I found some time to track down why ELD connector type was coming up as HDMI rather than DP. Posting to this bug, as was marked as duplicate. To revert to standard Ubuntu ALSA drivers type the following in a prompt shell: $ sudo ppa-purge ppa:oibaf/graphics-drivers To revert to standard Ubuntu graphics drivers type the following in a prompt shell: Paste this contecnt into the newly created file: Make this directory if it does not exist under /etc/X11:
Sudo apt-get update & sudo apt-get install oem-audio-hda-daily-dkmsĥ. Sudo add-apt-repository ppa:ubuntu-audio-dev/alsa-daily Add the ALSA PPA (all versions of Ubuntu up to 16.10, 17.04 NOT supported) Sudo add-apt-repository ppa:oibaf/graphics-driversĤ. Install the better user/groups gui to manage this: Add the following groups to your account: Sudo apt-get update & sudo apt-get upgradeĢ. Make sure that your system is up-to-date using the Update Manager. Check sound mixer settings & return them to HDMI/Display port/Stereo etc again.ġ. Note 4 : When sound via inevitably stops, Log out & back in. Note 3 : Keep your resolution no higher than 1920x1080 or no sound via HDMI again.
Note 2 : Ubuntu 16.10 is the most recent being packaged for by the ALSA PPA guys. Note 1 : The package 'oem-audio-hda-daily-dkms' does not exist in the Graphics drivers PPA. I've tried to document the process of getting sound via HDMI on Ubuntu 16.10 clearly for the next person.
Totem kills the sound reliably so uninstall it & use VLC. Breathe on it & sound stops working again.
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