Sound was working great on 14, but after upgrade to 16, there is not sound.
aplay seems to find the sound card:
$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC3235 Analog [ALC3235 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 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2] Subdevices: 1/1 Subdevice #0: subdevice #0
Per advice on other threads, I reinstalled alsa-base and pulseaudio
On alsamixer (and gnome-alsamixer) the speaker is not muted.
On system settings-->audio, the "Play sound through" box is blank, and the mute box is not checked.
$ uname -r 4.4.0-139-generic $ find /lib/modules/$(uname -r) | grep snd
shows plenty of drivers
======== Here is what dmesg shows:
$ dmesg | grep -iE 'snd|hda' [ 5.291111] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915_bpo]) [ 5.375131] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC3235: line_outs=1 (0x16/0x0/0x0/0x0/0x0) type:line [ 5.375139] snd_hda_codec_realtek hdaudioC0D0: speaker_outs=1 (0x14/0x0/0x0/0x0/0x0) [ 5.375142] snd_hda_codec_realtek hdaudioC0D0: hp_outs=1 (0x15/0x0/0x0/0x0/0x0) [ 5.375144] snd_hda_codec_realtek hdaudioC0D0: mono: mono_out=0x0 [ 5.375146] snd_hda_codec_realtek hdaudioC0D0: inputs: [ 5.375148] snd_hda_codec_realtek hdaudioC0D0: Headphone Mic=0x18 [ 5.375150] snd_hda_codec_realtek hdaudioC0D0: Dock Mic=0x19 [ 5.375153] snd_hda_codec_realtek hdaudioC0D0: Headset Mic=0x1a [ 5.375155] snd_hda_codec_realtek hdaudioC0D0: Internal Mic=0x13 [ 5.423487] input: HDA Intel PCH Headphone Mic as /devices/pci0000:00/0000:00:1f.3/sound/card0/input11 [ 5.423550] input: HDA Intel PCH Dock Mic as /devices/pci0000:00/0000:00:1f.3/sound/card0/input12 [ 5.423604] input: HDA Intel PCH Dock Line Out as /devices/pci0000:00/0000:00:1f.3/sound/card0/input13 [ 5.423658] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input14 [ 5.423694] input: HDA Intel PCH HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input15 [ 5.423729] input: HDA Intel PCH HDMI/DP,pcm=8 as /device/pci0000:000000:00:1f.3/sound/card0/input16