From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 101900] No HDMI HBR audio on Polaris (no TrueHD, no Atmos, no Neo:X, no HD Master audio) and static noise in sound when LPCM Date: Fri, 12 Jan 2018 17:53:28 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0074969802==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 4E6C36E940 for ; Fri, 12 Jan 2018 17:53:28 +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 --===============0074969802== Content-Type: multipart/alternative; boundary="15157796085.Fc5b95Ee.22171" Content-Transfer-Encoding: 7bit --15157796085.Fc5b95Ee.22171 Date: Fri, 12 Jan 2018 17:53:28 +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=3D101900 --- Comment #23 from Alex Deucher --- (In reply to lethalwp from comment #22) > Thank you for the printks. >=20 > If the code is only ran at initialization of gpu: >=20 > could this explain the lpcm noise issue?: The reserved bandwidth at gpu i= nit > isn't enough anymore when video+more audio comes through? The audio configuration only needs to run once per modeset. It basically j= ust=20 forwards the display info to the audio device and tells the audio device wh= at it can support given the current display mode and enables the audio stream within the display stream. At that point, the display device is just a con= duit for the audio device. --=20 You are receiving this mail because: You are the assignee for the bug.= --15157796085.Fc5b95Ee.22171 Date: Fri, 12 Jan 2018 17:53:28 +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

Comme= nt # 23 on bug 10190= 0 from Alex Deucher 
(In reply to lethalwp from comment #22)
> Thank you for the printks.
>=20
> If the code is only ran at initialization of gpu:
>=20
> could this explain the lpcm noise issue?: The reserved bandwidth at gp=
u init
> isn't enough anymore when video+more audio comes through?

The audio configuration only needs to run once per modeset.  It basically j=
ust=20
forwards the display info to the audio device and tells the audio device wh=
at
it can support given the current display mode and enables the audio stream
within the display stream.  At that point, the display device is just a con=
duit
for the audio device.

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