If you have an Nvidia GPU in this laptop then it's possible and even
likely the HDMI port is wired to Nvidia and not Intel. This means the
feature depends on the Nvidia driver installed.
When you say:
> but all the HDMI output devices are listed as "unplugged"
can you please explain what you are looking at there?
** Package changed: xorg (Ubuntu) => ubuntu
** Changed in: ubuntu
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1857821
Title:
external HDMI monitor always "unplugged"
Status 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)
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