Re: [alsa-devel] No sound on Thinkpad T440s in Docking Station

At Wed, 30 Apr 2014 10:56:48 +0200, Joschi Brauchle wrote:

Dear all,

using openSUSE 13.1 on an Thinkpad T440s, I am not getting sound once the laptop is docked to its docking station.

I suspect an additional SND_PCI_QUIRK is needed for this model. "pactl list" returns

---

alsa.mixer_name = "Realtek ALC292" alsa.components = "HDA:10ec0292,17aa220c,00100001"

---

for the analog audio output sink in docked state.

Hence I assume a new line *similar* to this

SND_PCI_QUIRK(0x17aa, 0x220c, "Thinkpad T440s", ALC269_FIXUP_LENOVO_DOCK),

is needed? What about the ALC292 instead of 269 Realtek chip...?

It's a compatible chip, so the codec name doesn't matter. You can try it with model=lenovo-dock option with the recent kernels. For Haswell, it's safer to pass twice (model=lenovo-dock,lenovo-dock).

Let us know if this works for you.

Takashi