: Jul 2003
Location: Budapest, HU
Posts: 249
Default Re: Agpgart vs nvagp

Quote:
Originally Posted by geezer
I have never managed to get nvagp to work. It always falls back to agpgart whichever settings I try to use in xorg.conf, or however I compile my kernel.

This is with 2 cards - mx420 and now 6800GT and countless drivers.

What is the trick with getting nvagp to work? And would there be any benefits for games with it, or is agpgart just as good?
there should be some compatibility list around the net about nvagp vs. different agp chipsets, or shouldn't there? I might remember wrong.
__________________
SK - Java Classic RPG http://zaza.uw.hu/mrp/index.html http://linuxrpgs.blogspot.com
Asus GF8800GTS 320M DDR3 PCI-E - nvidia 169.09
Abit KN9 SLI (nforce570),AMD64 X2 3800+@4800+,2x1GB 800MHz DDR2,160G SATA2 WesternDigital,430W Chieftec PSU
gentoo linux (since 2003) 2006.1 amd64 kernel 2.6.22-suspend2 X.Org 7.3 | gnome 2.20.0, kde 3.5.5, beryl 0.2.1

Samsung SyncMaster 913N@1240, Tatung "32 @1080i, Pinnacle PCTV Rave, Pioneer DVR110D
Abit AN-M2HD NVidia 7050PV Noiseless HTPC, Ubuntu Linux 7.10 64bit kernel 2.6.23.8, nvidia 169.04, FSP Zen 300W,
Thermaltake Sonic Tower, AMD64 X2 4200+, 2GB DDR2, 400G SATA2 WD, Asus TVTuner (saa7134) Silent Linux HTPC

Asus TravelMate 4100 NVidia 6200 Go, Ubuntu Linux 8 32bit kernel 2.6.24, nvidia 169.12, Intel32 1.6G, 1.5GB DDR2,
krionius is offline   Reply With Quote
Old 01-28-08, 07:17 AM   #3
energyman76b
Registered User
 
Join Date: Dec 2002
Location: Clausthal/Germany
Posts: 1,104
Default Re: Agpgart vs nvagp

Quote:
Originally Posted by geezer

What is the trick with getting nvagp to work? And would there be any benefits for games with it,
no

Quote:
Originally Posted by geezer
or is agpgart just as good?
agpgart is just as good or even better. A long time ago, some chipsets worked with nvagp and not with agpgart. And a lot more chipset did not work with nvagp but with agpgart.

But this is long gone. Today there is no real reason to use nvagp.
energyman76b is offline   Reply With Quote
Old 01-28-08, 07:39 AM   #4
pdw_hu
Registered User
 
Join Date: Feb 2006
Posts: 26
Default Re: Agpgart vs nvagp

Well agpgart just locks-up for me, whereas nvagp doesn't.
If you've problems with one of them, try the other...
pdw_hu is offline   Reply With Quote
Old 04-09-08, 03:48 PM   #5
sjs
Registered User
 
Join Date: Jul 2005
Posts: 4
Default Re: Agpgart vs nvagp

Quote:
Originally Posted by krionius
there should be some compatibility list around the net about nvagp vs. different agp chipsets, or shouldn't there? I might remember wrong.
here's one: http://ubuntuforums.org/archive/index.php/t-189933.html

I can't even start X with NvAGP set to anything except "0" (off), which tests the limits of my workstation. One 1920x1200 screen is ok but if I try to TwinView a 2nd 1920x1200 display w/o clone then I am dead in the water. If I use compiz with 2x 1920x1200 I have to kill X or do a hard reset. Running with AGP off is simply not a viable option for me.

* 2x dual-core Opteron 275, 64-bit @ 2.2GHz
* Tyan k8w s2885
* ASUS GeForce n6200 128M AGP 8x
* ubuntu hardy beta, amd64
* kernel 2.6.24 w/ agpgart & iommu support compiled in
* x.org 7.3
* nvidia driver 169.12
* gnome
* metacity and compiz fusion 0.7.0

Ubuntu ships with agpgart compiled into the kernel proper. Compiling a kernel w/o agpgart doesn't help. Nor does passing the kernel agp=off. I still have to set NvAGP to "0" to use the nvidia driver. The nv driver works fine with agpgart @ 1920x1200, but I can't use a 2nd monitor.

I tried booting a 32-bit version of Ubuntu without success, but I did not investigate that thoroughly as running a 32-bit OS doesn't tickle my fancy.

Even with AGP off I am getting Xids.

I have two similar Xids logged in succession:
Quote:
[14556.544275] NVRM: Xid (0005:00): 6, PE0000 04b4 00323232 00009ad8 00000000 00323232
[14556.549216] NVRM: Xid (0005:00): 6, PE0000 04b4 00323232 00000000 00000000 00000000
I'm going to double-check that SBA is enable in my BIOS and try it once again, but I have been at this for nearly a week.

Here's another interesting fact: I have Windows Vista dual booting and the Nvidia drivers on that side cause a BSOD before I even get a login screen (similar to Ubuntu freezing when X starts, no switching to a VT). The default driver Vista uses worked reasonably well. Could it be a hardware problem or BIOS setting we need to fsck with?
sjs is offline   Reply With Quote
Old 04-09-08, 06:01 PM   #6
evil_core
Registered User
 
Join Date: Sep 2007
Posts: 27
Default Re: Agpgart vs nvagp

Quote:
Originally Posted by geezer
What is the trick with getting nvagp to work? And would there be any benefits for games with it, or is agpgart just as good?
Yes, can can have big benefit on chipsets where kernel agp driver doesnt enable SBA or FastWrites, because in nvagp you can simply force it by adding "options nvidia NVreg_EnableAGPSBA=1 NVreg_EnableAGPFW=1 to modprobe.conf", it twice FPS in some games for me. Im using it with beta(damny stable), SBA was causing many xids and hardlocks with driver 100.x.x. series. I have also "install via_agp /bin/true" in /etc/modprobe.conf(you fan find correct modue for your chipset by calling 'lsmod | grep agp'. If you are using ubuntu remember to add options also for kernel mnodule wrappers (like nvidia-new and nvidia-old).

sjs: add "Option "UseEvents" "False" to xorg.conf, its helping me with xids(new beta driver seems to have enabled it by default)
evil_core 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
nForce + RedHat 7.3 Success Story rtz NVIDIA Linux 47 02-15-03 02:20 AM
Cannot load AGPGART arise NVIDIA Linux 2 10-21-02 04:11 PM
crashes and freezes Lethal Weapon NVIDIA Linux 9 09-27-02 08:23 PM
red hat 7.3 driver problems please help war18 NVIDIA Linux 7 09-16-02 12:25 PM
Crash when logout from X TGL NVIDIA Linux 10 09-13-02 08:22 PM

All times are GMT -5. The time now is 04:41 AM.


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