[MPlayer-users] mtrr help needed

[Roger Miliker]

Hi,
I experienced slow video playback when playing a divX movie, read in the docs 
that setting up mtrr for the videocard memory would speed things up.
My problem is that cat /proc/mtrr gives (me) confusing:

reg00: base=0x00000000 (   0MB), size= 256MB: write-back, count=1
reg01: base=0x10000000 ( 256MB), size=  64MB: write-back, count=1
reg04: base=0xed000000 (3792MB), size=61448MB: write-combining, count=3 

What's this, what causes this and how do I get mtrr set up properly?

I'm using:
SuSE 7.2 
mplayer 0.60
xfree86 4.0.3

SuperProbe says:

First video: Super-VGA
        Chipset: ATI 264GT3 (3D Rage Pro) (Port Probed)
        Memory:  8192 Kbytes
        RAMDAC:  ATI Mach64 integrated 15/16/24/32-bit DAC w/clock
                 (with 6-bit wide lookup tables (or in 6-bit mode))
                 (programmable for 6/8-bit wide lookup tables)
        Attached graphics coprocessor:
                Chipset: ATI Mach64
                Memory:  8192 Kbytes

lspci -v says:


01:00.0 VGA compatible controller: ATI Technologies Inc 3D Rage Pro AGP 1X/2X 
(rev 5c) (prog-if 00 [VGA])
        Subsystem: ATI Technologies Inc 3D Rage Pro AGP 1X/2X
        Flags: bus master, stepping, medium devsel, latency 64, IRQ 9
        Memory at ee000000 (32-bit, non-prefetchable) [size=16M]
        I/O ports at cc00 [size=256]
        Memory at efeff000 (32-bit, non-prefetchable) [size=4K]
        Expansion ROM at efec0000 [disabled] [size=128K]
        Capabilities: [50] AGP version 1.0


Any help is very much appreciated!

Thanks

Roger