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John2583
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PostPosted: Thu Jan 09, 2003 5:38 am    Post subject: Reply with quote

I just tried the suggested tip, but it didn't work. I have a Geforce4 Ti4200 64MB
Code:
cat /proc/driver/nvidia/cards/0
Model:           GeForce4 Ti 4200
IRQ:             11
Video BIOS:      04.25.00.29.00
Card Type:       AGP

Code:
cat version
NVRM version: NVIDIA Linux x86 NVdriver Kernel Module  1.0-3123  Tue Aug 27 15:56:48 PDT 2002
GCC version:  gcc version 3.2.1

Code:
cat host-bridge
Host Bridge:     nVidia (unknown)     
Fast Writes:     Supported
SBA:             Supported
AGP Rates:       4x 2x 1x
Registers:       0x1f000217:0x00000000

Code:
 cat card
Fast Writes:     Supported
SBA:             Supported
AGP Rates:       4x 2x 1x
Registers:       0x1f000217:0x00000000


but unfortunately agp is still disabled :(
Code:
 cat status
Status:          Disabled

any ideas?

edit: also after i rebooted my /proc/driver/nvidia directory was gone! and there was a new directory in /proc/driver/ray_cs. so i ran startx and the nvidia directory and all the stuff inside it were recreated? what's up with that?

edit again: taskara just told me in a diff. thread that agp gart isn't supported yet for the nforce2 motherboard i have. oh well, i'll wait till nvidia releases them.
Quote:
I know you enabled it in the bios, but what I'm saying is that linux has no support for the nforce AGP gart.

Sure agp will work - I mean you can see your screen can't you?

but it won't have a specific driver loaded for it.

not until nvidia releases an agp driver, cause they keep all their stuff closed source.

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DarkJedi9
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PostPosted: Fri Jan 10, 2003 1:20 am    Post subject: Reply with quote

John2583 wrote:

edit: also after i rebooted my /proc/driver/nvidia directory was gone! and there was a new directory in /proc/driver/ray_cs. so i ran startx and the nvidia directory and all the stuff inside it were recreated? what's up with that?


So the ray_cs deal was before you ran startx at all after a reboot? Not sure here, but possibly the nvidia stuff doesn't come into play until X is up and running. After all, agp gart doesn't do much when you're only in a console.
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floam
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PostPosted: Sat Jan 18, 2003 11:41 am    Post subject: Reply with quote

its not gonna showup in the driver list unless its loaded, remeber that stuff in /proc really arent "files"
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DuF
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PostPosted: Fri Jan 24, 2003 3:38 am    Post subject: Reply with quote

I'm looking for if somebody have try to enable fast writes on a MB Abit KT7a (with via kt133) with Geforce2Pro and if there is no problem of stability ?
I can enabled it, but before trying I will prefer to know if it's a good idea or not :)
If anybody answer me, I will try, but I prefer to know before :P
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floam
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PostPosted: Fri Jan 24, 2003 2:01 pm    Post subject: Reply with quote

my old kt133 worked fine, just try it. its not like you can permanatly hurt anything
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DuF
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PostPosted: Sat Jan 25, 2003 2:32 am    Post subject: Reply with quote

Thanks for the information floam, I will try it at the next reboot, I have change my /etc/modules.d/nividia, so I'm ready to see if I will can play UT2k3 :P
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PostPosted: Sat Jan 25, 2003 9:27 am    Post subject: Reply with quote

i would recommend removing xdm from the startup scripts when you try it, so you dont have to bot with the cd if it locks up your machine
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PostPosted: Sat Mar 01, 2003 6:58 am    Post subject: Update to enable w/new Nvidia Drivers. Reply with quote

On the latest driver release, this solution didn't work for fast write and SBA. I edited my /etc/modules.d/nvidia file to look like this and it worked.

Code:
alias char-major-195 nvidia
options nvidia NVreg_EnableAGPSBA=1 NVreg_EnableAGPFW=1


In the Nvidia 4191 driver release, they changed the module from "NVdriver" to "nvidia".

Good luck!
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Last edited by ScubaStreb on Sun Mar 02, 2003 2:07 am; edited 1 time in total
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PostPosted: Sat Mar 01, 2003 8:27 am    Post subject: Reply with quote

with the new gentoo release the lines you need are only commented out in the relevant files
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pYrania
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PostPosted: Sat Mar 08, 2003 8:22 pm    Post subject: Reply with quote

seems like i am pretty fucked with the gf4go in my notebook :?

