Sound card on my laptop just vanished yesterday. It was working correctly till date

upload=true&script=true&cardinfo=
!!################################
!!ALSA Information Script v 0.4.64
!!################################

!!Script ran on: Fri Aug 19 14:11:30 UTC 2016

!!Linux Distribution
!!------------------

Ubuntu 16.04.1 LTS \n \l DISTRIB_ID=Ubuntu DISTRIB_DESCRIPTION="Ubuntu 16.04.1 LTS" NAME="Ubuntu" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 16.04.1 LTS" HOME_URL="http://www.ubuntu.com/" SUPPORT_URL="http://help.ubuntu.com/" BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/" UBUNTU_CODENAME=xenial

!!DMI Information
!!---------------

Manufacturer: ASUSTeK COMPUTER INC.
Product Name: X555LA
Product Version: 1.0
Firmware Version: X555LA.308

!!Kernel Information
!!------------------

Kernel release: 4.4.0-34-generic
Operating System: GNU/Linux
Architecture: x86_64
Processor: x86_64
SMP Enabled: Yes

!!ALSA Version
!!------------

Driver version: k4.4.0-34-generic
Library version: 1.1.0
Utilities version: 1.1.0

!!Loaded ALSA modules
!!-------------------

snd_hda_intel

!!Sound Servers on this system
!!----------------------------

Pulseaudio:
      Installed - Yes (/usr/bin/pulseaudio)
      Running - Yes

!!Soundcards recognised by ALSA
!!-----------------------------

 0 [HDMI ]: HDA-Intel - HDA Intel HDMI
                      HDA Intel HDMI at 0xf7e18000 irq 47

!!PCI Soundcards installed in the system
!!--------------------------------------

00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)

!!Advanced information - PCI Vendor/Device/Subsystem ID's
!!-------------------------------------------------------

00:03.0 0403: 8086:0a0c (rev 0b)
 Subsystem: 1043:16cd

!!Modprobe options (Sound related)
!!--------------------------------

snd_pcsp: index=-2
snd_usb_audio: index=-2
snd_atiixp_modem: index=-2
snd_intel8x0m: index=-2
snd_via82xx_modem: index=-2
snd_atiixp_modem: index=-2
snd_intel8x0m: index=-2
snd_via82xx_modem: index=-2
snd_usb_audio: index=-2
snd_usb_caiaq: index=-2
snd_usb_ua101: index=-2
snd_usb_us122l: index=-2
snd_usb_usx2y: index=-2
snd_cmipci: mpu_port=0x330 fm_port=0x388
snd_pcsp: index=-2
snd_usb_audio: index=-2

!!Loaded sound module options
!!---------------------------

!!Module: snd_hda_intel
 align_buffer_size : -1
 bdl_pos_adj : 32,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
 beep_mode : N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N
 enable : Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y
 enable_msi : -1
 id : (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null)
 index : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
 jackpoll_ms : 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
 model : (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null)
 patch : (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null)
 position_fix : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
 power_save : 0
 power_save_controller : Y
 probe_mask : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
 probe_only : 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
 single_cmd : N
 snoop : -1

