I had a similar problem with my Dell Latitude 5289 using Ubuntu 17.10. After trying different things, I got it to work by using hdajackretask. I got a clue from norteo on this thread:
https://askubuntu.com/questions/926590/headphone-not-working-on- ubuntu-17-04-dell-xps-15 To get it to work for my specific setup, I ran hdajackretask, checked the box to "show unconnected pins," selected "override" for pin 0x21, and set it to "Headphone." I did not override or adjust any of the other pins. I realize you're using a different version of Ubuntu, but I hope this might help you or someone else using a Dell Latitude 5289. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1728093 Title: [16.04, ALC3253] Dell Latitude 5289 Combo Jack Does Not Recognize Devices To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1728093/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
