Howto get DRI working on OpenBSD ?

[Landry Breuil]

Hello,
I'm using 4.0-beta from snapshots on my Dell Latitude D410, and apart from
apm not really working properly (no apm/acpi detected on boot, no sensors,
no suspend/halt -p, but SpeedStep works), i'm really pleased of
OpenBSD.

Graphics chipset is a I915GM, and works fine with i810 blob-free X.org
driver, hardware acceleration is done by XAA. OpenGL works through MESA
indirect implementation.

Now i'm trying to get DRI working on this laptop, to use shiny features
like composite and so on. It's not a vital need, just a personnal
challenge :)

From what i understood, DRI is not available by default in OpenBSD, there
is no libdri* in /usr/X11R6/lib/modules/extensions/ .

First, is it possible to get DRI features on OpenBSD ? I know some things
are hardened, like sysctl machdep.aperture and privsep'ed X daemon,
whereas DRI needs special permissions to get direct access to the
hardware.

If so, what is the simplest way to do it ?
- get OpenBSD's cvs tree of X, tweak some makefiles (which ones ?) and
recompile it, or only a part ?
I know DRI drivers are available :
http://www.openbsd.org/cgi-bin/cvsweb/XF4/xc/lib/GL/mesa/drivers/dri/
- follow this documentation : http://dri.freedesktop.org/wiki/Building ?
There is a section for FreeBSD...
- is DRM kernel module needed ? Is the one from FreeBSD likely to
work/compile with OpenBSD ?
There is some (outdated) documentation about this here :
http://people.freebsd.org/~anholt/dri/
- is someone from OpenBSD team already working on this topic ?

I've googled ml archives, and didn't found any relevant information.
So if anyone has a hint/comment on my thoughs/pointer to some ml
post/documentation, i'd be really interested.

I'm attaching the result of glxinfo, dmesg.boot, xorg.conf and Xorg.0.log
to provide as much information as possible.

Thanks for you time reading this,
Landry

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Re: Howto get DRI working on OpenBSD ?

[Damien Miller]

On Wed, 9 Aug 2006, Landry Breuil wrote:

 Now i'm trying to get DRI working on this laptop, to use shiny features
 like composite and so on. It's not a vital need, just a personnal
 challenge :)

You will need to (at least) port the DRM kernel support to OpenBSD.
tedu@ made a start a little while ago, and it is certainly more work
than tweaking makefiles.

-d

Re: Howto get DRI working on OpenBSD ?

[Landry Breuil]

Damien Miller a icrit :
| On Wed, 9 Aug 2006, Landry Breuil wrote:
| 
|  Now i'm trying to get DRI working on this laptop, to use shiny features
|  like composite and so on. It's not a vital need, just a personnal
|  challenge :)
| 
| You will need to (at least) port the DRM kernel support to OpenBSD.
| tedu@ made a start a little while ago, and it is certainly more work
| than tweaking makefiles.

I was afraid this was required... it's certainly something i can't personally 
do :(
Do you have any pointers to tedu's works ? cvs commits, webpage ?
Reading freebsd's implementation is a good start point ?

More generally, did someone manage to get Composite working fine on OpenBSD, 
with i810 accelerated by XAA ?

Thanks,
Landry

Re: Howto get DRI working on OpenBSD ?

[Landry]

Damien Miller wrote:

On Wed, 9 Aug 2006, Landry Breuil wrote:


Now i'm trying to get DRI working on this laptop, to use shiny features
like composite and so on. It's not a vital need, just a personnal
challenge :)


You will need to (at least) port the DRM kernel support to OpenBSD.
tedu@ made a start a little while ago, and it is certainly more work
than tweaking makefiles.
I was afraid this was required... this is certainly something i can't 
personally do :(

Do you have any pointers to tedu's work ? cvs commits, webpage ?
Reading freebsd's implementation of DRM is a good start point ?

Did people already get Composite working flawlessly on OpenBSD, with 
i810 accelerated by XAA ?


Thanks,
Landry