savagedrm man page on NetBSD

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DRM(4)			 BSD Kernel Interfaces Manual			DRM(4)

NAME
     drm — Direct Rendering Manager (DRI kernel support)

SYNOPSIS
     i915drm* at vga?
     mach64drm* at vga?
     mgadrm* at vga?
     r128drm* at vga?
     radeondrm* at vga?
     savagedrm* at vga?
     sisdrm* at vga?
     tdfxdrm* at vga?
     viadrm* at vga?

     options DRM_DEBUG
     options DRM_NO_AGP

DESCRIPTION
     The Direct Rendering Manager is part of the Direct Rendering
     Infrastructure (see http://dri.freedesktop.org/) for supporting video
     acceleration (3d acceleration, mostly).

     The drm drivers provide support for the following chipsets:
	   i915drm	  Intel i915, i945
	   mach64drm	  Mach64 (3D Rage Pro, Rage)
	   mgadrm	  Matrox G[24]00, G[45]50
	   r128drm	  ATI Rage 128
	   radeondrm	  ATI Radeon
	   savagedrm	  S3 Savage
	   sisdrm	  SiS
	   tdfxdrm	  3dfx (Voodoo)
	   viadrm	  VIA

     To make use of the driver, the kernel must include agp(4) (for some driv‐
     ers, using options DRM_NO_AGP instead may be sufficient), X(7) must be
     compiled with DRI support, Mesa DRI drivers must be installed, the appro‐
     priate /dev/dri/card* device must exist, and DRI must be enabled in the X
     configuration file.  X(7) provided with NetBSD and compiled from
     pkgsrc(7) do so automatically where supported.

     X(7) will attempt to create the device node automatically.	 To create the
     device node manually:

	   mkdir -p /dev/dri
	   mknod /dev/dri/card0 c 180 0
	   chgrp wheel /dev/dri/card0
	   chmod 0660 /dev/dri/card0

     To enable DRI in the X configuration add the following to either
     xorg.conf for Xorg(1) or XF86Config for XFree86(1) :

	   Section "Module"
		   ...
		   Load	 "dri"
		   Load	 "dri2"
		   Load	 "glx"
	   EndSection
	   ...
	   Section "DRI"
		   Group "wheel"
		   Mode 0660
	   EndSection

     Debugging output can be enabled and disabled by setting the sysctl(8)
     node hw.dri.debug.	 Additional information can be obtained from the
     sysctl(8) nodes hw.dri, hw.dri.card0, hw.dri.card1, etc.

SEE ALSO
     XFree86(1), Xorg(1), agp(4), XF86Config(5), xorg.conf(5), X(7),
     /usr/X11R[67]/lib/X11/doc/README.DRI

HISTORY
     DRM was first available for Linux.	 Subsequently Eric Anholt ported the
     DRM kernel modules to FreeBSD.  Erik Reid adapted the FreeBSD DRM kernel
     modules to NetBSD.	 As DRM continued to develop the NetBSD support was
     neglected.	 Tonnerre Lombard got the DRM modules working again, but DRM
     development once again left the NetBSD support behind.  Finally Yorick
     Hardy took the FreeBSD DRM source and managed to get it compiling and
     working again on NetBSD, thanks largely to the efforts of all those men‐
     tioned above.  Subsequently Matthias Drochner improved the DRM file hier‐
     archy for NetBSD and committed the DRM kernel drivers.  Matthew Green
     cleaned up this port and merged a set of newer drivers, with Arto Huusko
     and FUKAUMI Naoki helping to get the latest Mesa port up to date.

     The drm drivers appeared in NetBSD 5.0.

AUTHORS
     Eric Anholt, Terry Barnaby, Erdi Chen, Michel Daenzer, Leif Delgass,
     Frank C. Earl, Rickard E. Faith, Jose Fonseca, Nicolai Haehnle, Jeff
     Hartmann, Thomas Hellstrom, Gareth Hughes, Felix Kuehling, Sung-Ching
     Lin, Kevin E. Martin, Jared D. McNeill, Daryll Strauss, Keith Whitwell

CAVEATS
     In case of errors, /dev/dri/card0 may be changed, make sure to recreate
     it in that case.

     options DRM_DEBUG can slow DRI down a lot; disable it once drm works.

BSD				 May 11, 2010				   BSD
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