Code:

# cat /proc/driver/nvidia/agp/status
Status:          Enabled
Driver:          AGPGART (inactive)
AGP Rate:        4x
Fast Writes:     Disabled
SBA:             Disabled

# cat /proc/driver/nvidia/agp/card   
Fast Writes:     Supported
SBA:             Not Supported
AGP Rates:       4x 2x 1x
Registers:       0x1f000017:0x1f000104

# cat /proc/driver/nvidia/agp/host-bridge
Host Bridge:     SiS (unknown)       
Fast Writes:     Not Supported
SBA:             Supported
AGP Rates:       4x 2x 1x
Registers:       0x1f000207:0x00000104

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zephyr1256
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PostPosted: Sat Mar 15, 2003 4:06 am    Post subject: Reply with quote

I gave this tip a try. Had no problems starting up fluxbox. We'll see if this is stable in a little while(in the past I could run for a while then it would lock up). Before(with Mandrake 9) I wasn't able to run with fast writes or agp greater than 2x, but I did things differently back then. Just for reference I'm using VIA KT266 MB with GeForce Ti 4200 128 MB(8x capable but my MB only supports 4x).

edit: It wasn't stable. Took a while but it eventually crashed, so I reverted to my previous settings.
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hooligan
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PostPosted: Sun Mar 30, 2003 9:52 am    Post subject: Reply with quote

aw weak... I had to update my mobo's bios to support my new processor... and now /proc/driver/nvidia/agp/host-bridge says that Fast Writes are not supported... but it worked prior to my update...

hmmm... agp fast write or 200MHz more processor?

I think I will have to stick with no agp fast write... but it still really really sucks
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MatzeOne
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PostPosted: Fri Oct 10, 2003 9:22 am    Post subject: Reply with quote

what are good benchmarks to see if the activation of fast write and sba increase the performance?

i only know glxgears
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Bastux
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PostPosted: Tue Oct 14, 2003 9:31 pm    Post subject: Reply with quote

Just if you activated the fast write and it makes your X crash even you retired the fast write just compil again the nvidia module
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dmind
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PostPosted: Fri Oct 17, 2003 11:08 am    Post subject: Reply with quote

floam wrote:
my old kt133 worked fine, just try it. its not like you can permanatly hurt anything

can only agree, i have a asus a7v kt133 motherboard and i just recently "upgraded" to an good old geforce2 mx 400 64mb card (bought it from a friend for nothing) and tried it out and works like a charm. though it doesnt support sba. so now i can play nwn and stuff! 8) nwn didnt like me old tnt1 :lol:
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neenee
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PostPosted: Tue Jan 13, 2004 9:34 am    Post subject: Reply with quote

when i enabled sba and fw, my system
locks up when i run tvtime for a minute
or so.

before i ran tvtime, i ran glxgears, which
produced the same fps as without sba
and fw.

both things considered, i'll leave them off.
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grrrrr
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PostPosted: Mon Mar 01, 2004 10:41 pm    Post subject: Reply with quote

fw and sba won't make a difference in glxgears
it'll only show in stuff that uses large textures, like games and stuff
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christsong84
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PostPosted: Thu Mar 04, 2004 2:07 am    Post subject: Reply with quote

k...followed the tip...here's the results

Code:
-(swells@psalms)-(pts0)-(18:01/03-Mar-04)--
--<~>-- cat /proc/driver/nvidia/agp/status
Status:          Enabled
Driver:          AGPGART
AGP Rate:        8x
Fast Writes:     Enabled
SBA:             Disabled
--(swells@psalms)-(pts0)-(18:01/03-Mar-04)--
--<~>-- cat /proc/driver/nvidia/agp/card   
Fast Writes:     Supported
SBA:             Supported
AGP Rates:       8x 4x
Registers:       0x1f000e1b:0x1f004112
--(swells@psalms)-(pts0)-(18:01/03-Mar-04)--
--<~>-- cat /proc/driver/nvidia/agp/host-bridge
Host Bridge:     Intel Corp. 82875P Memory Controller Hub
Fast Writes:     Supported
SBA:             Supported
AGP Rates:       8x 4x
Registers:       0x1f004a1b:0x00000912

since it's supported by both card and mobo...how come even after enabling it, sba doesn't show up? help?
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Glorandar
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PostPosted: Thu Mar 04, 2004 8:46 am    Post subject: I have had the same issue but its now working! Reply with quote

Quote:
since it's supported by both card and mobo...how come even after enabling it, sba doesn't show up? help?

I have (apparently) had the same issue until I used both the latest kernel with the latest nvidia drivers. Also my glxgears performance was suffering.

