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From: Alex Deucher <alexdeucher@gmail.com>
To: Mario.Limonciello@dell.com
Cc: Takashi Iwai <tiwai@suse.de>, Karol Herbst <kherbst@redhat.com>,
	nouveau <nouveau@lists.freedesktop.org>,
	"Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Maling list - DRI developers  <dri-devel@lists.freedesktop.org>,
	Linux ACPI <linux-acpi@vger.kernel.org>,
	Alex Hung <alex.hung@canonical.com>,
	Ben Skeggs <bskeggs@redhat.com>, Dave Airlie <airlied@redhat.com>
Subject: Re: [Nouveau] [PATCH 1/7] Revert "ACPI / OSI: Add OEM _OSI string to enable dGPU direct output"
Date: Thu, 15 Aug 2019 14:34:08 -0400
Message-ID: <CADnq5_NKyK7=C+j+yvxME4u1eN3XEB7n2QnVPEn2QqvwAhquDA@mail.gmail.com> (raw)
In-Reply-To: <8724585e50004bc8b6f310587555f4a1@AUSX13MPC101.AMER.DELL.COM>

On Thu, Aug 15, 2019 at 12:19 PM <Mario.Limonciello@dell.com> wrote:
>
> > -----Original Message-----
> > From: Takashi Iwai <tiwai@suse.de>
> > Sent: Thursday, August 15, 2019 9:57 AM
> > To: Alex Deucher
> > Cc: Karol Herbst; Limonciello, Mario; nouveau; Rafael J . Wysocki; LKML; dri-devel;
> > Linux ACPI Mailing List; Alex Hung; Ben Skeggs; David Airlie
> > Subject: Re: [Nouveau] [PATCH 1/7] Revert "ACPI / OSI: Add OEM _OSI string to
> > enable dGPU direct output"
> >
> >
> > [EXTERNAL EMAIL]
> >
> > On Thu, 15 Aug 2019 16:37:05 +0200,
> > Alex Deucher wrote:
> > >
> > > On Thu, Aug 15, 2019 at 10:25 AM Karol Herbst <kherbst@redhat.com> wrote:
> > > >
> > > > On Thu, Aug 15, 2019 at 4:20 PM <Mario.Limonciello@dell.com> wrote:
> > > > >
> > > > > > > There are definitely going to be regressions on machines in the field
> > with the
> > > > > > > in tree drivers by reverting this.  I think we should have an answer for all
> > of
> > > > > > those
> > > > > > > before this revert is accepted.
> > > > > > >
> > > > > > > Regarding systems with Intel+NVIDIA, we'll have to work with partners
> > to
> > > > > > collect
> > > > > > > some information on the impact of reverting this.
> > > > > > >
> > > > > > > When this is used on a system with Intel+AMD the ASL configures AMD
> > GPU to
> > > > > > use
> > > > > > > "Hybrid Graphics" when on Windows and "Power Express" and
> > "Switchable
> > > > > > Graphics"
> > > > > > > when on Linux.
> > > > > >
> > > > > > and what's exactly the difference between those? And what's the actual
> > > > > > issue here?
> > > > >
> > > > > DP/HDMI is not detected unless plugged in at bootup.  It's due to missing
> > HPD
> > > > > events.
> > > > >
> > > >
> > > > afaik Lyude was working on fixing all that, at least for some drivers.
> > > > If there is something wrong, we still should fix the drivers, not
> > > > adding ACPI workarounds.
> > > >
> > > > Alex: do you know if there are remaining issues regarding that with amdgpu?
> > >
> > > There was an issue with hpd events not making it to the audio side
> > > when things were powered down that was fixed with this patch set:
> > > https://patchwork.freedesktop.org/patch/316793/
> > > Those patches depended on a bunch of alsa changes as well which may
> > > have not been available in the distro used for a particular OEM
> > > program.
> >
> > FYI, the corresponding commit for ALSA part is destined for 5.4
> > kernel:
> >
> > https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/commit/?id=ade
> > 49db337a9d44ac5835cfce1ee873549011b27
> >
> > BTW, Nouveau should suffer from the same problem.  The patch to add
> > the audio component support is found at:
> >   https://patchwork.freedesktop.org/patch/319131/
> >
> >
>
> It sounds like 5.3rcX won't be a useful check then.
>
> So am I correct to understand that everything related to the AMD failures
> described in this thread should be in linux-next at this point?
>

Assuming you mean the missing audio hotplug events, then yes.

Alex

  parent reply index

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-14 21:31 [PATCH 0/7] Adding a proper workaround for fixing RTD3 issues with Nouveau Karol Herbst
2019-08-14 21:31 ` [PATCH 1/7] Revert "ACPI / OSI: Add OEM _OSI string to enable dGPU direct output" Karol Herbst
2019-08-14 21:49   ` Alex Hung
2019-08-14 22:47   ` [Nouveau] " Dave Airlie
2019-08-15 13:55     ` Mario.Limonciello
2019-08-15 14:04       ` Karol Herbst
2019-08-15 14:13         ` Alex Deucher
2019-08-15 14:15           ` Karol Herbst
2019-08-15 14:17             ` Alex Deucher
2019-08-15 14:23               ` Mario.Limonciello
2019-08-15 14:35                 ` Karol Herbst
2019-08-15 14:41                 ` Alex Deucher
2019-08-15 14:19         ` Mario.Limonciello
2019-08-15 14:25           ` Karol Herbst
2019-08-15 14:34             ` Mario.Limonciello
2019-08-15 14:36               ` Karol Herbst
2019-08-15 14:37             ` Alex Deucher
2019-08-15 14:56               ` Takashi Iwai
2019-08-15 16:19                 ` Mario.Limonciello
2019-08-15 17:43                   ` Takashi Iwai
2019-08-15 18:34                   ` Alex Deucher [this message]
2019-08-15 14:59               ` Alex Deucher
2019-08-15 14:11     ` Daniel Vetter
2019-08-19  9:52     ` Rafael J. Wysocki
2019-08-14 21:31 ` [PATCH 2/7] Revert "ACPI / OSI: Add OEM _OSI string to enable NVidia HDMI audio" Karol Herbst
2019-08-14 21:31 ` [PATCH 3/7] Revert "ACPI / OSI: Add OEM _OSI strings to disable NVidia RTD3" Karol Herbst
2019-08-14 23:34   ` Alex Hung
2019-08-15  4:44     ` Karol Herbst
2019-08-14 21:31 ` [PATCH 4/7] drm/nouveau/pci: enable pcie link changes for pascal Karol Herbst
2019-08-14 21:31 ` [PATCH 5/7] drm/nouveau/pci: add nvkm_pcie_get_speed Karol Herbst
2019-08-14 21:31 ` [PATCH 6/7] drm/nouveau/pci: save the boot pcie link speed and restore it on fini Karol Herbst
2019-08-14 21:31 ` [PATCH 7/7] drm/nouveau: abort runtime suspend if we hit an error Karol Herbst

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