[MPlayer-users] mtrr help needed

[Roger Miliker]

Am Mittwoch, 20. Februar 2002 19:17 schrieben Sie:
> Hello, Roger!
>
> On Wed, 20 Feb 2002 00:11:18 +0100 you wrote:
> > [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> >
> > Am Dienstag, 19. Februar 2002 19:36 schrieben Sie:
> > > Hello, Roger!
> > >
> > > On Tue, 19 Feb 2002 01:49:16 +0100 you wrote:
> > > > [Automatic answer: RTFM (read DOCS, FAQ), also read
> > > > DOCS/bugreports.html] 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!
> > >
> > > Try read docs/mtrr better ;)
> > > You pointed even wrong phys address of your video memory.
> > > Or try use mplayer-CVS. There is already implemented mach64 vidix's
> > > driver which configures mtrr automatically.
> >
> > Thanks, I'm using cvs mplayer now. Congrats to vidix!
> >
> > However I didn't set the mtrr to the wrong value. Can you please tell me
> > how I can permanently correct the wrong setting?
> > What could have caused this setting?
> >
> > > reg04: base=0xed000000 (3792MB), size=61448MB: write-combining, count=3
>
> Send us your command line which produces such strange mtrr settings
>

Actually I did NOT enter anything via commandline that caused this setting. 
All I did was cat /proc/mtrr to look at the settings.
My question is what could have set up mtrr like this Xfree86? the kernel? 
Where should I look to find out?

Roger