From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 98505] [Topaz] Regression introduces in 4.8-rc3 Date: Fri, 04 Nov 2016 14:51:49 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0699341808==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [IPv6:2610:10:20:722:a800:ff:fe98:4b55]) by gabe.freedesktop.org (Postfix) with ESMTP id 8755A6E9B4 for ; Fri, 4 Nov 2016 14:51:49 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0699341808== Content-Type: multipart/alternative; boundary="14782711091.DdABEB.31735"; charset="UTF-8" --14782711091.DdABEB.31735 Date: Fri, 4 Nov 2016 14:51:49 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D98505 --- Comment #15 from Alex Deucher --- (In reply to Peter Wu from comment #14) > (In reply to Alex Deucher from comment #12) > [..] > > > Lowering the minumum from 2015 to 2014 should work for nouveau: > > > https://lists.freedesktop.org/archives/nouveau/2016-July/025619.html > > >=20 > >=20 > > For further clarify on your research, the current hybrid graphics spec > > requires no connectors on the dGPU and hence no audio devices. For dev= ices > > with connectors on the dGPU, they should use the older vendor specific > > methods and PR3 should not be exposed. >=20 > The list was mentioned because of the BIOS dates and whether _PR3 is used. >=20 > The Windows 8 requirements state that the discrete GPU is render-only[0], > but the Win10 reqs have no such requirement[1]. (Are these the same specs > you had in mind? If not, could you share the right one?) On my new hybrid > nvidia laptop, there are actually DP/HDMI ports to the dGPU (HDMI with > audio). >=20 I had access to the PR3 spec internally. I'm not sure if it's available publicly or not. Support for displays was not included in the information I saw or from talking with our internal hybrid graphics architects. It's possible the spec has been updated since I last talked to them earlier this year. I can double check. Does your new laptop use PR3 or the older nvidia proprietary ACPI method? > [0]: > https://msdn.microsoft.com/en-us/library/windows/hardware/dn265510(v=3Dvs= .85). > aspx > [1]: > https://msdn.microsoft.com/en-us/windows/hardware/commercialize/design/ > compatibility/systems#systemfundamentalsgraphicshybridgraphicsmultigpu >=20 > > > You can try to ask Mika, see v4.7-rc2-3-g9d26d3a. Maybe the presence = of a > > > power resource (_PR3 or flags.power_resources) can be used as a hint = whether > > > to enable port PM. > >=20 > > Yes, the presence of _PR3 would be a great way to determine when to ena= ble > > it. >=20 > Have you been working on this or should I have a look? I have not been. Please have a look. Thanks! --=20 You are receiving this mail because: You are the assignee for the bug.= --14782711091.DdABEB.31735 Date: Fri, 4 Nov 2016 14:51:49 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Commen= t # 15 on bug 98505<= /a> from Alex Deucher 
(In reply to Peter Wu from comment #14)
> (In reply to Alex Deucher from comment #12)
> [..]
> > > Lowering the minumum from 2015 to 2014 should work for nouve=
au:
> > > https://lists.freedesktop.org/archives/nouveau/2016-Ju=
ly/025619.html
> > >=20
> >=20
> > For further clarify on your research, the current hybrid graphics=
 spec
> > requires no connectors on the dGPU and hence no audio devices.  F=
or devices
> > with connectors on the dGPU, they should use the older vendor spe=
cific
> > methods and PR3 should not be exposed.
>=20
> The list was mentioned because of the BIOS dates and whether _PR3 is u=
sed.
>=20
> The Windows 8 requirements state that the discrete GPU is render-only[=
0],
> but the Win10 reqs have no such requirement[1]. (Are these the same sp=
ecs
> you had in mind? If not, could you share the right one?) On my new hyb=
rid
> nvidia laptop, there are actually DP/HDMI ports to the dGPU (HDMI with
> audio).
> 

I had access to the PR3 spec internally.  I'm not sure if it's available
publicly or not.  Support for displays was not included in the information I
saw or from talking with our internal hybrid graphics architects.  It's
possible the spec has been updated since I last talked to them earlier this
year.  I can double check.

Does your new laptop use PR3 or the older nvidia proprietary ACPI method?

>  [0]:
> https://msdn.microsoft.com/en-us/library/windows/hardwar=
e/dn265510(v=3Dvs.85).
> aspx
>  [1]:
> https://msdn.microsoft.com/en-us/windows/hardware/commerciali=
ze/design/
> compatibility/systems#systemfundamentalsgraphicshybridgraphicsmultigpu
>=20
> > > You can try to ask Mika, see v4.7-rc2-3-g9d26d3a. Maybe the =
presence of a
> > > power resource (_PR3 or flags.power_resources) can be used a=
s a hint whether
> > > to enable port PM.
> >=20
> > Yes, the presence of _PR3 would be a great way to determine when =
to enable
> > it.
>=20
> Have you been working on this or should I have a look?

I have not been.  Please have a look.  Thanks!

You are receiving this mail because:
  • You are the assignee for the bug.
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