mga_vid is a combination of a video output driver and
a Linux kernel module that utilitizes the Matrox G200/G400/G450/G550 video
scaler/overlay unit to perform YUV->RGB colorspace conversion and arbitrary
mga_vid has hardware VSYNC support with triple
buffering. It works on both a framebuffer console and under X, but only
with Linux 2.4.x.
For a Linux 2.6.x version of this driver check out http://attila.kinali.ch/mga/.
To use it, you first have to compile mga_vid.o:
cd drivers make
Then run (as
which should install the module and create the device node for you. Load the driver with
You should verify the memory size detection using the dmesg command. If it's bad, use the mga_ram_size option (rmmod mga_vid first), specify card's memory size in MB:
insmod mga_vid.o mga_ram_size=16
To make it load/unload automatically when needed, first insert the following line at the end of /etc/modules.conf:
alias char-major-178 mga_vid
Now you have to (re)compile MPlayer, ./configure will detect /dev/mga_vid and build the 'mga' driver. Using it from MPlayer goes by -vo mga if you have matroxfb console, or -vo xmga under XFree86 3.x.x or 4.x.x.
The mga_vid driver cooperates with Xv.
The /dev/mga_vid device file can be read for some info, for example by
and can be written for brightness change:
echo "brightness=120" > /dev/mga_vid
There is a test application called mga_vid_test in the same directory. It should draw 256x256 images on the screen if all is working well.