CONFIG_FB_MATROX_MULTIHEAD: Multihead support

General informations

The Linux kernel configuration item CONFIG_FB_MATROX_MULTIHEAD:

• prompt: Multihead support
• type: bool
• depends on: CONFIG_FB_MATROX
• defined in drivers/video/Kconfig
• found in Linux kernels: 2.5.45–2.5.75, 2.6.0–2.6.31

Help text

Say Y here if you have more than one (supported) Matrox device in your computer and you want to use all of them for different monitors ("multihead"). If you have only one device, you should say N because the driver compiled with Y is larger and a bit slower, especially on ia32 (ix86).

If you said M to "Matrox unified accelerated driver" and N here, you will still be able to use several Matrox devices simultaneously: insert several instances of the module matroxfb into the kernel with insmod, supplying the parameter "dev=N" where N is 0, 1, etc. for the different Matrox devices. This method is slightly faster but uses 40 KB of kernel memory per Matrox card.

There is no need for enabling 'Matrox multihead support' if you have only one Matrox card in the box.

Hardware

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Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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