[MPlayer-users] Help setting MTRR

[Philip Walden]

I am getting "Your system is too SLOW to play this" messages.

I have verified all the performance tunings (disk dma, xvideo, 
monitoring top) except MTRR settings. I'd appreciate any coaching on 
doing this.

I have FC5 with Xorg.0. Supposedly it should set my MTRR automagically, 
but from what I see, it does not look like it.

I have a Athlon 856MHz with a nVidia Corporation NV5 RIVA TNT2/TNT2 Pro 
16MB videoram on FC5 2.6.18-1.2239.fc5.

The Xorg.0.log says:

PCI:*(1:5:0) nVidia Corporation NV5 [RIVA TNT2/TNT2 Pro] rev 21, Mem @ 
0xf5000000/24, 0xfc000000/25

lspci -v says:
 From lspci -v
01:05.0 VGA compatible controller: nVidia Corporation NV5 [RIVA 
TNT2/TNT2 Pro] (rev 15) (prog-if 00 [VGA])
        Subsystem: ASUSTeK Computer Inc. AGP-V3800 SDRAM
        Flags: bus master, 66MHz, medium devsel, latency 40, IRQ 11
        Memory at f5000000 (32-bit, non-prefetchable) [size=16M]
        Memory at fc000000 (32-bit, prefetchable) [size=32M]
        Capabilities: [60] Power Management version 1
        Capabilities: [44] AGP version 2.0

The /proc/mttr says only:

reg00: base=0x00100000 (   1MB), size= 256MB: write-back, count=1

So it looks like Xorg.0 did not set the MTTR correctly.

 From what I read in most HowTos, I should set it as below, but what 
about that other 32MB memory region? One HowTos I saw says to use the 
last memory address?

echo "base=0xf5000000 size=0x1000000 type=write-combining" >| /proc/mtrr