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Tasklist

FS#49607 - [linux] 4.5.x ThinkPad T460 + Lenovo ThinkPad Ultra Dock Audio Problem

Attached to Project: Arch Linux
Opened by Slawomir Grodzki (infoslaw) - Tuesday, 07 June 2016, 15:37 GMT
Last edited by Tobias Powalowski (tpowa) - Friday, 24 June 2016, 15:20 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To Tobias Powalowski (tpowa)
Thomas Bächler (brain0)
Architecture x86_64
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:
I'm unable to get sound from Lenovo ThinkPad Ultra Dock when plug in headphones or speakers to Stereo/Microphone Combo Audio Port.
On laptop everything works fine.

Additional info:
* package version(s)
* config and/or log files etc.

Linux 4.5.4-1-ARCH x86_64 with gui KDE

Steps to reproduce:

aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC293 Analog [ALC293 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0

checked alsamixer:

Master: 15
Headphone: MM
Speaker: 100<>100
PCM: 100<>100
Mic: 81<>81
Mic Boost: 0<>0
S/PDIF: MM
S/PDIF 1: 00
S/PDIF 2: 00
Auto
Auto-Mute: Enabled
Internal: 0<>0
Loopback: Enabled
This task depends upon

Closed by  Tobias Powalowski (tpowa)
Friday, 24 June 2016, 15:20 GMT
Reason for closing:  Fixed
Comment by Slawomir Grodzki (infoslaw) - Wednesday, 08 June 2016, 21:29 GMT
Maybe it will be helpfull... I found similar bug on Bugzilla and seems that Alsa doesn't discovering dock audio. More here: https://bugzilla.redhat.com/show_bug.cgi?id=1101386#c10
Comment by Tobias Powalowski (tpowa) - Friday, 24 June 2016, 09:47 GMT
Please try latest 4.6.x kernel and if it still persist try to get in contact with upstream.
Comment by Slawomir Grodzki (infoslaw) - Friday, 24 June 2016, 09:59 GMT
Currently I'm on last 4.6.2-1 kernel and unfortunately audio issue with Lenovo ThinkPad Ultra Dock and T460 still exist.
Comment by Slawomir Grodzki (infoslaw) - Friday, 24 June 2016, 10:00 GMT
OK I will report issue direct to bugzilla.kernel.org
Comment by Slawomir Grodzki (infoslaw) - Friday, 24 June 2016, 13:32 GMT
Issue resolved by input mode:

echo "options snd-hda-intel model=tpt460" > /etc/modprobe.d/alsadock.conf

more info on bugzilla kernel https://bugzilla.kernel.org/show_bug.cgi?id=120961

Thank you for all help.

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