Red Hat Bugzilla – Bug 468647
Soundcard input and output sources on Dell Inspiron 1525 not working on Fedora 10 Beta Snapshot 3.
Last modified: 2009-12-18 01:39:28 EST
Description of problem:
On Dell Inspiron 1525 notebook, where the soundcard is detected as below, the front panel input and output sources are not working correctly. When I insert a headphone on output source 2 no sound is presented, but on output source 1 all works as expected. The external mic (headphone) does not work at all, neither using ALSA nor PULSEAUDIO, but the internal (onboard) mic its working well.
description: Audio device
product: 82801H (ICH8 Family) HD Audio Controller
vendor: Intel Corporation
physical id: 1b
bus info: pci@0000:00:1b.0
width: 64 bits
capabilities: bus_master cap_list
configuration: driver=HDA Intel latency=0 module=snd_hda_intel
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)
Version-Release number of selected component (if applicable):
Fedora 10 Beta Snapshot 3
Insert a headphone on the 2nd jack of the front panel, no sound will be presented at all.
Insert an external mic on the front panel input source, no sound will be captured, neither using ALSA nor PULSEAUDIO, but the internal (onboard) mic works fine.
Steps to Reproduce:
1. Play some audio file.
2. Plug a headphone on the 2nd jack of the front panel output source.
3. No sound will be presented at all.
4. Insert an external mic on the front panel input source, no sound will be captured, neither using ALSA nor PULSEAUDIO, but the internal (onboard) mic works fine.
The 2nd jack of the front panel output source is MUTE.
The external mic (headphone) is not working at all, neither using ALSA nor PULSEAUDIO.
Play the same thing that is playing at the 1st jack of front panel output source, instead of beeing mute.
Capture sounds coming from the external mic (headphone).
These features was working fine on Fedora 9, but on Fedora 10 Beta Snapshot 3 is not working anymore.
The same problems are presented on Ubuntu 8.10 RC as well.
This bug appears to have been reported against 'rawhide' during the Fedora 10 development cycle.
Changing version to '10'.
More information and reason for this action is here:
After some research I found out how to overcome this problem.
After I create the file /etc/modprobe.d/alsa-base with the above line everything worked out.
options snd-hda-intel model=3stack
Maybe this information could help you guys.
Daniel, thanks for reporting the solution. This bug is filed against the kernel component, but I don't see which kernel version you were using? Do you know? And is this hack still needed for a more recent kernel version?
Hi Chris... I don't remember exactly which version I was using... but surely, this apply to more recent kernels as well... and the solution works in all these versions. This problem ocurrs even on Ubuntu 9.10.
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