[MPlayer-matrox] Matrox G200 mga_vid_test problem

[Paul Novak]

I'm having trouble getting mga_vid to work on my system.  I tried to follow
the installation instruction exactly and have read the FAQs, documentation
and searched google and haven't figured it out yet.

I'm providing all the information I can think of, which is more than
most people will wan to see...

I have an old Matrox Milleninium AGP G200 that came with 8MB of memory.
Afterwards (many years ago),  I bought the 8MB memory expension card 
and installed it in the graphics card to give it 16MB of memory.

I am running Slackware 10.1 without the gnome and kde packages installed.
I have compiled my own 2.4.29 kernel.

Xorg -version reports:

    X Window System Version 6.8.1

The device section of my /etc/X11/xorg.conf file looks like this:

    Section "Device"
           Identifier  "Card0"
	   Driver      "mga"
	   VendorName  "Matrox"
	   BoardName   "MGA G200 AGP"
	   BusID       "PCI:1:0:0"
	   Option      "NoHal" "true"
	   Option      "DRI"   "true"
	   Videoram    16384
    EndSection

I do know that if I do not have the "Videoram" line in my xorg.conf file,
when I start up X, my Xorg.0.log will show that X detects 8MB of memory
in the video card instead of 16.

cat /proc/mtrr shows this:

    reg00: base=0x00000000 (   0MB), size= 512MB: write-back, count=1
    reg01: base=0x20000000 ( 512MB), size= 256MB: write-back, count=1
    reg02: base=0xdb000000 (3504MB), size=  16MB: write-combining, count=2
    reg05: base=0xd0000000 (3328MB), size= 128MB: write-combining, count=2

I guess reg02 is my Matrox card.

I downloaded and installed the MPlayer-1.0pre6a source, cd-ed to drivers,
and ran make.  mga_vid.o and mga_vid_test both compiled.  /dev/mga_vid
already existed (I did not run mknode to create it, it must have come
created in Slackware 10.1).   ls -l /dev/mga_vid shows:

    crw-rw-rw-  1 root root 178, 0 2001-03-25 15:04 /dev/mga_vid

I ran "insmod mga_vid.o", and checked with dmesg and saw this: 
"mga_vid: detected RAMSIZE is 8 MB", so I ran "rmmod mga_vid" and 
then "insmod mga_vid.o mga_ram_size=16".  dmesg then shows:

    Matrox MGA G200/G400/G450/G550 YUV Video interface v2.01 (c) Aaron Holtzman & A'rpi
    mga_vid: Found MGA G200 AGP at 01:00.0 [Matrox Graphics, Inc. MGA G200 AGP]
    mga_vid: MMIO at 0xf2196000 IRQ: 9  framebuffer: 0xDB000000
    mga_vid: OPTION word: 0x4049CD21  mem: 0x13  SGRAM
    mga_vid: RAMSIZE forced to 16 MB
    syncfb (mga): IRQ disabled in mga_vid.c
    mga_vid: 1 supported cards found

I then ran mga_vid_test.  Test 1 (green square) is fine.  When test 2 (cool mosaic
pattern) is starts, I do not see a "mosaic pattern": I see the results of test 3
(color blend).  When test 3 starts, the display does not change: I still see
the color blend.

Just to see what would happen, I removed mga_vid and re-instered it with
only 8MB of memory and verified the result with dmesg.  I reran mga_vid_test
with identical results.  I didn't continue to compile mplayer because I think
I have something wrong.

Should all 3 mga_vid_test tests work for me?  If yes, what did I do wrong and
what can I do to fix it?

Paul.