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Old 05-10-08, 04:09 AM   #1
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Default how to set aperture size using nvidia drivers on Ubuntu 8.04 64-bit

Each time I boot the following is displayed in my log files.

[ 14.011806] Checking aperture...
[ 14.011808] CPU 0: aperture @ 61e4000000 size 32 MB
[ 14.011810] Aperture too small (32 MB)
[ 14.017878] No AGP bridge found
[ 14.038132] Memory: 1278712k/1309568k available (2466k kernel code, 30452k reserved, 1309k data, 316k init)

The following is displayed in my 'Nvidia X Server Settings' window.


I currently have 1.5gb of RAM installed and I've manually set the framebuffer size in my bios to 256mb for my integrated video card. The Nvidia Settings window detects 512mb of video memory which is incorrect (should say 256mb). My logs say that the aperture size is 32mb. I've tried adding the Option 'VideoRam' '262144' setting to my /etc/X11/xorg.conf file which didn't help. Any ideas how I can manually configure the aperture size or frame buffer?

When I open the 'Screen and Graphics' window the Video Memory box is grayed out. How can I manually specify the video memory while using the nvidia drivers?

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Old 05-12-08, 10:46 AM   #2
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Posts: 122
Default Re: how to set aperture size using nvidia drivers on Ubuntu 8.04 64-bit

seriously, how do you expect anyone to help you if you don't tell us what hardware you have?

see. we can only do useless guesswork:

1. aperture is for agp. if you have pci-express card it doesn't matter. aperture size has no relation to video ram size.
2. if you have a pci-e card that supports turbocache, then the video memory is the maximum one, including the one available via turbocache, not the physical one on the card. the extra memory is allocated on demand.
3. framebuffer size has nothing to do with aperture, and may or may not have a relation to video ram, depending on what the BIOS author meant by that, the only sure thing being that framebuffer size < video ram size.
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