I just tested with the latest custom kernel shared here and with this updated pulseaudio package and can confirm speakers and headphones have separate volume now.
Thanks a lot again, I guess all of the major 3 initially mentioned and 1 extra issues are solved now and hope the 3 ucm realted very minor issues will be refined in future. So, now only thing remaining is to get these fixes in official ubuntu kernel and pulseaudio package I guess, also I am not sure if it's safe to keep using the custom kernel/pulseaudio driver or wait till it arrives officially and meanwhile keep using temp fix for now. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1930188 Title: Acer Aspire 5 sound driver issues Status in linux package in Ubuntu: New Bug description: Hello, There seems to be lots of issues in sound driver for Acer Aspire A515-56-57XR with ALC255. I will list all of them below and what I have tried so far. 1. Headphones appears always plugged in even if they are physically not 2. When actually plugging in headset/earphones it does not auto switch from speakers/internal mic to headphones/headset microphone automatically and vice versa, have to manually switch everytime. 3. External headset/earphones microphone won't work at all After, logs of trial and error I have found a temporary fix. This seems to use legacy intel drivers which solves all 3 issues mentioned above but the internal/dmic mic is completely gone (which seems intentional when using this). Both depreciated dmic_detect and dsp_driver works, I have been using dsp_driver for now as I need external microphone at any cost. End of /etc/modprobe.d/alsa-base.conf # Headset mic fix options snd-hda-intel dmic_detect=0 / options snd-intel-dspcfg dsp_driver=1 options snd-hda-intel model=alc255-acer In another thread similar to this I got some support and at least fixed the external microphone without using the alsa-base.conf change in custom modified kernel. I will attach it here. Now, hoping to fix other issues as well slowly like making headphones unplugged when physically removing as well as auto switching like the legacy driver one. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1930188/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp