@cchen50, After debugging with Realtek (thank Kailiang@Realtek's help), we found 2 issues, the 1st one is about linux, the 2nd one is about the BIOS.
1st issue, we need to disable auto-mute (run alsamixer, find auto-mute, disable it), after this operation, nearly all machines could work except this P1G3. So P1G3 has the 2nd issue, after plugging the headset/headphone, the EC/BIOS will power down speaker unconditionally, so far, linux driver could do nothing to power it up. I am wondering how windows powers the speaker up or under windows the EC will not power the speaker down? Or maybe the BIOS version on the windows machine is different from the bios version on my machine? (on my machine: the bios version is N2VET22W(1.07) the EC version is N2VHT12W (1.01)) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1896098 Title: Lenovo P1G3 - unable to select system speakers when headset plugged into audio jack To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1896098/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
