Regression: switching between sound from notebook and dockingstation on Latitude D830 broke in 2.6.24-7

Bug #190178 reported by Gabriel Ambuehl on 2008-02-08
Affects Status Importance Assigned to Milestone
alsa-driver (Ubuntu)
Declined for Intrepid by Brian Murray
linux (Ubuntu)
Andy Whitcroft
Declined for Intrepid by Brian Murray

Bug Description

After upgrading to
Linux buznote 2.6.24-7-generic #1 SMP Thu Feb 7 01:29:58 UTC 2008 i686 GNU/Linux
from -5 today, switching between sound from the docking station and from the laptop directly does no longer work as it used to on -5. I used to have a PCM device, a "Front" device and a binary device called IEC958 for sound output. The latter would decide if the docking station would output sound. Now I have TWO "Front" devices which apparently don't do anything and the IEC958 is still there (toggling sound from the docking station) but sound from the laptop does no longer turn on.

Linux 2.6.24-8-generic #1 SMP Thu Feb 14 20:40:45 UTC 2008 i686 GNU/Linux

also suffers of this bug.

I assume this happened after the update to alsa-1.0.16 final ?

2.6.24-10 is also affected, same symptoms.

Changed in alsa-driver:
status: New → Confirmed

The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel. There are one of two ways you should be able to test:

1) If you are comfortable installing packages on your own, the linux-image-2.6.27-* package is currently available for you to install and test.


2) The upcoming Alpha5 for Intrepid Ibex 8.10 will contain this newer 2.6.27 Ubuntu kernel. Alpha5 is set to be released Thursday Sept 4. Please watch for Alpha5 to be announced. You should then be able to test via a LiveCD.

Please let us know immediately if this newer 2.6.27 kernel resolves the bug reported here or if the issue remains. More importantly, please open a new bug report for each new bug/regression introduced by the 2.6.27 kernel and tag the bug report with 'linux-2.6.27'. Also, please specifically note if the issue does or does not appear in the 2.6.26 kernel. Thanks again, we really appreicate your help and feedback.

Daniel T Chen (crimsun) wrote :

Please execute the script referenced from and attach the URL here.

Changed in alsa-driver:
status: Confirmed → Won't Fix
Changed in linux:
status: New → Incomplete
sportrider (sportrider) wrote :

I can confirm a problem also with the Dell Latitude E6500 and docking station.

When docked, sound comes from both the laptop speakers and the speakers plugged into the docking station.

Here is the URL from the also-info script.

Changed in linux:
importance: Undecided → Medium
status: Incomplete → Triaged
Andy Whitcroft (apw) wrote :

This bug was reported a while ago but there hasn't been any recent comments or updates. Is this still an issue with the latest Inprepid -proposed kernel, or with the pre-release of Jaunty 9.04? Refer to . Please let us know.

Changed in linux (Ubuntu):
status: Triaged → Incomplete
assignee: nobody → Andy Whitcroft (apw)
kernel-janitor (kernel-janitor) wrote :

This bug report was marked as Incomplete and has not had any updated comments for quite some time. As a result this bug is being closed. Please reopen if this is still an issue in the current Ubuntu release . Also, please be sure to provide any requested information that may have been missing. To reopen the bug, click on the current status under the Status column and change the status back to "New". Thanks.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

tags: added: kj-expired
Changed in linux (Ubuntu):
status: Incomplete → Invalid
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