Comment 29 for bug 1414706

@David

For BeiJing site, the external mic works on new received Lenovo ThinkPad X240.
Upload the alsa-info log.
The sound with a little buzzing when dumping alsa-info.

more info:
Machine information:
Test image: Stock Ubuntu 14.04
BIOS Version: GIET60WW (2.10 )

Audio cards:
00:03.0 Audio device [0403]: Intel Corporation Device [8086:0a0c] (rev 09)
00:1b.0 Audio device [0403]: Intel Corporation Device [8086:9c20] (rev 04)
Codec: Realtek ALC292

Headset: philips shm7110

#uname -a
Linux u-ThinkPad-X240 3.13.0-46-generic #77-Ubuntu SMP Mon Mar 2 18:23:39 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

#dpkg -l |grep -oem
ii oem-audio-hda-daily-dkms 0.201503011031~ubuntu14.04.1 all HDA driver in DKMS format.

#cat /sys/module/snd_hda_codec/parameters/dump_coef
1