Arch Linux

fishbicki

Member

Registered: 2019-04-28

Posts: 2

GVT-g on Haswell not supported ?

Hi,
I have an Intel i5-4310U CPU 4-th gen. For what I've researched it should support GVT-g.

But when I check this is what I see:

dmesg | grep -i gvt
[    4.785485] [drm] Unsupported device. GVT-g is disabled

I'm on kernel  5.0.9-2.
Did support dropped at some point ?

Slithery

Administrator

From: Norfolk, UK

Registered: 2013-12-01

Posts: 5,776

Re: GVT-g on Haswell not supported ?

As the wiki quite clearly states support is for Broadwell and newer.

Haswell is an earlier μarch.

---

No, it didn't "fix" anything. It just shifted the brokeness one space to the right. - jasonwryan
Closing -- for deletion; Banning -- for muppetry. - jasonwryan

aur - dotfiles

phosit

Member

Registered: 2019-04-22

Posts: 11

Re: GVT-g on Haswell not supported ?

Add

i915.enable_gvt=1

as kernel parameter.

There is your trouble descriped.
https://wiki.archlinux.org/index.php/In … leshooting

fishbicki

Member

Registered: 2019-04-28

Posts: 2

Re: GVT-g on Haswell not supported ?

I though that was for "iGVT" not "GVT-g"
Intel for some reason dropped support now I understand - but GVT-g was available for 4th gen and now the DRM driver blocks it.
Maybe the easiest way would be to fallback to an old arch build...

edit:
I did follow the wiki.
i915.enable_gvt=1 is set - but still I get that unsupported message.
edit2.
ok i need to get some sleep - totally missed the
"If that is the case, you may want to check upstream for support plans. For example, for the "Coffee Lake" (CFL) platform support, see https://github.com/intel/gvt-linux/issues/53" part. - I will check on that. Thanks!

Last edited by fishbicki (2019-04-28 19:23:00)