> > Thank you for your reply, > > Please see below the output of alsa-info.sh before and after the headphone plugged in > > Before:<a href="http://www.alsa-project.org/db/?f=a316eebf7b150b5897838be37bce4e8c9d95eaae"> http://www.alsa-project.org/db/?f=a316eebf7b150b5897838be37bce4e8c9d95eaae</a> > After: <a href="http://www.alsa-project.org/db/?f=0f163003e9005972db5f97f21a45be67816e3801"> http://www.alsa-project.org/db/?f=0f163003e9005972db5f97f21a45be67816e3801</a> > > I have 6 Jacks at the rear panel and two at the top (one output one input) > I am afraid I do not know how to switch channel mode to retask. > > Also, the computer is of a certain age, and the issue has started several month ago but I never really looked into it, so I am not sure that change in power management will be relevant has it seems quite recent. > grey jack mean no headphone playback volume control and independent headphone <a href="https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/patch_via.c?id=4abdbd1c2c1832e7270e546307ffb3e56b286db2">https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/patch_via.c?id=4abdbd1c2c1832e7270e546307ffb3e56b286db2</a> The recent fix for the independent HP reduced the availability of the side surround output, because there are only 4 DACs for 7.1 and a HP outputs. Adjust the badness tables for VIA so that 7.1 outputs are activated for the cost of missing independent HP. Once when we implement the dynamic DAC switching to multiple outputs, this conflicts will be eased in future... This mean some feature are lost <a href="https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/patch_via.c?id=2525050518496dfd6905abfa8d6d34288eed36d7">https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/patch_via.c?id=2525050518496dfd6905abfa8d6d34288eed36d7</a> If you have selected ac97 front audio panel instead of hda front audio panel in BIOS setup, both front hp and front mic disable jack detection Misc = NO_PRESENCE You have to provide pulseaudio verbose log since there is only headphone phantom jack and no headphone playback volume and <a href="http://fedoraproject.org/wiki/How_to_debug_PulseAudio_problems">http://fedoraproject.org/wiki/How_to_debug_PulseAudio_problems</a> Node 0x1d [Pin Complex] wcaps 0x40058d: Stereo Amp-Out Control: name="Headphone Playback Switch", index=0, device=0 ControlAmp: chs=3, dir=Out, idx=0, ofs=0 Control: name="Front Headphone Phantom Jack", index=0, device=0 Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1 Amp-Out vals: [0x00 0x00] Pincap 0x0000233c: IN OUT HP Detect Vref caps: HIZ 50 100 Pin Default 0x0221411f: [Jack] HP Out at Ext Front Conn = 1/8, Color = Green DefAssociation = 0x1, Sequence = 0xf Misc = NO_PRESENCE Pin-ctls: 0xc0: OUT HP VREF_HIZ Unsolicited: tag=00, enabled=0 Power states: D0 D1 D2 D3 Power: setting=D0, actual=D0 Connection: 2 0x16* 0x25 Node 0x1e [Pin Complex] wcaps 0x40058d: Stereo Amp-Out Control: name="Front Mic Boost Volume", index=0, device=0 ControlAmp: chs=3, dir=In, idx=0, ofs=0 Control: name="Front Mic Phantom Jack", index=0, device=0 Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1 Amp-Out vals: [0x80 0x80] Pincap 0x0000233c: IN OUT HP Detect Vref caps: HIZ 50 100 Pin Default 0x02a19138: [Jack] Mic at Ext Front Conn = 1/8, Color = Pink DefAssociation = 0x3, Sequence = 0x8 Misc = NO_PRESENCE Pin-ctls: 0x21: IN VREF_50 Unsolicited: tag=00, enabled=0 Power states: D0 D1 D2 D3 Power: setting=D0, actual=D0 Connection: 2 0x16* 0x25 <a href="http://cgit.freedesktop.org/pulseaudio/pulseaudio/tree/src/modules/alsa/mixer/paths/analog-output-headphones.conf">http://cgit.freedesktop.org/pulseaudio/pulseaudio/tree/src/modules/alsa/mixer/paths/analog-output-headphones.conf</a> >> > >> > First some details: >> > I have an VT1708S sound card with a rear panel and and top/front panel My Speakers are plugged on the rear panel corresponding to the "surround" channel on alsamixer. While I always have my headset plugged in on the top panel. >> > >> > This is not user specific but system wide. >> > >> > Now the issue; >> > The Surround channel is always muted when PulseAudio starts, doesn't mater if the headset are plugged in or not. I have used alsamixer to unmute and run "sudo alsa-store" but it hasn't worked >> > I also tried to stop PulseAudio Daemon that restore the mixer's level but it hasn't work. >> > This issue has started months ago, but never got around to sort it before. >> > >> >> You have to post output of alsa-info.sh before and after you plugged the headphone >> >> How many audio jacks in rear panel, you need to switch channel mode to retask the input jacks as output if you want suuround40 or surround51 >> >> The recent change in power management or hardware fault in your front audio panel jack detection may affect rear panel >> >><a href="https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/patch_via.c?id=688b12cc3ca8a5155b95ce8d01e0e43006813b27"> https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/patch_via.c?id=688b12cc3ca8a5155b95ce8d01e0e43006813b27</a> >>