Bug#767239: [linux] Regression: T420 docking station headphone plug not working automatically
Package: linux
Severity: normal
X-Debbugs-CC: tiwai@suse.de, joschi.brauchle@tum.de
The docking station headphone plug stopped working after upgrading to 3.16. The problem matches the description for T440 which can be found here: https://bugzilla.redhat.com/show_bug.cgi?id=1101386
But in my case it stopped working after the patch https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/patch_realtek.c?id=1c37c22332a2d2c1b4ab32177a4f847c7fe06e38 was applied
expected:
* headphones/speakers get plugged in
* sound on the speaker is reduced and the headphones output is activated (pulseaudio magic?)
what happens:
* headphones/speakers get plugged in
* no mixer changes
* I cannot hear anything anymore
Interestingly, it works fine when using the headphone plug on the laptop instead of the docking station. But in my setup I cannot use the laptop plug because the speakers are all the time connected to the docking station.
--- System information. ---
Architecture: amd64
Kernel: Linux 3.16-3-amd64
Debian Release: jessie/sid
500 unstable http.debian.net
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