Laptop: Compaq Presario v6030 (6000 series)
Distro: FC6 x86_64
Vid Card: GeForce 6150
I am getting a crash with a purple screen (hard crash) when I Ctrl-Alt-Fx to another console from X. It was suggested I check my aperture size, and in doing so with dmesg I find:
Checking aperture...
CPU 0: aperture @ 20de000000 size 32 MB
Aperture too small (32 MB)
No AGP bridge found
Memory: 989460k/1014784k available (2411k kernel code, 24928k reserved, 1720k data, 204k init)
So, I looked in my bios for a place to change my aperture, and no option. I even tried the ctrl-f1 trick, but it didn't work. The only thing it says in there is (not verbatim):
Video Memory 256
This is shared memory and the actual memory used is set by the OS.
So, doing a little research (I'm not an expert, but I can can cut and paste), I added the following to my kernel line:
iommu=memaper=3
But, after doing this, I *still* get the "Aperture too small (32 MB)" in my dmesg. Does anyone know how I can force a different aperture size so that I can play around. And given that I'm just trying to get rid of the error message, what kind of performance changes should I expect if I do get this working right (besides the obvious "your machine doesn't crash anymore").