I recently upgraded from 12.10 to 13.04 and ever since the upgrade the audio from my HDMI has not been working. It doesn't show up in the sound options as it did in 12.10 and it doesn't show up when running lspci. Futhermore, the HDMI has a hard time being recognized at all; meaning that it doesn't always add a video connection and instead doesn't react at all.
I haven't seen anyone else with the video problem. But i tried installing
oem-audio-hda-daily-dkms_0.201305051134~raring1_all.deb from ALSA daily build snapshots as suggested here: No sound via HDMI to try and fix the audio but with no luck.
I'm using a Lenovo B570, with an intel i5 2410M, intel HD 3000.
Do you have any suggestions?