<html> <head> <meta content="text/html; charset=utf-8" http-equiv="Content-Type"> </head> <body bgcolor="#FFFFFF" text="#000000"> Thank you for your reply, Please see below the output of alsa-info.sh before and after the headphone plugged in Before: <a class="moz-txt-link-freetext" href="http://www.alsa-project.org/db/?f=a316eebf7b150b5897838be37bce4e8c9d95eaae">http://www.alsa-project.org/db/?f=a316eebf7b150b5897838be37bce4e8c9d95eaae</a> After: <a class="moz-txt-link-freetext" 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. Looking forward for your reply, <div class="moz-cite-prefix">On 30/03/15 06:23, Raymond Yau wrote: </div> <blockquote cite="mid:CAN8ccib7Bqry0SK5zyq8s-dsazyQdjRN1yo7vRqAZmaP8Y8cHA@mail.gmail.com" type="cite"> > > 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 moz-do-not-send="true" 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> <fieldset class="mimeAttachmentHeader"></fieldset> <pre wrap="">_______________________________________________ pulseaudio-discuss mailing list <a class="moz-txt-link-abbreviated" href="mailto:pulseaudio-discuss@lists.freedesktop.org">pulseaudio-discuss@lists.freedesktop.org</a> <a class="moz-txt-link-freetext" href="http://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss">http://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss</a> </pre> </blockquote> </body> </html>