I also confirm this bug.
$ uname -a
Linux laptop 3.13.0-29-generic #53-Ubuntu SMP Wed Jun 4 21:00:20 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux
$ aplay -l
**** Список PLAYBACK устройств ****
карта 0: HDMI [HDA Intel HDMI], устройство 3: HDMI 0 [HDMI 0]
Подустройства: 1/1
Подустройство №0: subdevice #0
карта 0: HDMI [HDA Intel HDMI], устройство 7: HDMI 1 [HDMI 1]
Подустройства: 1/1
Подустройство №0: subdevice #0
карта 0: HDMI [HDA Intel HDMI], устройство 8: HDMI 2 [HDMI 2]
Подустройства: 1/1
Подустройство №0: subdevice #0
карта 1: PCH [HDA Intel PCH], устройство 0: ALC233 Analog [ALC233 Analog]
Подустройства: 1/1
Подустройство №0: subdevice #0
$ aplay -L
default
Playback/recording through the PulseAudio sound server
null
Discard all samples (playback) or generate zero samples (capture)
pulse
PulseAudio Sound Server
hdmi:CARD=HDMI,DEV=0
HDA Intel HDMI, HDMI 0
HDMI Audio Output
hdmi:CARD=HDMI,DEV=1
HDA Intel HDMI, HDMI 1
HDMI Audio Output
hdmi:CARD=HDMI,DEV=2
HDA Intel HDMI, HDMI 2
HDMI Audio Output
dmix:CARD=HDMI,DEV=3
HDA Intel HDMI, HDMI 0
Direct sample mixing device
dmix:CARD=HDMI,DEV=7
HDA Intel HDMI, HDMI 1
Direct sample mixing device
dmix:CARD=HDMI,DEV=8
HDA Intel HDMI, HDMI 2
Direct sample mixing device
dsnoop:CARD=HDMI,DEV=3
HDA Intel HDMI, HDMI 0
Direct sample snooping device
dsnoop:CARD=HDMI,DEV=7
HDA Intel HDMI, HDMI 1
Direct sample snooping device
dsnoop:CARD=HDMI,DEV=8
HDA Intel HDMI, HDMI 2
Direct sample snooping device
hw:CARD=HDMI,DEV=3
HDA Intel HDMI, HDMI 0
Direct hardware device without any conversions
hw:CARD=HDMI,DEV=7
HDA Intel HDMI, HDMI 1
Direct hardware device without any conversions
hw:CARD=HDMI,DEV=8
HDA Intel HDMI, HDMI 2
Direct hardware device without any conversions
plughw:CARD=HDMI,DEV=3
HDA Intel HDMI, HDMI 0
Hardware device with all software conversions
plughw:CARD=HDMI,DEV=7
HDA Intel HDMI, HDMI 1
Hardware device with all software conversions
plughw:CARD=HDMI,DEV=8
HDA Intel HDMI, HDMI 2
Hardware device with all software conversions
sysdefault:CARD=PCH
HDA Intel PCH, ALC233 Analog
Default Audio Device
front:CARD=PCH,DEV=0
HDA Intel PCH, ALC233 Analog
Front speakers
surround40:CARD=PCH,DEV=0
HDA Intel PCH, ALC233 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
HDA Intel PCH, ALC233 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
HDA Intel PCH, ALC233 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
HDA Intel PCH, ALC233 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
HDA Intel PCH, ALC233 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
dmix:CARD=PCH,DEV=0
HDA Intel PCH, ALC233 Analog
Direct sample mixing device
dsnoop:CARD=PCH,DEV=0
HDA Intel PCH, ALC233 Analog
Direct sample snooping device
hw:CARD=PCH,DEV=0
HDA Intel PCH, ALC233 Analog
Direct hardware device without any conversions
plughw:CARD=PCH,DEV=0
HDA Intel PCH, ALC233 Analog
Hardware device with all software conversions
$ lspci -k | grep -A2 -i audio
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 09)
Subsystem: ASUSTeK Computer Inc. Device 131d
Kernel driver in use: snd_hda_intel
--
00:1b.0 Audio device: Intel Corporation Lynx Point-LP HD Audio Controller (rev
04)
Subsystem: ASUSTeK Computer Inc. Device 11af
Kernel driver in use: snd_hda_intel
http://www.alsa-
project.org/db/?f=70fd0de0d58f680c5a74ff1fbcf6dc46de5e5dc8
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https://bugs.launchpad.net/bugs/1325884
Title:
[Asus X550LD] Microphone not working Ubuntu 14.04
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