Thanks. It looks like "unplugged" is just what the GUI says when ALSA reports available as "no" or "unknown". So as a first step this sounds like a kernel change and not a problem with the configuration GUI. This possibly also rules out PulseAudio since I think we're seeing the same problem directly from the kernel.
Please try some newer or older kernels to see if any of them avoid the problem: https://kernel.ubuntu.com/~kernel-ppa/mainline/ If that's too much work then I suggest installing Ubuntu 18.04 instead. Or at least live boot it from USB just to test: http://cdimage.ubuntu.com/xubuntu/releases/18.04.3/release/ ** Summary changed: - external HDMI monitor always "unplugged" + External HDMI monitor audio always reported as "unplugged" ** Package changed: ubuntu => linux (Ubuntu) -- 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/1857821 Title: External HDMI monitor audio always reported as "unplugged" Status in linux package in Ubuntu: Incomplete Bug description: Hello my Ubuntu friends, I can no longer play sound over my external HDMI connected TV. The image displays perfectly, but all the HDMI output devices are listed as "unplugged" I have spent a huge amount of time trying every solution that Internet searching will bring but this has changed nothing. I have tired all available video drivers, including Xorg and NVIDEA 396.26, 340.107, and 384.130. This failure is recent because in the past I could play both audio and video through the HDMI connector. The laptop is dual boot with Windows 10 and the HDMI works perfectly on that OS, although I rarely use it... I am wondering if upgrading my Xubuntu to the latest LTS could potentially solve this issue, but I fear such an update since I depend on this computer and an outage would be very hard for me... Any thoughts would be great. Thanks for making Linux great! Bob ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3.1 ProcVersionSignature: Ubuntu 4.4.0-170.199-generic 4.4.200 Uname: Linux 4.4.0-170-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.21 Architecture: amd64 CurrentDesktop: XFCE Date: Sun Dec 29 17:00:14 2019 InstallationDate: Installed on 2015-05-11 (1693 days ago) InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1) SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1857821/+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
