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Date:      Wed, 30 Sep 2020 16:40:18 +0000
From:      bugzilla-noreply@freebsd.org
To:        ports-bugs@FreeBSD.org
Subject:   [Bug 250009] graphics/drm-fbsd12.0-kmod: sound unusable on DisplayPort after DPMS or screen OFF/ON.
Message-ID:  <bug-250009-7788@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D250009

            Bug ID: 250009
           Summary: graphics/drm-fbsd12.0-kmod: sound unusable on
                    DisplayPort after DPMS or screen OFF/ON.
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: Individual Port(s)
          Assignee: x11@FreeBSD.org
          Reporter: jc@michot.fr
             Flags: maintainer-feedback?(x11@FreeBSD.org)
          Assignee: x11@FreeBSD.org

# uname -a
FreeBSD flash2.usenet-fr.net 12.1-RELEASE-p6 FreeBSD 12.1-RELEASE-p6 GENERI=
C=20
amd64

# pkg info | grep drm-fbsd
drm-fbsd12.0-kmod-4.16.g20200221 DRM modules for the linuxkpi-based KMS
components

My drivers is patched to support CPU: Intel(R) Core(TM) i7-9700 Intel Kaby =
Lake
i just add the line INTEL_VGA_DEVICE(0x3E98, info), /* SRV GT2 */ in file
i915_pciids.h


=3D> boot

Sep 26 00:17:25 flash2 kernel: hdacc2: <Intel Kaby Lake HDA CODEC> at cad 2=
 on
hdac1
Sep 26 00:17:25 flash2 kernel: hdaa2: <Intel Kaby Lake Audio Function Group=
> at
nid 1 on hdacc2

=3D> audio over DisplayPort is OK.

=3D> off/on screen =3D> no audio on DisplayPort (screen speaker)
Sep 26 02:49:44 flash2 kernel: hdacc2: Unexpected unsolicited response with=
 tag
63: ffffffff
Sep 26 02:49:45 flash2 kernel: hdacc2: Unexpected unsolicited response with=
 tag
63: ffffffff

=3D> reboot =3D> audio over DisplayPort is OK.

=3D> xset dpms force suspend =3D> same result no audio on DisplayPort
Sep 26 03:18:40 flash2 kernel: hdacc2: Unexpected unsolicited response with=
 tag
63: ffffffff


Each time i got: " hdacc2: Unexpected unsolicited response with tag 63:
ffffffff " the audio
become unsuable from screen connected by DisplayPort. (43" IIAYMA ProLite
X4372UHSU).

The audio from rear jack connector still usable (tested with headphone),=20
but as my real loud speaker are in screen... over DisplayPort.

--=20
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