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deadstar
Guru
Joined: 02 Nov 2004
Posts: 319
Location: England
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 Posted: Tue Mar 01, 2005 3:34 pm Post subject: AGPGART and 2.6.11-rc2-nitro1 |
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Hi all,
Recently switched to Nitro sources just cos I fancy a change from the norm - but 3D acceleration is HALF what I got from my old kernel (2.6.10-r6). GLXGEARS shows about 11000 FPS in the old, 5000 FPS in the new.
After two solid days of messing around, I've boiled it down to AGP. Here's some figures:
| Code: |
bash-2.05b# cat /proc/driver/nvidia/agp/status
Status: Disabled
AGP initialization failed, please check the ouput
of the 'dmesg' command and/or your system log file
for additional information on this problem.
bash-2.05b#
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| Code: |
bash-2.05b# dmesg | grep agp
Linux agpgart interface v0.100 (c) Dave Jones
bash-2.05b#
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I have AGPGART compiled in the kernel (I've also tried as a module) plus the correct chipset (nforce/nforce2). DMESG shows no other relevant sections.
Any ideas? I've searched the forums to no avail 
Thanks in advance.[/code]
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deadstar
Guru
Joined: 02 Nov 2004
Posts: 319
Location: England
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| Posted: Tue Mar 01, 2005 4:21 pm Post subject: |
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BTW missed some vital details:
- Using nvidia driver 6629-r3 (NO others will work at all)
- NvAGP is set to 2 as stated in the nitro forum
- Card is nVidia GeForce 6600GT
- Tried with and without framebuffer running
- Tried opengl-update with nvidia and xorg-x11
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Benson
Apprentice
Joined: 23 Feb 2004
Posts: 156
Location: Switzerland
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| Posted: Tue Mar 01, 2005 5:06 pm Post subject: |
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You could try a more recent kernel, the first release candidats of the 2.6.11-kernel have some issues with the nvidia-kernel, if you read through the appropriate threads from the nitro-sources, you'll also see that there's a nvidia ebuild for those having problems with the nvidia-module. But really my advice is to update the kernel, you could try the newest 2.6.11-rc5-nitro0, works for me.
Another thing: I have a nVidia GeForce 6600 too (MSI), but i've never reached 11000FPS with glxgears - thats a value i think would only be possible with an GeForce 6800 Ultra or similar....
rgds
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deadstar
Guru
Joined: 02 Nov 2004
Posts: 319
Location: England
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| Posted: Wed Mar 02, 2005 11:59 am Post subject: |
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Yeah that FPS is possible by tuning over time -
1: its overclocked
2: Comment out "load extmod" in yourxorg.conf (You may get a few graphical glitches in the GUI, but 3D is faster)
3: Run at 16bpp
I thought I did have the latest nitro kernel? Maybe I didn;t read thouroughly enough.
Thanks, I'll give it a try.
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