!!HDA-Intel Codec information
!!---------------------------
--startcollapse--

Codec: Intel Haswell HDMI
Address: 0
AFG Function Id: 0x1 (unsol 0)
Vendor Id: 0x80862807
Subsystem Id: 0x80860101
Revision Id: 0x100000
No Modem Function Group found
Default PCM:
    rates [0x0]:
    bits [0x0]:
    formats [0x0]:
Default Amp-In caps: N/A
Default Amp-Out caps: N/A
State of AFG node 0x01:
  Power states: D0 D3 CLKSTOP EPSS
  Power: setting=D0, actual=D0, Clock-stop-OK
GPIO: io=0, o=0, i=0, unsolicited=0, wake=0
Node 0x02 [Audio Output] wcaps 0x6611: 8-Channels Digital
  Converter: stream=0, channel=0
  Digital: Enabled KAE
  Digital category: 0x0
  IEC Coding Type: 0x0
  PCM:
    rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
    bits [0x1e]: 16 20 24 32
    formats [0x5]: PCM AC3
  Power states: D0 D3 EPSS
  Power: setting=D0, actual=D0
Node 0x03 [Audio Output] wcaps 0x6611: 8-Channels Digital
  Converter: stream=0, channel=0
  Digital: Enabled KAE
  Digital category: 0x0
  IEC Coding Type: 0x0
  PCM:
    rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
    bits [0x1e]: 16 20 24 32
    formats [0x5]: PCM AC3
  Power states: D0 D3 EPSS
  Power: setting=D0, actual=D0
Node 0x04 [Audio Output] wcaps 0x6611: 8-Channels Digital
  Converter: stream=0, channel=0
  Digital: Enabled KAE
  Digital category: 0x0
  IEC Coding Type: 0x0
  PCM:
    rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
    bits [0x1e]: 16 20 24 32
    formats [0x5]: PCM AC3
  Power states: D0 D3 EPSS
  Power: setting=D0, actual=D0
Node 0x05 [Pin Complex] wcaps 0x40778d: 8-Channels Digital Amp-Out CP
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals: [0x00 0x00]
  Pincap 0x0b000094: OUT Detect HBR HDMI DP
  Pin Default 0x58560010: [N/A] Digital Out at Int HDMI
    Conn = Digital, Color = Unknown
    DefAssociation = 0x1, Sequence = 0x0
  Pin-ctls: 0x00:
  Unsolicited: tag=00, enabled=0
  Power states: D0 D3 EPSS
  Power: setting=D0, actual=D0
  Devices: 0
  Connection: 0
Node 0x06 [Pin Complex] wcaps 0x40778d: 8-Channels Digital Amp-Out CP
  Control: name="IEC958 Playback Con Mask", index=0, device=0
  Control: name="IEC958 Playback Pro Mask", index=0, device=0
  Control: name="IEC958 Playback Default", index=0, device=0
  Control: name="IEC958 Playback Switch", index=0, device=0
  Control: name="ELD", index=0, device=3
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals: [0x00 0x00]
  Pincap 0x0b000094: OUT Detect HBR HDMI DP
  Pin Default 0x18560020: [Jack] Digital Out at Int HDMI
    Conn = Digital, Color = Unknown
    DefAssociation = 0x2, Sequence = 0x0
  Pin-ctls: 0x00:
  Unsolicited: tag=01, enabled=1
  Power states: D0 D3 EPSS
  Power: setting=D0, actual=D0
  Devices: 0
  Connection: 0
  In-driver Connection: 3
     0x02 0x03 0x04
Node 0x07 [Pin Complex] wcaps 0x40778d: 8-Channels Digital Amp-Out CP
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals: [0x00 0x00]
  Pincap 0x0b000094: OUT Detect HBR HDMI DP
  Pin Default 0x58560030: [N/A] Digital Out at Int HDMI
    Conn = Digital, Color = Unknown
    DefAssociation = 0x3, Sequence = 0x0
  Pin-ctls: 0x00:
  Unsolicited: tag=00, enabled=0
  Power states: D0 D3 EPSS
  Power: setting=D0, actual=D0
  Devices: 0
  Connection: 0
Node 0x08 [Vendor Defined Widget] wcaps 0xf00000: Mono
--endcollapse--

!!ALSA Device nodes
!!-----------------

crw-rw----+ 1 root audio 116, 2 Aug 19 19:37 /dev/snd/controlC0
crw-rw----+ 1 root audio 116, 4 Aug 19 19:37 /dev/snd/hwC0D0
crw-rw----+ 1 root audio 116, 3 Aug 19 19:38 /dev/snd/pcmC0D3p
crw-rw----+ 1 root audio 116, 1 Aug 19 19:37 /dev/snd/seq
crw-rw----+ 1 root audio 116, 33 Aug 19 19:37 /dev/snd/timer

/dev/snd/by-path:
total 0
drwxr-xr-x 2 root root 60 Aug 19 19:37 .
drwxr-xr-x 3 root root 160 Aug 19 19:37 ..
lrwxrwxrwx 1 root root 12 Aug 19 19:37 pci-0000:00:03.0 -> ../controlC0

!!Aplay/Arecord output
!!--------------------

APLAY

**** List of PLAYBACK Hardware Devices ****
card 0: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

ARECORD

**** List of CAPTURE Hardware Devices ****

!!Amixer output
!!-------------

!!-------Mixer controls for card 0 [HDMI]

Card hw:0 'HDMI'/'HDA Intel HDMI at 0xf7e18000 irq 47'
  Mixer name : 'Intel Haswell HDMI'
  Components : 'HDA:80862807,80860101,00100000'
  Controls : 7
  Simple ctrls : 1
Simple mixer control 'IEC958',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]

