My output sound device "Lenovo Family 17h" worked well in Ubuntu 20.04.
"System => Sound => Output Device" shows only "Dummy Output".
device: IdeaPad-5-14ARE05
Checked it with different kernels and it is not kernel related
problem since upgrade of libasound, so we set back to older version
My output sound device "Lenovo Family 17h" worked well in Ubuntu 20.04.
"System => Sound => Output Device" shows only "Dummy Output".
device: IdeaPad-5-14ARE05
Checked it with different kernels and it is not kernel related
problem since upgrade of libasound, so we set back to older version
cat /prod/asound/cards
0 [Generic ]: HDA-Intel - HD-Audio Generic
HD-Audio Generic at 0xd04c8000 irq 90
HD-Audio Generic at 0xd04c0000 irq 91
LENOVO- 81YM-IdeaPad514 ARE05-LNVNB1612 16
1 [Generic_1 ]: HDA-Intel - HD-Audio Generic
2 [acp ]: acp - acp
we figured it to be no pulse problem but with alsa
solution:
sudo apt install libasound2= 1.2.2-2. 1 libasound2- data=1. 2.2-2.1 libasound2: i386=1. 2.2-2.1 libatopology2= 1.2.2-2. 1
to prevent from upgrades again:
echo libasound2 hold | sudo dpkg --set-selections