Well I'm stuck, so I thought I'd share my woes to see if anyone had a magic trick i've missed. The short story: My Storage Server / HTPC was getting a bit long in the tooth, so I decided to update the distro from Ubuntu 10.04 to 12.04 Desktop. This update happened without any issues, except that sound won't play out the HDMI anymore. The HDMI being delivered by an Nvidia 8400 GS card. Linux is not showing any Nvidia Audio devices, but some forums have suggested this isn't the case with cards that don't have their own Sound chip and instead passthrough audio from a cable plugged into the motherboards S/PDIF header (which mine does). Audio DOES work through analog output. (I can plug headphones in and get sound out) I've tried everycombination of device I can think of. Everytime I swap to a digital device the audio cuts out, nothing to be heard on the TV. This used to work before the upgrade, so I don't know what's changed. Any assistance would be much appreciated. Below is the results of all my testing. ~$ lspci | grep -i audio 00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05) :~$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC889 Analog [ALC889 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: Intel [HDA Intel], device 1: ALC889 Digital [ALC889 Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 ~$ aplay -L null Discard all samples (playback) or generate zero samples (capture) pulse PulseAudio Sound Server default Playback/recording through the PulseAudio sound server sysdefault:CARD=Intel HDA Intel, ALC889 Analog Default Audio Device front:CARD=Intel,DEV=0 HDA Intel, ALC889 Analog Front speakers surround40:CARD=Intel,DEV=0 HDA Intel, ALC889 Analog 4.0 Surround output to Front and Rear speakers surround41:CARD=Intel,DEV=0 HDA Intel, ALC889 Analog 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=Intel,DEV=0 HDA Intel, ALC889 Analog 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=Intel,DEV=0 HDA Intel, ALC889 Analog 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=Intel,DEV=0 HDA Intel, ALC889 Analog 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers iec958:CARD=Intel,DEV=0 HDA Intel, ALC889 Digital IEC958 (S/PDIF) Digital Audio Output dmix:CARD=Intel,DEV=0 HDA Intel, ALC889 Analog Direct sample mixing device dmix:CARD=Intel,DEV=1 HDA Intel, ALC889 Digital Direct sample mixing device dsnoop:CARD=Intel,DEV=0 HDA Intel, ALC889 Analog Direct sample snooping device dsnoop:CARD=Intel,DEV=1 HDA Intel, ALC889 Digital Direct sample snooping device hw:CARD=Intel,DEV=0 HDA Intel, ALC889 Analog Direct hardware device without any conversions hw:CARD=Intel,DEV=1 HDA Intel, ALC889 Digital Direct hardware device without any conversions plughw:CARD=Intel,DEV=0 HDA Intel, ALC889 Analog Hardware device with all software conversions plughw:CARD=Intel,DEV=1 HDA Intel, ALC889 Digital Hardware device with all software conversions ~$ lsmod | grep -i snd snd_hda_codec_realtek 224173 1 snd_hda_intel 33773 2 snd_hda_codec 127706 2 snd_hda_codec_realtek,snd_hda_intel snd_usb_audio 122982 1 snd_pcm 97188 3 snd_hda_intel,snd_hda_codec,snd_usb_audio snd_hwdep 13668 2 snd_hda_codec,snd_usb_audio snd_usbmidi_lib 25395 1 snd_usb_audio snd_seq_midi 13324 0 snd_rawmidi 30748 2 snd_usbmidi_lib,snd_seq_midi snd_seq_midi_event 14899 1 snd_seq_midi snd_seq 61896 2 snd_seq_midi,snd_seq_midi_event snd_timer 29990 2 snd_pcm,snd_seq snd_seq_device 14540 3 snd_seq_midi,snd_rawmidi,snd_seq snd 78855 17 snd_hda_codec_realtek, snd_hda_intel, snd_hda_codec, snd_usb_audio, snd_pcm, snd_hwdep, snd_usbmidi_lib, snd_rawmidi, snd_seq, snd_timer, snd_seq_device soundcore 15091 1 snd snd_page_alloc 18529 2 snd_hda_intel,snd_pcm ~$ lspci | grep -i Nvidia 01:00.0 VGA compatible controller: NVIDIA Corporation G98 [GeForce 8400 GS] (rev a1) alsamixer is showing all outputs unmuted and volume turned up where it can. ------------------------------------------------------------------------------ Monitor your physical, virtual and cloud infrastructure from a single web console. Get in-depth insight into apps, servers, databases, vmware, SAP, cloud infrastructure, etc. Download 30-day Free Trial. Pricing starts from $795 for 25 servers or applications! http://p.sf.net/sfu/zoho_dev2dev_nov _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
