From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 75985] [NVC1] HDMI audio device only visible after rescan Date: Wed, 07 Mar 2018 12:04:38 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0644496379==" Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Nouveau" To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org --===============0644496379== Content-Type: multipart/alternative; boundary="15204242774.88bbAF5b.13321" Content-Transfer-Encoding: 7bit --15204242774.88bbAF5b.13321 Date: Wed, 7 Mar 2018 12:04:37 +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=3D75985 --- Comment #59 from Peter Wu --- (In reply to Lukas Wunner from comment #51) > On my GK107 I do not see any change in power consumption regardless wheth= er > bit 25 at config space offset 0x488 is set or cleared, which is somewhat > disappointing. I also do not see a change in power consumption between PCI > power state D0 and D3hot. Was this your macbook or a regular laptop? The Kepler family still used an = ACPI _DSM method to remove power, setting the PM bit in the PCI config space did= not do anything (this was at least true for my older Fermi card). Possibly relevant for this bug: I tested Lukas devlink_v2 patches but found some issues when the HDMI/DP cable was disconnected on a GTX 965M (where by default the audio function would not be visible): https://lists.freedesktop.org/archives/nouveau/2018-March/029988.html Do you also experience issues after these steps: 1. remove+rescan to make audio function appear 2. remove GPU power (runtime PM or system sleep) 3. remove HDMI/DP cable 4. restore power 5. check dmesg or try to access audio function (e.g. read PCI regs) --=20 You are receiving this mail because: You are the assignee for the bug.= --15204242774.88bbAF5b.13321 Date: Wed, 7 Mar 2018 12:04:37 +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 # 59 on bug 75985<= /a> from Peter Wu 
(In reply to Lukas Wunner from comment #51)
> On my GK107 I do not see any change in power con=
sumption regardless whether
> bit 25 at config space offset 0x488 is set or cleared, which is somewh=
at
> disappointing. I also do not see a change in power consumption between=
 PCI
> power state D0 and D3hot.

Was this your macbook or a regular laptop? The Kepler family still used an =
ACPI
_DSM method to remove power, setting the PM bit in the PCI config space did=
 not
do anything (this was at least true for my older Fermi card).


Possibly relevant for this bug: I tested Lukas devlink_v2 patches but found
some issues when the HDMI/DP cable was disconnected on a GTX 965M (where by
default the audio function would not be visible):
https://lists.freedesktop.org/archives/nouveau/2018-March/029988.htm=
l

Do you also experience issues after these steps:
1. remove+rescan to make audio function appear
2. remove GPU power (runtime PM or system sleep)
3. remove HDMI/DP cable
4. restore power
5. check dmesg or try to access audio function (e.g. read PCI regs)

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