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Porting DRM/GEM from OpenBSD
I could make the Intel Xorg driver run on a Core i5 laptop, by
porting OpenBSD's DRM/GEM driver to NetBSD. The integrated panel
on this laptop is on an embedded display port (eDP), so I also
backported the Intel (e)DP driver from Linux to Xorg. The sources,
along with a README giving more details, are at:
and some pre-built binaries are available at:
I did not include display-port support by default in these
pre-built archives, to limit the number of bugs I introduced. ;-)
(Well, the amd64 archive has it, but it's hidden.)
The port is currently limited to Intel chipsets. I tested it
(a bit) on Ironlake (Core i5) and (a lot) on i915. If you give
it a try, I'd be happy to hear about it.
Warning: You may get gpu hangs that seem to be related to
timings (see https://github.com/gsutre/netbsd-drmgem/issues).
Returning to the console should still be possible, though.
As a workaround, enabling DebugWait in xorg.conf makes these
gpu hangs disappear for me.
There is still a lot of room for improvement (volunteers?),
but I hope that this is a step in the right direction to get
DRM/GEM(/KMS) support in NetBSD.
p.s. I'm mostly interested in basic desktop usage, so I didn't
look (much) into 3D, XvMC, etc.
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