Bug 914946

+++ This bug was initially created as a clone of Bug #603929 +++

Created attachment 423983 [details]
alsa-info.sh output file

Description of problem:
When you plug either headphones or external speakers into either of the two audio-out ports on a new Dell Studio 1747 model laptop the internal stereo speakers mute as they should, but there is no sound coming out of the connected headphones\speakers. I've tried every combination of output profile and output connector possible under the gnome volume control applet and have had no luck in getting audio to output through my external speakers.

How reproducible:
Very reproducible, happens every time.

Steps to Reproduce:
1. Start playing an audio file or watch a flash video.
2. Connect headphones or speakers into either of the audio-out ports on the side of the laptop.
3. The laptop's stereo speakers mute, but no sound comes out of the attached listening device.
  
Actual results:
You don't hear any sound.


Expected results:
You do hear sound.

Additional info: I've attached the output from alsa-info.sh. Here is some information about my audio devices and alsa\pulseaudio packages.

[Rob@Dell ~]$ rpm -qa | grep alsa
report-plugin-localsave-0.14-1.fc13.x86_64
alsa-lib-1.0.23-1.fc13.x86_64
alsa-firmware-1.0.23-1.fc13.noarch
alsa-plugins-pulseaudio-1.0.22-1.fc13.x86_64
alsa-tools-firmware-1.0.23-1.fc13.x86_64
alsa-utils-1.0.22-1.fc13.x86_64
report-config-localsave-0.14-1.fc13.x86_64

[Rob@Dell ~]$ rpm -qa | grep pulse
pulseaudio-libs-0.9.21-6.fc13.x86_64
xmms-pulse-0.9.4-8.fc12.x86_64
pulseaudio-module-lirc-0.9.21-6.fc13.x86_64
pulseaudio-0.9.21-6.fc13.x86_64
pulseaudio-module-x11-0.9.21-6.fc13.x86_64
pulseaudio-libs-glib2-0.9.21-6.fc13.x86_64
alsa-plugins-pulseaudio-1.0.22-1.fc13.x86_64
pulseaudio-module-bluetooth-0.9.21-6.fc13.x86_64
pulseaudio-module-zeroconf-0.9.21-6.fc13.x86_64
pulseaudio-module-gconf-0.9.21-6.fc13.x86_64
pulseaudio-gdm-hooks-0.9.21-6.fc13.x86_64
pulseaudio-esound-compat-0.9.21-6.fc13.x86_64
pulseaudio-utils-0.9.21-6.fc13.x86_64

[Rob@Dell ~]$ lspci | grep -i  audio
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)
02:00.1 Audio device: ATI Technologies Inc RV710/730 <- HDMI audio

[Rob@Dell ~]$ alsactl init
Unknown hardware: "HDA-Intel" "IDT 92HD73C1X5" "HDA:111d7675,102802eb,00100103" "0x1028" "0x02eb"
Hardware is initialized using a guess method

[Rob@Dell ~]$ cat /proc/asound/card0/codec#* | grep Codec
Codec: IDT 92HD73C1X5

--- Additional comment from Rob Wills on 2010-06-20 20:42:38 EDT ---

Wanted to report that I found a work around for this bug and now have full functionality for my headphone and microphone\audio-out jacks on the laptop. Adding the following line to the file: /etc/modprobe.d/dist-alsa.conf does the trick.

options snd-hda-intel model=dell-m6

Information was obtained from http://www.kernel.org/doc/Documentation/sound/alsa/HD-Audio-Models.txt. Search the txt file for the codec used by your audio device (output of cat /proc/asound/card0/codec#* | grep Codec), mine was 92HD73C1X5. Search for a model that matches your coded code and substitute the model=xxx with one of the sub models until you have one that works. You'll need to log out before changes come into effect.

Not sure what this is really a bug against, as alsa is working fine with the hardware now that it knows which "model" is present.

--- Additional comment from Bug Zapper on 2011-06-02 06:50:49 EDT ---


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--- Additional comment from Rob Wills on 2011-06-02 07:55:10 EDT ---

Updating the version information of the bug report since the issue still exists in F15. The above fix still solves the problem, but I feel it is something that could be corrected without end-user intervetntion or research.

--- Additional comment from Fedora End Of Life on 2013-01-16 17:03:39 EST ---

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--- Additional comment from Fedora End Of Life on 2013-02-13 19:43:23 EST ---

Fedora 16 changed to end-of-life (EOL) status on 2013-02-12. Fedora 16 is 
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