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i have installed ubuntu 14.04 LTS with windows 8 in different partitions. Sound is not working in ubuntu. I checked all answers for all similar questions but nothing helped. I have an asus n-550jk notebook.

In sound settings I can see "speakers" and "analog output".

In PulseAudio Volume Control I can see that the volume bar is changing but there is no sound.

In "Output devices" tab of "PAVUcontrol" there are DIgital Stereo HDMI (all unplugged) and Analog Stereo (ports Speakers and Analog Output). The volume bar for analog stereo is also working.

The output for "lspci | grep -i 'audio'" is:

00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06)

00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05)

The output for "aplay -l" is:

**** List of PLAYBACK Hardware Devices ****

card 0: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]

Subdevices: 0/1

Subdevice #0: subdevice #0

card 0: HDMI [HDA Intel HDMI], device 7: HDMI 1 [HDMI 1]

Subdevices: 1/1

Subdevice #0: subdevice #0

card 1: PCH [HDA Intel PCH], device 0: ALC668 Analog [ALC668 Analog]

Subdevices: 0/1

Subdevice #0: subdevice #0

I have alsa and pulseaudio installed.

Please help! Thanks in advance!

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Since it seems to me that you have a dualboot setup this thread might have an answer to your problem.

Right here: No sound from laptop speakers in Ubuntu 14.04 after booting into Windows 8.1

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