i915 Coffee Lake

[valpackett]

Looks like it's the same GPU as Kaby. DragonFly patch: http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/8bbe1960fe796710efd0a16cb284f594c504d985

Does anyone have a device to test on?

[iotamudelta]

I think we are generally hesitant to include patches outside of the regular Linux releases - it makes merging in newer releases harder. That being said, if people w/ Coffee Lake have a demand before we caught up with upstream Linux to the point of regular support, I'll see about integrating it into the port.

[jbeich]

FWIW, intel DDX supports Coffee Lake S after freebsd/freebsd-ports@74de47b09100

[iotamudelta]

@myfreeweb could you test with the 4.11 update? Thanks!

That being said: Coffee Lake is only marked as fully supported by Linux 4.15, it seems.

[johalun]

I think we are generally hesitant to include patches outside of the regular Linux releases

Yes, this won't happen in the main branch. If you want to fork and use your own patch that's fine. We hope to have 4.15 ready this summer.

[valpackett]

could you test with the 4.11 update?

Test what? I do not have Coffee Lake :) I said "Does anyone have a device to test on?" in the first post.

[valpackett]

4.13 and 4.14 should support Coffee Lake with i915.alpha_support=1, so closing

[terminalcommand]

Sorry for awakening the issue. Just wanted to leave some pointers for newbies like me.

This repository has the 4.13 and 4.14 under branches. (e.g. https://github.com/FreeBSDDesktop/kms-drm/tree/drm-v4.14). I guess we can download them, compile them and use with coffee lake.

I did some research on linux-kpi and freebsd device drivers in general, but kinda got lost as you would imagine. I also wanted to congratulate and thank you for the amazing development. At first I thought the project was going slowly just looking at the main branch, but once I'd gazed upon the active 4.15 development I was surprised that this project was so alive.

[johalun]

Hi @terminalcommand

Thanks for the feedback.
Usually we make a release every few "linux versions" so 4.13 and 4.14 are just stepping stones towards 4.15 which we'll make a release of as soon as it's stable. Anything other than 4.9, 4.11, 4.15 at this time are not guaranteed to compile or work.

We are working on updating the wiki pages with some more up to date info that will hopefully make things a bit more clear.

If you want to experiment with bleeding edge (and help with testing), please use kernel from here
https://github.com/FreeBSDDesktop/freebsd-base/tree/drm-v4.15
and the drm-v4.15 branch in this repo 👍

Instructions can be found here:
https://github.com/FreeBSDDesktop/kms-drm/wiki/Testing

[gautamcgoel]

I have a Coffee Lake chip (i5 9600k). I'm having trouble getting Xorg to run (startx fails with "Cannot run in Framebuffer mode"). Is this because my integrated graphics is not yet supported? Or is it just a configuration problem on my end?

[valpackett]

@gautamgoel 9xxx is very new, from what I can find it's only supported in Linux 4.20 blaze it

Right now you can try building:

• base from https://github.com/FreeBSDDesktop/freebsd-base/tree/drm-v4.20
• drm-kmod from https://github.com/FreeBSDDesktop/kms-drm/tree/drm-v4.20-rc6