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Old 05-14-04, 06:50 PM   #13
Mr Marmalade
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Default Re: nvidia gf4mx440 PCI quake2

from reading other posts, i think there might be a GeForceMX440 PCI problem (dont know if it affects other models). all the things i've tried seem to show theres no major IRQ conflict or PCI timing issue, and i think i'm using the library files right (i'm doing exactly the same thing on another machine, except AGP, and q2 works). do you think this is the case and i'll just have to hope for this to be fixed in the next driver release? i'll keep on googling...
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Old 05-16-04, 10:45 AM   #14
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Default Re: nvidia gf4mx440 PCI quake2

maybe it is to do with PCI timig. simply changing the timing in the BIOS isn't enough for the NVIDIA drivers as they dont depend on the BIOS setting. before loading X, i typed "lspci -v", and it had the BIOS-set PCI latency value, but after loading X it changed to 248, but everything else remained as per the BIOS setting (indicating that the nvidia drivers caused this change).

using "setpci -v -d *:* latency_timer=XYZ" , where XYZ was a hexadecimal value ('b0' for 176, 'ff' for 248, '40' for 64, thats all i know so far), i could then change them ALL (including the geforce card) within X, and retry quake2. it seems to be doing something, maybe not going to solve the problem, but does affect the stuttering and final 'crash'-point during the q2 intro demo (the guy has never yet got out the 1st room). i'd like to know how to alter the individual device latency_timer values, as the *:* is global & some other hex values.

i've tried;
"setpci -v -d 00:14.0:0d latency_timer=XYZ"
"setpci -v -d 00:14.0 latency_timer=XYZ"
"setpci -v -d 14.0:0d latency_timer=XYZ"
"setpci -v -d 00:14 latency_timer=XYZ"
but I keep on getting "lspci: -d: Invalid device ID". the *:* value shows 00:14.0 left of the nvidia card when doing lspci -v, (after i had done a *:* global change it showed me the ":0d" bit also, thats why i tried adding it too). what am i doing wrong?

oh, the only other expansion cards i have in my machine are a PCI SBLive! and an ISA D-Link NIC, and there's no PCI IRQ conflicts.
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Old 05-19-04, 06:53 PM   #15
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Default Re: nvidia gf4mx440 PCI quake2

removed my ISA NIC & PCI SBLive!, OpenGL graphics still stutter.
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Old 05-20-04, 04:11 PM   #16
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Default Re: nvidia gf4mx440 PCI quake2

i've attached the following:

1. pip@zippy:~$ cat /proc/interrupts

2. root@zippy:/home/pip# dmesg

3. pip@zippy:~$ cat /proc/driver/nvidia/agp/host-bridge

4. root@zippy:/home/pip# lspci -v

5. /etc/rc.d/rc.modules

and i'll add the XF86Config to the next post.
Attached Files
File Type: txt Interrup.txt (549 Bytes, 99 views)
File Type: txt Dmesg.txt (7.8 KB, 110 views)
File Type: txt Agp.txt (227 Bytes, 100 views)
File Type: txt Lspciv.txt (2.4 KB, 112 views)
File Type: txt Rcmodule.txt (24.9 KB, 92 views)
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Old 05-20-04, 04:11 PM   #17
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Default Re: nvidia gf4mx440 PCI quake2

6. /etc/X11/XF86Config

P.S.: this thread is getting lonely...
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File Type: txt Xf86conf.txt (15.3 KB, 123 views)

Last edited by Mr Marmalade; 05-20-04 at 05:25 PM.
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