AGPGART 0x mode [Archive]

c0rN_g0aT

July 4th, 2005, 03:01 AM

Ok I love RMS and all but I went ahead and installed the Binary only nvidia driver. I used the apt method in the howto ;)

I have a AGP 3.0 (4x/8x) geforce fx 5200 plugged into a AGP 2.0 slot (2x/4x). The card should work just fine with the 1.5v instead of 0.8v and it does. It works, and I can even play 3d games etc....

However its a little slugish.

here is my cat /proc/driver/nvidia/agp/host-bridge

#############################################
Host Bridge: VIA Technologies, Inc. VT82C693A/694x [Apollo PRO133x]
Fast Writes: Supported
SBA: Supported
AGP Rates: 2x 1x
Registers: 0x1f000213:0x00000100
#############################################

??? its a 4x/8x card in a 4x slot ???
I checked the BIOS and everthing is set correctly

My /etc/modutils/nvidia-kernel-nkc reads

#############################################
alias char-major-195
options nvidia NVreg_EnableAGPSBA=1 NVreg_EnableAGPFW=1 NVreg_ReqAGPRATE=2
#############################################

and i put Option "AGPMode" "2x" in my xorg.conf

here is what dmesg gives me

#############################################
agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
agpgart: Putting AGP V2 device at 0000:00:00.0 into 4x mode
agpgart: Putting AGP V2 device at 0000:01:00.0 into 4x mode
agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
agpgart: Putting AGP V2 device at 0000:00:00.0 into 0x mode
agpgart: Putting AGP V2 device at 0000:01:00.0 into 0x mode
#############################################

it happens every single time!!!
I set xorg.conf and the modutils stuff to 4x and I still get the same stuff about 0x mode

here is my cat /proc/driver/nvidia/agp/status

#############################################
Status: Enabled
Driver: AGPGART
AGP Rate: 0x
Fast Writes: Disabled
SBA: Disabled
#############################################

recap-------
AGP 4x, SBA and Fast Writes are all set correctly in the BIOS
Host-Bridge says that SBA and FW are supported and for some reason lists my 4x8x card as 1x2x

I can't for the love of god get anything but 0x outta my card

Please help!

P.S. I tried using the nvAGP "1" but it wouldn't load because AGPGART was already loaded :(

Lord Illidan

July 4th, 2005, 04:02 AM

Run glxgears..How many fps can u get?

c0rN_g0aT

July 4th, 2005, 01:12 PM

With the terminal in one corner of the screen and the glxgears window in the other (standard size) I get an average of about 2850fps.

If i maximize the glxgears window, my average drops to around 400fps.

Again my card is a ASUS GeForce FX 5200 with 128mb of ram

Teren

July 4th, 2005, 04:00 PM

t2kburl

July 4th, 2005, 04:37 PM

I have a 5200 and I've never seen over 2500 fps

Lord Illidan

July 4th, 2005, 05:47 PM

Forget about the 0x mode..try and run some opengl games..if they work satisfactorily...then you are fine!

c0rN_g0aT

July 5th, 2005, 10:26 AM

I can play A Tale In The Dessert (ATITD) on the highest settings with a few dropped frames here and there. So even if we can't get it fixed I will be ok.

With that said......

I hate typing dmesg and seeing AGPGART setting my card up in 0x mode and aparently completely disregarding the SBA and FW stuff. Its like having a spotless wine glass with one big greasy fingerprint on it. Unless two different methods of checking (see first post) are reporting incorrectly, my card is running in 0x mode which I am assuming is regular PCI speed.

More Info on my PC

ABIT VP6 MoBo with Dual PIII 933Mhz and 2GB PC 133 ram
Via Apollo chipset

I guess what I want to here is "its a know issue there is nothing you can do" *or* "thats an easy one here is what you do to fix it".

Thanks guys :)

citizenr

July 9th, 2006, 09:33 PM

sudo gedit /etc/modprobe.d/blacklist

append at the end

blacklist agpgart
blacklist via_agp

and NO mate, your host-bridge is AGP x2, not x4

>P.S. I tried using the nvAGP "1" but it wouldn't load because AGPGART was already loaded

try now, you must have 1 for nvagp to load, it will now that agpgart is blacklisted