G400 second head support
modulename: matroxfb_maven.ko
configname: CONFIG_FB_MATROX_MAVEN
Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>Frame buffer Devices
└─>G400 second head support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)
WARNING !!! This support does not work with G450 !!!
Say Y or M here if you want to use a secondary head (meaning two
monitors in parallel) on G400 or MGA-TVO add-on on G200. Secondary
head is not compatible with accelerated XFree 3.3.x SVGA servers -
secondary head output is blanked while you are in X. With XFree
3.9.17 preview you can use both heads if you use SVGA over fbdev or
the fbdev driver on first head and the fbdev driver on second head.
If you compile it as module, two modules are created,
matroxfb_crtc2 and matroxfb_maven. Matroxfb_maven is needed for
both G200 and G400, matroxfb_crtc2 is needed only by G400. You must
also load i2c-matroxfb to get it to run.
The driver starts in monitor mode and you must use the matroxset
tool (available at
<ftp://platan.vc.cvut.cz/pub/linux/matrox-latest/>) to switch it to
PAL or NTSC or to swap primary and secondary head outputs.
Secondary head driver also always start in 640x480 resolution, you
must use fbset to change it.
Also do not forget that second head supports only 16 and 32 bpp
packed pixels, so it is a good idea to compile them into the kernel
too. You can use only some font widths, as the driver uses generic
painting procedures (the secondary head does not use acceleration
engine).
Say Y or M here if you want to use a secondary head (meaning two
monitors in parallel) on G400 or MGA-TVO add-on on G200. Secondary
head is not compatible with accelerated XFree 3.3.x SVGA servers -
secondary head output is blanked while you are in X. With XFree
3.9.17 preview you can use both heads if you use SVGA over fbdev or
the fbdev driver on first head and the fbdev driver on second head.
If you compile it as module, two modules are created,
matroxfb_crtc2 and matroxfb_maven. Matroxfb_maven is needed for
both G200 and G400, matroxfb_crtc2 is needed only by G400. You must
also load i2c-matroxfb to get it to run.
The driver starts in monitor mode and you must use the matroxset
tool (available at
<ftp://platan.vc.cvut.cz/pub/linux/matrox-latest/>) to switch it to
PAL or NTSC or to swap primary and secondary head outputs.
Secondary head driver also always start in 640x480 resolution, you
must use fbset to change it.
Also do not forget that second head supports only 16 and 32 bpp
packed pixels, so it is a good idea to compile them into the kernel
too. You can use only some font widths, as the driver uses generic
painting procedures (the secondary head does not use acceleration
engine).