A few days ago, everything with my HDMI was working fine - sound and video. Yesterday, PulseAudio Volume Control no longer detects HDMI output as an audio output - video still works fine. I don't think I changed any programs or files that would effect this, but running alsamixer now says cannot open mixer: no such file or directory. How do I make alsamixer and PulseAudio work again?

Screenshots: Upgraded and uninstalled programs since it last worked: Software Center Changes

PulseAudio Output Devices: (Should have digital option) PulseAudio


Looks like you hit the bug https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1457369.

It will be fixed in 3.19.0-20.20 which will be released the end of this week. If you can't wait, you can either downgrade your kernel or grab 3.19.0-20.20 from trusty-proposed (see https://wiki.ubuntu.com/Testing/EnableProposed)

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.