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I was watching a movie when all of a sudden the sound stopped working. I can hear the stuff with headphone but not without headphone. Its beyond understanding for me as to why should sound stop all of a sudden and work only with a headphone. Any help? Ubuntu 12.04 I have tried the obvious things like checking if it is muted and restarting the system over 5 times already.

These are the results of the various tests I ran :

pacmd list-sinks

1 sink(s) available. * index: 0 name: driver: flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY state: RUNNING suspend cause: priority: 9959 volume: 0: 24% 1: 24% 0: -37.19 dB 1: -37.19 dB balance 0.00 base volume: 100% 0.00 dB volume steps: 65537 muted: no current latency: 15.60 ms max request: 2 KiB max rewind: 64 KiB monitor source: 0 sample spec: s16le 2ch 44100Hz channel map: front-left,front-right Stereo used by: 1 linked by: 1 configured latency: 16.00 ms; range is 16.00 .. 371.52 ms card: 0 module: 4 properties: alsa.resolution_bits = "16" device.api = "alsa" device.class = "sound" alsa.class = "generic" alsa.subclass = "generic-mix" alsa.name = "STAC92xx Analog" alsa.id = "STAC92xx Analog" alsa.subdevice = "0" alsa.subdevice_name = "subdevice #0" alsa.device = "0" alsa.card = "0" alsa.card_name = "HDA Intel" alsa.long_card_name = "HDA Intel at 0xfbd00000 irq 49" alsa.driver_name = "snd_hda_intel" device.bus_path = "pci-0000:00:1b.0" sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0" device.bus = "pci" device.vendor.id = "8086" device.vendor.name = "Intel Corporation" device.product.name = "5 Series/3400 Series Chipset High Definition Audio" device.form_factor = "internal" device.string = "front:0" device.buffering.buffer_size = "65536" device.buffering.fragment_size = "32768" device.access_mode = "mmap+timer" device.profile.name = "analog-stereo" device.profile.description = "Analog Stereo" device.description = "Built-in Audio Analog Stereo" alsa.mixer_name = "Intel IbexPeak HDMI" alsa.components = "HDA:111d7605,10280447,00100105 HDA:80862804,80860101,00100000" module-udev-detect.discovered = "1" device.icon_name = "audio-card-pci" ports: analog-output-speaker: Speakers (priority 10000, available: no) properties: analog-output-headphones: Headphones (priority 9000, available: yes) properties: active port:

pulseaudio

E: [pulseaudio] pid.c: Daemon already running. E: [pulseaudio] main.c: pa_pid_file_create() failed.

I created various accounts and its the same for all users.

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I have run several tests as mentioned here help.ubuntu.com/community/SoundTroubleshooting Cant get where I am wrong. –  Shagun Dec 9 '12 at 11:14
    
Try also with some (not all will apply to your issue) of the steps outlined here: askubuntu.com/a/224390/3940 and give us feedback. –  Takkat Dec 9 '12 at 11:53
    
Check independent HP setting in alsamixer. –  Alistair Buxton Dec 9 '12 at 11:55
    
Now sound is lost completely :( –  Shagun Dec 9 '12 at 15:15
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1 Answer

up vote 1 down vote accepted

It is actually a hardware issue. I am attaching the link that helped me to narrow down to the problem. http://en.community.dell.com/support-forums/laptop/f/3517/p/19352413/19772968.aspx#19772968

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