Still applies on 4.9.0-2. Interesting thing: if I do a
rmmod -f snd_hda_codec_conexant modprobe snd_hda_codec_conexant while the sound does NOT work, I get [888251.375219] snd_hda_codec_conexant hdaudioC0D0: CX20753/4: BIOS auto-probing. [888251.375863] snd_hda_codec_conexant hdaudioC0D0: autoconfig for CX20753/4: line_outs=1 (0x1d/0x0/0x0/0x0/0x0) type:speaker [888251.375874] snd_hda_codec_conexant hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) [888251.375882] snd_hda_codec_conexant hdaudioC0D0: hp_outs=1 (0x16/0x0/0x0/0x0/0x0) [888251.375887] snd_hda_codec_conexant hdaudioC0D0: mono: mono_out=0x0 [888251.375892] snd_hda_codec_conexant hdaudioC0D0: inputs: [888251.375900] snd_hda_codec_conexant hdaudioC0D0: Internal Mic=0x1a [888251.375906] snd_hda_codec_conexant hdaudioC0D0: Mic=0x19 [888251.385961] input: HDA Intel PCH Mic as /devices/pci0000:00/0000:00:1f.3/sound/card0/input68 [888251.386459] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1f.3/sound/card0/input69 [888251.386766] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1f.3/sound/card0/input67 As seen on the speaker_outs=0 line, it seems that somehow the speaker is disabled? I'll try the same after a reboot (which "fixes" the sound) in a moment.
