playback fails using alsa in mpd

[Kev Bowring]

Using 4.11.0-10.15 kernel from playback fails using this mpd.conf

##Pulseaudio
#audio_output {
# type "pulse"
# name "Local MPD"
# server "127.0.0.1"
#}

##Alsa
audio_output {
        type "alsa"
 name "Cambridge Audio DAC100 USB 2 - USB Audio"
 device "hw:1,0"
 auto_resample "no"
 auto_format "no"
 auto_channels "no"
 replay_gain_handler "none"
 mixer_type "none"
}

If I reboot into 4.10.0-26 then playback with alsa works.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: linux-image-4.11.0-10-generic 4.11.0-10.15
ProcVersionSignature: Ubuntu 4.11.0-10.15-generic 4.11.8
Uname: Linux 4.11.0-10-generic x86_64
ApportVersion: 2.20.5-0ubuntu5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: wolf 1742 F.... pulseaudio
 /dev/snd/pcmC1D0p: wolf 1742 F...m pulseaudio
 /dev/snd/controlC1: wolf 1742 F.... pulseaudio
CurrentDesktop: XFCE
Date: Fri Jul 14 20:27:17 2017
HibernationDevice: RESUME=UUID=9f10a8f1-df29-4691-b2cc-7fbe68244587
MachineType: NOVATECH LTD MBB-44608
ProcFB: 0 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.11.0-10-generic root=UUID=c81d4267-4905-4511-9011-d51db8eb0c3a ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.11.0-10-generic N/A
 linux-backports-modules-4.11.0-10-generic N/A
 linux-firmware 1.167
RfKill:

SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/19/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F5
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: H81M-DS2V
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: To be filled by O.E.M.
dmi.chassis.asset.tag: 7383241-001
dmi.chassis.type: 3
dmi.chassis.vendor: NOVATECH LTD
dmi.chassis.version: V1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF5:bd06/19/2014:svnNOVATECHLTD:pnMBB-44608:pvrV1.0:rvnGigabyteTechnologyCo.,Ltd.:rnH81M-DS2V:rvrTobefilledbyO.E.M.:cvnNOVATECHLTD:ct3:cvrV1.0:
dmi.product.name: MBB-44608
dmi.product.version: V1.0
dmi.sys.vendor: NOVATECH LTD

[Kev Bowring (flocculant)]

appears to be intermittent - experimented with kernel from artful proposed reverting to using alsa, that worked. rebooted to 4.11.0-10.15 and it works again.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.12 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.13-rc1/

[Kev Bowring (flocculant)]

@jsalisbury - I will try - but it appears to be rather intermittent - so not actually convinced of where the issue is.

[Kev Bowring (flocculant)]

@jsalisbury - mea culpa ... I'd set grub to

GRUB_DEFAULT=saved
GRUB_SAVEDEFAULT=true

and have been booting with kernel which works ...

[Kev Bowring (flocculant)]

Had time to test this a bit further.

 4.11.0-11-generic

start pc > cantata/mpd not playing
         > use application using pulseaudio (parole) music plays
         > close app and start cantata
         > cantata now plays music

reboot pc
         > cantata now plays music after ~1 second wait

shutdown/restart pc
         > cantata not playing until pulseaudio used elsewhere

 4.13.0-041300rc1-generic

start pc > cantata/mpd not playing
         > use application using pulseaudio (parole) music plays
         > close app and start cantata
         > cantata now plays music

reboot pc
         > cantata now plays music after ~1 second wait

shutdown/restart pc
         > cantata not playing until pulseaudio used elsewhere

[Launchpad Janitor (janitor)]

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