I am having this problem (only dummy output) on ubuntu 19.10 with linux kernel
5.3.0.45.38. After booting I can make the output show up and work by running
pulseaudio -k && sudo alsa force-reload
Maybe that workaround helps other people suffering from this problem until a
fix is available.
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Y
I have had this on 19.10 (see https://bugs.launchpad.net/ubuntu/+source
/linux-oem-osp1/+bug/1864061/comments/42) and on 20.04.
Adding "options snd-hda-intel dmic_detect=0" to the end of
/etc/modprobe.d/alsa-base.conf has apparently fixed the issue on 20.04
(microphone is still working).
I probab
Public bug reported:
After booting the system the internal laptop speakers and the internal
microphone are sometimes not detected, pavucontrol only shows a "Dummy Output".
They were working fine under ubuntu 18.04, stopped working after upgrading to
19.10 and are still not working under 20.04.
H
apport information
** Attachment added: "AlsaInfo.txt"
https://bugs.launchpad.net/bugs/1880571/+attachment/5376560/+files/AlsaInfo.txt
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** Attachment added: "Lspci-vt.txt"
https://bugs.launchpad.net/bugs/1880571/+attachment/5376566/+files/Lspci-vt.txt
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I had thought that appending
options snd-hda-intel dmic_detect=0
to /etc/modprobe.d/alsa-base.conf
had fixed the problem. But the problem has since reappeared.
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** Description changed:
After booting the system the internal laptop speakers and the internal
microphone are sometimes not detected, pavucontrol only
Seeing 'timidity' in the data collected by apport I have just
uninstalled timidity. This has immediately restored the availability of
the sound output. Also after rebooting, sound output is working again (I
have since rebooted twice).
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As asked by @Hui Wang, I have created a separate bug #1880571 for my
problem on focal fossa and run apport-collect. As the data collected by
apport showed that timidity was running I have uninstalled timidity and
this seems to have fixed the problem: audio output was immediately
restored, and after
** Also affects: timidity (Ubuntu)
Importance: Undecided
Status: New
** Changed in: alsa-driver (Ubuntu)
Status: New => Invalid
** Changed in: pulseaudio (Ubuntu)
Status: New => Invalid
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