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DRM(4) Device Drivers Manual DRM(4)

drm, inteldrm, radeondrm
Direct Rendering Manager device

inteldrm* at vga?
drm* at inteldrm?
radeondrm* at pci?
drm* at radeondrm?

The drm driver provides support for hardware accelerated video using the Direct Rendering Infrastructure (DRI). drm provides kernel support for DRI, and is used in conjunction with the X(7) DRI module.

Support is currently available for the following graphics cards:

intel(4)
Intel integrated graphics chipsets
radeon(4)
ATI RADEON video driver

/dev/drm[0-9]*
DRM primary node files.
/dev/drmR*
DRM render node files.
/usr/X11R6/lib/modules/dri/*_dri.so
X DRI modules.

vga(4)

The drm driver first appeared in OpenBSD 4.3.
May 12, 2019 OpenBSD-current