Audio and Speakers
Internal High-Definition 5.1 Performance Audio with Dolby Home Theater v4
Software (Standard)
2.1 Speaker configuration with Subwoofer
Audio Powered by Klipsch®
7.1 Digital Audio out using HDMI out connection
(2x) Audio Out 1/8" Ports (One compatible with inline mic headset)
(1x) Line In Microphone 1/8" Port (retaskable for 5.1 analog audio output)
how many internal speakers ?
only stereo speakers at node 0x14
Node 0x14 [Pin Complex] wcaps 0x40058f: Stereo Amp-In Amp-Out
Control: name="Speaker Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Control: name="Speaker Phantom Jack", index=0, device=0
Amp-In caps: N/A
Amp-In vals: [0x00 0x00]
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x00 0x00]
Pincap 0x0001003c: IN OUT HP EAPD Detect
EAPD 0x2: EAPD
Pin Default 0x90170110: [Fixed] Speaker at Int N/A
Conn = Analog, Color = Unknown
DefAssociation = 0x1, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x40: OUT
Unsolicited: tag=00, enabled=0
Power states: D0 D1 D2 D3 EPSS
Power: setting=D0, actual=D0
Connection: 3
0x0c 0x0d 0x0e*
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1299322
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https://bugs.launchpad.net/bugs/1302090
Title:
Speaker sound output is mono until a headphone jack is plugged
Status in “alsa-driver” package in Ubuntu:
New
Bug description:
Here's the required release and package information:
Description: Ubuntu Trusty Tahr (development branch)
Release: 14.04
Package: linux-image-extra-3.13.0-19-generic
Version: 3.13.0-19.40
When playing audio through speakers on my Alienware 14 2014, the sound
output is in mono until I plug a headphone in any of the two available
headphone jacks (obviously, the auto-mute option must be disabled).
When I do so, the sound starts to play in stereo.
I would love the sound output to be stereo by default and not be
forced to plug anything to achieve that.
Attached is the alsa-info.sh output for my machine.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1302090/+subscriptions
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