However, I overcame those issues this evening, on the following system, with the included configuration details:
Code:
mobo: ABIT NF7-S rev 2 [the standard nforce2 ultra 400 chipset)
video card: GeForce FX 5600
sys-kernel/gentoo-dev-sources-2.6.3-r1 [AGPGART enabled]
media-video/nvidia-kernel-1.0.5336-r1
media-video/nvidia-glx-1.0.5336-r1
To emerge these (latest) keyword masked versions of the nvidia driver, add these two lines to /etc/portage/package.keywords:
Code:
media-video/nvidia-glx
media-video/nvidia-kernel
Here is my /etc/X11/XF86Config's Device section:
Code:
Section "Device"
        Identifier  "NVAGP"
        Driver      "nvidia"
        VendorName  "nvidia"
        Option      "NvAGP" "3"
        Option      "CursorShadow" "yes"
        Option      "NoLogo" "yes"
        Option      "RenderAccel" "yes"
EndSection
Here are my AGP results:
Code:
wblew@mortis wblew $ cat /proc/driver/nvidia/agp/status
Status:          Enabled
Driver:          AGPGART
AGP Rate:        8x
Fast Writes:     Enabled
SBA:             Enabled
wblew@mortis wblew $ cat /proc/driver/nvidia/agp/card
Fast Writes:     Supported
SBA:             Supported
AGP Rates:       8x 4x
Registers:       0x1f000e1b:0x1f004312
wblew@mortis wblew $ cat /proc/driver/nvidia/agp/host-bridge
Host Bridge:     nVidia Corporation nForce2 AGP (different version?)
Fast Writes:     Supported
SBA:             Supported
AGP Rates:       8x 4x
Registers:       0x1f00421b:0x00000312
Here are my glxgears results:
Code:
wblew@mortis wblew $ glxgears
7164 frames in 5.0 seconds = 1432.800 FPS
9204 frames in 5.0 seconds = 1840.800 FPS
9172 frames in 5.0 seconds = 1834.400 FPS
9177 frames in 5.0 seconds = 1835.400 FPS
I hope this helps.
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Last edited by Glorandar on Thu Mar 04, 2004 3:52 pm; edited 1 time in total
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Redeeman
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PostPosted: Thu Mar 04, 2004 3:41 pm    Post subject: Reply with quote

floam wrote:
be warned: enabling fastwrites can cause lots of system instability with some via chipsets.


works perfect on asus k8v deluxe with via k8t800
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Stolz
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PostPosted: Sun Mar 21, 2004 11:30 pm    Post subject: Reply with quote

Same problem as rbonthond and christsong84
Code:
$ cat /etc/X11/XF86Config | grep NvAGP
    Option "NvAGP" "1"
Code:
$ cat  /etc/modules.d/nvidia
alias char-major-195 nvidia
alias /dev/nvidiactl char-major-195
options nvidia NVreg_EnableAGPSBA=1 NVreg_EnableAGPFW=1
Code:
$ cat /proc/driver/nvidia/agp/card
Fast Writes:     Supported
SBA:             Supported
AGP Rates:       8x 4x
Code:
$ cat /proc/driver/nvidia/agp/host-bridge
Host Bridge:     nVidia Corporation nForce2 AGP (different version?)
Fast Writes:     Supported
SBA:             Supported
AGP Rates:       8x 4x
Code:
$ cat /proc/driver/nvidia/agp/status
Status:          Enabled
Driver:          NVIDIA
AGP Rate:        8x
Fast Writes:     Enabled
SBA:             Disabled

My System:
Quote:
mobo: Epox 8RDA+ rev 1.1
video card: GeForce 4 Ti 4200
sys-kernel/gentoo-dev-sources-2.6.3-r1 [AGPGART disabled, using NVIDIA driver]
media-video/nvidia-kernel-1.0.5336-r1
media-video/nvidia-glx-1.0.5336-r1


How can I get SBA enabled?

Thanks in advice.
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John5788
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PostPosted: Fri Apr 09, 2004 4:32 am    Post subject: Reply with quote

yeah same here, i want to know how to get SBA enabled. i have fastwrite on and its not doing much of a difference.
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PostPosted: Sun Apr 11, 2004 10:51 pm    Post subject: Reply with quote

Crashes instantly with SBA and Fastwrites enabled. Crashes after about 8 days uptime randomly with Fastwrites enabled and SBA disabled. Rock solid stable with both off.

Specs:

Asus A7v Kt133
Crucial pc 133 Ram
MSI Geforce 4 ti-4200 64mb
Kernel 2.6.3-gentoo-r1
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John5788
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PostPosted: Sun Apr 11, 2004 11:02 pm    Post subject: Reply with quote

my system locked up with only fastwrite on while playing an opengl game.
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PostPosted: Thu Jul 22, 2004 7:39 pm    Post subject: :. copied to gentoo-wiki.com Reply with quote

I have copied this HOWTO, with permission of elboricua to gentoo-wiki.com
http://gentoo-wiki.com/HARDWARE_Nvidia_Driver_AGP_FastWrite_and_Side_Band_Addressing
If you see anything that should be added or changed, feel free to do so.

Thank you for a great HOWTO
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