Per comment #17, it sounds like this was just a kernel regression.
** Summary changed:
- 19.04 Built in Intel HDA sound is disabled upon resume
+ 19.04 Built in Intel HDA sound is disabled upon resume (fails in kernel 5.0.0
but works in 4.20.17)
** No longer affects: pulseaudio (Ubuntu)
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If your issue is just timidity then that is bug 1793640.
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https://bugs.launchpad.net/bugs/1822426
Title:
19.04 Built in Intel HDA sound is disabled upon resume
FWIW, I ran into this after updating to 19.04 from 18.04.
Audio working fine with HDMI (yay) but not with back panel audio (boo)
unless I ran aplay as root, e.g.
sudo aplay -D sysdefault:CARD=PCH /usr/share/sounds/alsa/Front_Left.wav
ps showed timidity running. 'sudo apt remove timidity; sudo
Sound is still working today with the 4.20.17 kernel. I will give it
another day before I draw any conclusions.
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Title:
uname -a: Linux Imagined 4.20.17-042017-generic
NVIDIA Driver Version: 418.56
Resumed 3 times from sleep with the 4.20 kernel, so far sound is working
fine.
Sometimes the issues does not appear until the next day (warm vs cold
hw?), so I will report back tomorrow.
If sound works for next few
Darin,
In that case please follow comment #6, and comment #13.
** Changed in: pulseaudio (Ubuntu)
Status: New => Incomplete
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I still lost sound after setting "realtime-scheduling = no" in
/etc/pulse/daemon.conf.
Previous kernels have worked fine with this hw.
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According to the log, when problem happens, the Nvidia hdmi codec
doesn't response the HDA controller, Usually it is nvidia graphic
driver's issue.
Let us disable the nvidia hdmi audio temporarily and see if this problem
still exists?
edit /proc/modprobe.d/alsa-base.conf and add "options
Cristian,
And if your issue is just timidity then that is bug 1793640.
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Title:
19.04 Built in Intel HDA sound is disabled
Cristian,
Please log that issue as a new bug by running:
ubuntu-bug pulseaudio
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Title:
19.04 Built in Intel HDA sound is
Looks like my problem was unrelated to this issue, it was actually
caused by timidity blocking the physical sound device.
This workaround fixed it: https://askubuntu.com/questions/1085174/no-
sound-after-upgrade-to-18-10-only-a-dummy-device-is-shown
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I also noticed this, my laptop's integrated Intel audio device is also
missing from pulseaudio(both as input and output), but I can see other
HDMI or USB sound devices I may have attached and I can switch to them
and they work as expected.
Interestingly the device works when playing a WAV file
Can you please try some older kernel versions and tell us if any of
those avoid the bug?
https://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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You
Separately, the "tick" and "thud" may be related to bug 1821663.
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Title:
19.04 Built in Intel HDA sound is disabled upon
Please also try step 2 from comment #2.
** Changed in: pulseaudio (Ubuntu)
Status: Incomplete => New
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Title:
19.04
Thanks. It looks like the audio driver in the kernel is broken/confused
by suspend and resume:
Apr 02 21:18:48 Imagined kernel: snd_hda_intel :01:00.1: spurious response
0x0:0x0, last cmd=0x1f0500
Apr 02 21:18:48 Imagined kernel: snd_hda_intel :01:00.1: spurious response
0x0:0x0, last
Journal file when sound failed after resume.
** Attachment added: "journal.txt"
https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1822426/+attachment/5252628/+files/journal.txt
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Not sure if recent updates have fixed the issue, but problem has not
appeared after several sleep and awake events. I will ensure to post
details and try the above edit if problem recurs.
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1. Please reproduce the problem and then while sound is not working run:
journalctl -b0 > journal.txt
and send us the file 'journal.txt'.
2. Please try editing /etc/pulse/daemon.conf and add a new line:
realtime-scheduling = no
and reboot. Does that fix it?
** Changed in:
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