Red Hat Bugzilla – Bug 291911
Headphone automute not working on Acer TravelMate 3260
Last modified: 2008-05-26 04:00:39 EDT
Description of problem:
I have an Acer TravelMmate 3260 laptop. It has a sound card that uses
snd_intel_hda. The problem is, unlike windows, sound from speakers is not
automatically muted when I insert the headphone in the jack. This feature is
perfectly working on Arch Linux, but not on Ubuntu Feisty. I think this implies
that the driver for my sound card has been updated, but not synced in the fedora
repos. I am writing this from the F8Test2 7.91 live cd for gnome. In ubuntu as
well as in fedora by default when I start alsamixer I get channels like
Surround, Center, LFE, Front etc .. In arch where headphone automute is working,
I get just Headphone, PCM and Front (of course the Mic etc are always there).
From the live cd, I unloaded snd_hda_intel, and reloaded it by passing the
argument "modprobe snd_hda_intel model=auto". After that when I run alsamixer I
get the same channels as Arch Linux, yet headphone automute is not working.
Please find all the info for the laptop I have attached here -
If I still need to attach any more info, or repaste the info from within fedora
live cd, please tell me, I'll be glad to do so. It'll be great to see sound in
fedora working out of box without any config on my laptop. Thanks !
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Play any sound file
2. Insert the headphone in the jack
The speaker and headphones both play sound.
Only the headphone must play sound, and not the speakers. (as in windows and
Please find all the logs and files attached here --
Created attachment 196311 [details]
lspci -nv output
lspci -nv output from the fedora 8 test 2 gnome live cd.
Created attachment 196321 [details]
amixer output after model=auto
Created attachment 196331 [details]
Contents of /proc/asound/card0/codec* after model=auto
Created attachment 196341 [details]
dmesg output after model=auto
All the above info has been posted from the Fedora 8 test 2 live cd. I will post
more info (the above files before model=auto and also amixer output from arch
linux where this feature works). Please bear with me :) Thanks !
Created attachment 196361 [details]
amixer on default boot of fc8t2 gnome live cd
Created attachment 196371 [details]
Contents of /proc/asound/card0/codec* on default boot
Created attachment 196381 [details]
amixer on Arch Linux where headphone automute works perfectly
Created attachment 196391 [details]
Contents of /proc/asound/card0/codec* on Arch Linux
Ahh, now I think I have provided maximum possible information required for this
bug :) For the record, I'm using Arch Linux -current, not some frozen stable
branch. Arch uses kernel 22.214.171.124 .. The patches applied to Arch's kernel can be
found here -
If some more information is needed, please tell me. I think this bug has been
fixed upstream, but is pending a sync in the fedora repo.. Thanks once again !
Ok the URL to arch repo has changed, it's now -
OK after some more diagnosis it seems that it works on Arch Linux because it
uses ALSA patches which are newer than either kernel 2.6.22 or 2.6.23-rcX. The
newer patches which arch applies to kernel 2.6.22 (which fixes this bug) are -
I am attaching those two patches individually here too, for convenience.
Created attachment 204491 [details]
Patch no. 1 against kernel 126.96.36.199 which fixes this bug.
Created attachment 204501 [details]
Patch no. 2 against kernel 188.8.131.52 which fixes this bug.
Ok, doing some digging upstream, I'm positively sure that this commit in alsa
repo fixes the bug. Though I've yet to try it myself, there is no other commit
upto now which seems to have fixed the bug.
Commit - http://hg.alsa-project.org/alsa-kernel/rev/2c9a8e76669e
The complete revision history of patch_realtek.c can be seen at
Ok, this has GOT to be the patch that fixes it -
and it's dependency seems to be
I'll try and build a kernel which incorporates the patches, and report back :-)
OMG THAT FIXES IT ! Applying the above 2 patches to kernel 2.6.23-rc7-git5 fixes
the bug without anything else required ! No other dependencies. Can we please
have the bug fixed in fedora rawhide for fedora 8 release now ? Thanks :-)
Which patches were applied? c9f96ebed522 from comment #16 does not apply, with
or without the other patch from that comment applied.
The 2c9a8e76669e modifies some non-existent documentation file. Just removing
that much part from the head of the patch allows the patch to apply cleanly. The
c9f96ebed522 has some rejects, but when merged in manually by me, the patch
applied cleanly. The problem occurs because of other patches in between these 2
and the upstream kernel version of the same file :(
As Fedora 8 uses alsa 1.0.15, the bug is resolved ! Thank you very much !!
I've a HP Pavilion DV6605us and Fedora 8 installed in it. I'm getting sound
from both Speakers and Headphone. Does the above mentioned patch will work for
HP laptop too? If so, please tell me how to apply this patch?
The above mentioned patch was taken from the development tree. It is no longer
relevant, as that patch has already been merged upstream.
For your laptop, you should check the ALSA database for the corresponding sound
card - http://alsa-project.org/main/index.php/Matrix:Main