!!Alsactl output
!!--------------

--startcollapse--
state.HDMI {
 control.1 {
  iface CARD
  name 'HDMI/DP,pcm=3 Jack'
  value false
  comment {
   access read
   type BOOLEAN
   count 1
  }
 }
 control.2 {
  iface MIXER
  name 'IEC958 Playback Con Mask'
  value '0fff000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
  comment {
   access read
   type IEC958
   count 1
  }
 }
 control.3 {
  iface MIXER
  name 'IEC958 Playback Pro Mask'
  value '0f00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
  comment {
   access read
   type IEC958
   count 1
  }
 }
 control.4 {
  iface MIXER
  name 'IEC958 Playback Default'
  value '0400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
  comment {
   access 'read write'
   type IEC958
   count 1
  }
 }
 control.5 {
  iface MIXER
  name 'IEC958 Playback Switch'
  value true
  comment {
   access 'read write'
   type BOOLEAN
   count 1
  }
 }
 control.6 {
  iface PCM
  device 3
  name ELD
  value ''
  comment {
   access 'read volatile'
   type BYTES
   count 0
  }
 }
 control.7 {
  iface PCM
  device 3
  name 'Playback Channel Map'
  value.0 0
  value.1 0
  value.2 0
  value.3 0
  value.4 0
  value.5 0
  value.6 0
  value.7 0
  comment {
   access 'read write'
   type INTEGER
   count 8
   range '0 - 36'
  }
 }
}
--endcollapse--

!!All Loaded Modules
!!------------------

Module
bnep
pci_stub
vboxpci
vboxnetadp
vboxnetflt
vboxdrv
binfmt_misc
nls_iso8859_1
rtsx_usb_ms
memstick
uvcvideo
videobuf2_vmalloc
videobuf2_memops
videobuf2_v4l2
btusb
videobuf2_core
v4l2_common
btrtl
btbcm
videodev
btintel
bluetooth
media
joydev
intel_rapl
x86_pkg_temp_thermal
intel_powerclamp
coretemp
kvm_intel
kvm
irqbypass
snd_hda_codec_hdmi
snd_soc_rt5640
snd_soc_rl6231
snd_soc_core
asus_nb_wmi
snd_hda_intel
asus_wmi
sparse_keymap
crct10dif_pclmul
snd_hda_codec
snd_compress
snd_hda_core
crc32_pclmul
ac97_bus
snd_hwdep
snd_pcm_dmaengine
aesni_intel
snd_pcm
wl
aes_x86_64
snd_seq_midi
lrw
snd_seq_midi_event
gf128mul
snd_rawmidi
snd_seq
glue_helper
ablk_helper
cryptd
snd_seq_device
snd_timer
cfg80211
input_leds
serio_raw
snd
mei_me
dw_dmac
elan_i2c
mei
soundcore
lpc_ich
dw_dmac_core
snd_soc_sst_acpi
shpchp
int3402_thermal
i2c_designware_platform
8250_dw
i2c_designware_core
processor_thermal_device
int340x_thermal_zone
spi_pxa2xx_platform
mac_hid
int3400_thermal
intel_soc_dts_iosf
acpi_thermal_rel
parport_pc
ppdev
lp
parport
autofs4
rtsx_usb_sdmmc
rtsx_usb
hid_generic
usbhid
i915
psmouse
i2c_algo_bit
drm_kms_helper
r8169
syscopyarea
mii
sysfillrect
sysimgblt
fb_sys_fops
ahci
drm
libahci
wmi
video
i2c_hid
hid
sdhci_acpi
sdhci
fjes

!!Sysfs Files
!!-----------

/sys/class/sound/hwC0D0/init_pin_configs:
0x05 0x58560010
0x06 0x18560020
0x07 0x58560030

/sys/class/sound/hwC0D0/driver_pin_configs:

/sys/class/sound/hwC0D0/user_pin_configs:

/sys/class/sound/hwC0D0/init_verbs:

/sys/class/sound/hwC0D0/hints:

!!ALSA/HDA dmesg
!!--------------

[ 12.923078] asus_wmi: ASUS WMI generic driver loaded
[ 12.942539] snd_hda_intel 0000:00:03.0: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[ 12.978561] asus_wmi: Initialization: 0x1
--
[ 13.013080] usb 2-6: USB disconnect, device number 4
[ 13.213175] input: HDA Intel HDMI HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:03.0/sound/card0/input16
[ 13.863260] intel_rapl: Found RAPL domain package