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Old 04-15-07, 02:30 PM   #3
Join Date: Oct 2004
Posts: 662
Default Re: Nvidia Linux Driver + 8800GTX + 4gigs of ram = No write combining

Originally Posted by Nephyrin
nephyrin@NephGent ~ $ cat /proc/mtrr
reg00: base=0x100000000 (4096MB), size= 512MB: write-back, count=1
reg01: base=0x120000000 (4608MB), size= 256MB: write-back, count=1
reg02: base=0x00000000 (   0MB), size=2048MB: write-back, count=1
reg03: base=0x80000000 (2048MB), size=1024MB: write-back, count=1
>>>> reg04: base=0xc0000000 (3072MB), size= 256MB: write-back, count=1 <<<<
reg05: base=0xcff00000 (3327MB), size=   1MB: uncachable, count=1

01:00.0 VGA compatible controller: nVidia Corporation Unknown device 0191 (rev a2) (prog-if 00 [VGA])
Subsystem: Corp. Unknown device c831
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at fa000000 (32-bit, non-prefetchable) [size=16M]
>>> Memory at d0000000 (64-bit, prefetchable) [size=256M]<<<
Memory at f8000000 (64-bit, non-prefetchable) [size=32M]
??? Your card's memory is @ 0xd0000000

Anyway, MTRR is replaced by the Page Attribute Table (PAT) Extension (which is "on" by default).

Can you post a "glxinfo" infos and a "glxgears -printfps" benchmark next time?
(did you use the ebuilds? or the NVIDIA...* )
chunkey is offline   Reply With Quote