FreeBSD BSD_12 12.0-CURRENT FreeBSD 12.0-CURRENT #12 r331138: Sun Mar 18
15:09:37 EDT 2018
root@BSD_12:/usr/obj/usr/src/amd64.amd64/sys/MYKERNEL amd64
I recently started to see strange behavior on 2 different machines and was
wondering if anyone else has run into it. Within the last few days, I
have been experiencing a reproduceable problem with sound. It happens in
VLC and also in Virtualbox watching video in a browser.
I get the following log entry:
Mar 18 18:10:26 BSD_12 kernel: pcm1: chn_write(): pcm1:virtual:dsp1.vp0:
play interrupt timeout, channel dead
and then sound is dead in all applications. Any ideas what to do?
I tried the following:
rebuilt world and kernel several times
rebuilt libvorbis
rebuilt ffmpeg
rebuilt vlc
rebuilt Vbox and kmod
The only thing I can think of as a possible issue is an update to
libvorbis recently, cc'ing ports just in case.
Is there a way to restart the audio subsystem without rebooting the
machine? Is there anymore info I can provide to troubleshoot?
# dmesg | grep pcm
pcm0: <ATI R6xx (HDMI)> at nid 3 on hdaa0
pcm1: <Realtek ALC892 (Rear Analog 7.1/2.0)> at nid 20,22,21,23 and 24,26
on hdaa1
pcm2: <Realtek ALC892 (Front Analog)> at nid 27 and 25 on hdaa1
pcm1: chn_write(): pcm1:virtual:dsp1.vp0: play interrupt timeout, channel
dead
# pciconf -lv
hostb0@pci0:0:0:0: class=0x060000 card=0x7a341462 chip=0x14501022
rev=0x00 hdr=0x00
vendor = 'Advanced Micro Devices, Inc. [AMD]'
device = 'Family 17h (Models 00h-0fh) Root Complex'
class = bridge
subclass = HOST-PCI
hdac0@pci0:34:0:1: class=0x040300 card=0xaa681545 chip=0xaa681002
rev=0x00 hdr=0x00
vendor = 'Advanced Micro Devices, Inc. [AMD/ATI]'
device = 'Cedar HDMI Audio [Radeon HD 5400/6300/7300 Series]'
class = multimedia
subclass = HDA
hdac1@pci0:36:0:3: class=0x040300 card=0xda341462 chip=0x14571022
rev=0x00 hdr=0x00
vendor = 'Advanced Micro Devices, Inc. [AMD]'
device = 'Family 17h (Models 00h-0fh) HD Audio Controller'
class = multimedia
subclass = HDA
Thanks in advance for any advice.
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