Public bug reported:
Ubuntu 20.10 (PopOS on a custom Skylake generation server, not System76)
Problem started occurring after upgrade from Ubuntu 20.04 to Ubuntu
20.10 PopOS. System never experienced this problem before that upgrade
and it's a 5 year old server.
Pulseaudio does not recognize speakers attached to green line-out port
of built-in analog card. This is temporarily corrected by restarting
pulseaudio service. However, upon next reboot the problem reoccurs.
Thus, requiring a pulseaudio restart after every reboot.
To reproduce problem:
1. Speakers plugged in (through green line-out port of built-in card) and
speakers are powered on
2. Restart Linux (either after hard power off, or reset, or soft reboot,
doesn't matter. BIOS changes do nothing.)
3. System comes up, and pulseaudio dashboard shows no built-in analog stereo
under "Output Devices"
4. Restart pulseaudio: systemctl --user restart pulseaudio.service
5. Pulseaudio dashboard now shows built-in analog stereo under "Output Devices"
CONFIGURATION INFORMATION:
cat /etc/issue
Pop!_OS 20.10
uname -a
Linux walkubu 5.8.0-7630-generic #32~1609193707~20.10~781bb80-Ubuntu SMP Tue
Jan 5 21:29:56 UTC 2 x86_64 x86_64 x86_64 GNU/Linux
arecord -L
null
Discard all samples (playback) or generate zero samples (capture)
default
Playback/recording through the PulseAudio sound server
samplerate
Rate Converter Plugin Using Samplerate Library
speexrate
Rate Converter Plugin Using Speex Resampler
jack
JACK Audio Connection Kit
oss
Open Sound System
pulse
PulseAudio Sound Server
upmix
Plugin for channel upmix (4,6,8)
vdownmix
Plugin for channel downmix (stereo) with a simple spacialization
hw:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
Direct hardware device without any conversions
hw:CARD=PCH,DEV=2
HDA Intel PCH, ALC1150 Alt Analog
Direct hardware device without any conversions
plughw:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
Hardware device with all software conversions
plughw:CARD=PCH,DEV=2
HDA Intel PCH, ALC1150 Alt Analog
Hardware device with all software conversions
sysdefault:CARD=PCH
HDA Intel PCH, ALC1150 Analog
Default Audio Device
front:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
Front output / input
dsnoop:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
Direct sample snooping device
dsnoop:CARD=PCH,DEV=2
HDA Intel PCH, ALC1150 Alt Analog
Direct sample snooping device
usbstream:CARD=PCH
HDA Intel PCH
USB Stream Output
hw:CARD=C525,DEV=0
HD Webcam C525, USB Audio
Direct hardware device without any conversions
plughw:CARD=C525,DEV=0
HD Webcam C525, USB Audio
Hardware device with all software conversions
sysdefault:CARD=C525
HD Webcam C525, USB Audio
Default Audio Device
front:CARD=C525,DEV=0
HD Webcam C525, USB Audio
Front output / input
dsnoop:CARD=C525,DEV=0
HD Webcam C525, USB Audio
Direct sample snooping device
usbstream:CARD=C525
HD Webcam C525
USB Stream Output
usbstream:CARD=NVidia
HDA NVidia
USB Stream Output
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1913632
Title:
Ubuntu 20.10 Pulseaudio won't recognize audio line-out until
pulseaudio restarted
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