Hmm, I just had a look in your alsa-info as well, and it shows entries like this:
[1788814.086727] [drm:drm_detect_monitor_audio], Monitor has basic audio support [1788814.086733] [drm:output_poll_execute], [CONNECTOR:14:HDMI-A-2] status updated from 1 to 1 [1788814.087245] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5143003e If you get strange entries in your dmesg when audio stops working, it looks like a kernel/hardware bug to me. Or did you repeatedly plug in and unplug your hdmi cable? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/884336 Title: [Oneiric] HDMI output does not work immediately To manage notifications about this bug go to: https://bugs.launchpad.net/pulseaudio/+bug/884336/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
