Similar symptoms here; audio over HDMI worked fine until update yesterday. Hardware: Intel NUC D34010WYK CPU: i3-4010U Firmware: WYLPT10H.86A.0038.2015.0410.1634
Software: Kubuntu 15.04 Kernel: 3.19.0-18-generic Architecture: x86_64 Processor: x86_64 SMP Enabled: Yes ALSA Driver version: k3.19.0-18-generic Library version: 1.0.28 Utilities version: 1.0.28 Loaded ALSA modules: snd_hda_intel Also reported at Ubuntu forum. http://ubuntuforums.org/showthread.php?t=2279520 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1458301 Title: No more HDMI audio output visible/working snd_hda_intel Cannot turn on display power on i915 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1458301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs