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, 27 Dec 2017 17:35:20 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1039974294==" 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 --===============1039974294== Content-Type: multipart/alternative; boundary="15143961193.770C3Ead.6808"; charset="UTF-8" --15143961193.770C3Ead.6808 Date: Wed, 27 Dec 2017 17:35:19 +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 #25 from Daniel Drake --- I found the difference. When I previously tested and found HDMI audio to be working after the setpci,unload,rescan approach, I was using the nvidia proprietary driver. HDMI audio PCI device was then detected, the ELD files = show the monitor detected, and HDMI audio works. In the patch above, I am using nouveau. The HDMI audio PCI device is now detected automatically, the HDMI video output is working and active, but the ELD files show that no HDMI monitor was detected on the audio side. I checked with HDA verbs directly: # hda-verb /dev/snd/hwC1D0 6 GET_PIN_SENSE 0 With the setpci+unload+rescan approach on nouveau, this always returns valu= e 0, even with HDMI video output active and working. With the setpci+unload+rescan approach on nvidia's proprietary drivers, this returns 0 after loading the modules. However upon starting X, it starts returning 0xc0000000 and HDMI audio output works fine. So in addition to the games with the magic register, the nvidia proprietary driver is doing something else as well which is needed to make HDMI audio w= ork. --=20 You are receiving this mail because: You are the assignee for the bug.= --15143961193.770C3Ead.6808 Date: Wed, 27 Dec 2017 17:35:19 +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 # 25 on bug 75985<= /a> from Daniel Drake 
I found the difference. When I previously tested and found HDM=
I audio to be
working after the setpci,unload,rescan approach, I was using the nvidia
proprietary driver. HDMI audio PCI device was then detected, the ELD files =
show
the monitor detected, and HDMI audio works.

In the patch above, I am using nouveau. The HDMI audio PCI device is now
detected automatically, the HDMI video output is working and active, but the
ELD files show that no HDMI monitor was detected on the audio side.

I checked with HDA verbs directly:
# hda-verb /dev/snd/hwC1D0 6 GET_PIN_SENSE 0

With the setpci+unload+rescan approach on nouveau, this always returns valu=
e 0,
even with HDMI video output active and working.

With the setpci+unload+rescan approach on nvidia's proprietary drivers, this
returns 0 after loading the modules. However upon starting X, it starts
returning 0xc0000000 and HDMI audio output works fine.

So in addition to the games with the magic register, the nvidia proprietary
driver is doing something else as well which is needed to make HDMI audio w=
ork.

You are receiving this mail because:
  • You are the assignee for the bug.
= --15143961193.770C3Ead.6808-- --===============1039974294== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KTm91dmVhdSBt YWlsaW5nIGxpc3QKTm91dmVhdUBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5m cmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9ub3V2ZWF1Cg== --===============1039974294==--