Default User wrote: > [ 0.160240] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) > [ 7.598040] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops > i915_audio_component_bind_ops [i915]) > [ 7.673391] snd_hda_codec_generic hdaudioC0D0: autoconfig for Generic: > line_outs=1 (0x2c/0x0/0x0/0x0/0x0) type:speaker > [ 7.673393] snd_hda_codec_generic hdaudioC0D0: speaker_outs=0 > (0x0/0x0/0x0/0x0/0x0) > [ 7.673394] snd_hda_codec_generic hdaudioC0D0: hp_outs=1 > (0x24/0x0/0x0/0x0/0x0) > [ 7.673395] snd_hda_codec_generic hdaudioC0D0: mono: mono_out=0x0 > [ 7.673396] snd_hda_codec_generic hdaudioC0D0: inputs:
The kernel is happy with the sound card. > And here is the output of aplay -l: > > **** List of PLAYBACK Hardware Devices **** > card 0: PCH [HDA Intel PCH], device 0: Generic Analog [Generic Analog] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0] > Subdevices: 1/1 > Subdevice #0: subdevice #0 ALSA believe that there are two audio systems: a motherboard audio jack and a video-card HDMI that can play audio that way. Here's a laptop that I have: **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: VT1802 Analog [VT1802 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 2: VT1802 Alt Analog [VT1802 Alt Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: AUDIO [SMSL USB AUDIO], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 You can see that it has a first set of jacks, an alternate set, an HDMI output, and a USB-attached sound card (DAC). > I did try using alsamixer, but using F6 to choose "default", which shows > both card and chip as "PulseAudio" and then F5 to "show all controls", did > nothing. Both the Master and Capture controls were set to 100. Below the > Master scale, it showed "OO" (not muted). Below the Capture scale, it did > not have a similar "block" to show either "OO" or "MM" (muted). Capture is for the recording side. That's normal. > Using F6 to choose "0 HDA Intel PCH", which shows card as "HDA Intel PCH" > and chip as "Cirrus Logic Generic", then F5 to "show all controls", also > did nothing. The "PCM" control was set to 100. The "PCM" control scale did > not have a "block" to show either "OO" or "MM" (muted). Also visible were > entries for "S/PDIF, then "S/PDIF 1", "S/PDIF 2" and so on through "S/PDIF > 10" , all of which had a "block" showing "OO", but no "scale". Those are almost certainly on/off controls for the various HDMI outputs. Do you really have 10 physical HDMI or DisplayPort outputs? I would say your problems are related to PulseAudio and mixer controls. Most likely PulseAudio is trying to send sound via one of the HDMI outputs, or it's otherwise confused about where to send audio. -dsr-