I have a laptop (dell inspiron) installed with Linux mint. The sound work perfectly until a power failure happened this morning and there was a black screen with bunch of errors on it forcing me to shutdown the system by pressing and holding the power button. After rebooted, my sound settings shows only dummy output. I tried to update my kernel but it doesn't work.I tried every commands below, but none of them show an output:lspci -nnk | grep -i -A7 audiolsmod | grep snddmesg | grep -iC 3 audiodmesg | grep -iC 3 sndinxi -Axx I manage to execute the comand, See update at the bottom.I logged in to windows (I have two OS). Windows can't detect my soundcard, it shows red cross sign on the speaker icon.I opened BIOS, it said Audio controller (none). Does it mean that the power failure destroyed my audio hardware?I also tried the BIOS diagnostic tools. It said 6 tones are being played through audio file system'. But i hear nothing.After BIOS diagnostic process was done, I rebooted, and managed to capture some message during the startupNow my linux detect nothing, even the dummy output is disappearUPDATE:I tried the previous commands once again and managed to get some outputs.lspci -nnk | grep -i -A7 audio 00:1f.3 Audio device [0403]: Intel Corporation Device [8086:9d71] (rev 21)    Subsystem: Dell Device [1028:0781]    Kernel driver in use: snd_hda_intel    Kernel modules: snd_hda_intel00:1f.4 SMBus [0c05]: Intel Corporation Sunrise Point-LP SMBus [8086:9d23] (rev 21)    Subsystem: Dell Sunrise Point-LP SMBus [1028:0781]    Kernel modules: i2c_i80101:00.0 3D controller [0302]: NVIDIA Corporation GM108M [GeForce 940MX] [10de:134d] (rev a2)lsmod | grep sndsnd_hda_codec_hdmi     53248  1snd_hda_intel          40960  4snd_hda_codec         135168  2 snd_hda_codec_hdmi,snd_hda_intelsnd_hda_core           73728  3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intelsnd_hwdep              16384  1 snd_hda_codecsnd_pcm               106496  5 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_coresnd_seq_midi           16384  0snd_seq_midi_event     16384  1 snd_seq_midisnd_rawmidi            32768  1 snd_seq_midisnd_seq                69632  2 snd_seq_midi_event,snd_seq_midisnd_seq_device         16384  3 snd_seq,snd_rawmidi,snd_seq_midisnd_timer              32768  2 snd_pcm,snd_seqsnd                    81920  16 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_devicesoundcore              16384  1 snddmesg | grep -iC 3 audio[   10.690215] Bluetooth: HCI UART protocol BCM registered[   10.690216] Bluetooth: HCI UART protocol QCA registered[   10.809012] snd_hda_intel 0000:00:1f.3: enabling device (0000 -> 0002)[   10.809157] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915_bpo])[   10.897076] AVX2 version of gcm_enc/dec engaged.[   10.897079] AES CTR mode by8 optimization enabled[   10.986853] dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)dmesg | grep -iC 3 snd [   10.690215] Bluetooth: HCI UART protocol BCM registered[   10.690216] Bluetooth: HCI UART protocol QCA registered[   10.809012] snd_hda_intel 0000:00:1f.3: enabling device (0000 -> 0002)[   10.809157] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915_bpo])[   10.897076] AVX2 version of gcm_enc/dec engaged.[   10.897079] AES CTR mode by8 optimization enabled[   10.986853] dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)  audio_troubleshoot dmesg | grep -iC 3 snd                        [   10.690199] Bluetooth: HCI UART protocol Intel registered[   10.690215] Bluetooth: HCI UART protocol BCM registered[   10.690216] Bluetooth: HCI UART protocol QCA registered[   10.809012] snd_hda_intel 0000:00:1f.3: enabling device (0000 -> 0002)[   10.809157] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915_bpo])[   10.897076] AVX2 version of gcm_enc/dec engaged.[   10.897079] AES CTR mode by8 optimization enabled[   10.986853] dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)--[   12.968748] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)[   12.968749] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)[   13.829019] Adding 8284156k swap on /dev/sda6.  Priority:-1 extents:1 across:8284156k FS[   13.916496] snd_hda_intel 0000:00:1f.3: azx_get_response timeout, switching to polling mode: last cmd=0x000f0000[   14.405703] nvidia: module license 'NVIDIA' taints kernel.[   14.405706] Disabling lock debugging due to kernel taint[   14.409475] nvidia: module verification failed: signature and/or required key missing - tainting kernel--[   14.580760] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms  375.39  Tue Jan 31 19:41:48 PST 2017[   14.651405] [drm] [nvidia-drm] [GPU ID 0x00000100] Loading driver[   14.814731] nvidia-uvm: Loaded the UVM driver in 8 mode, major device number 242[   14.920432] snd_hda_intel 0000:00:1f.3: No response from codec, disabling MSI: last cmd=0x000f0000[   15.181572] ACPI Warning: \_SB_.PCI0.RP01.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)[   15.181624] ACPI Warning: \_SB_.PCI0.RP01.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)[   15.181654] ACPI Warning: \_SB_.PCI0.RP01.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)--[   15.181749] ACPI Warning: \_SB_.PCI0.RP01.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)[   15.181777] ACPI Warning: \_SB_.PCI0.RP01.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)[   15.199779] ACPI Warning: \_SB_.PCI0.RP01.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)[   15.928533] snd_hda_intel 0000:00:1f.3: Codec #0 probe error; disabling it...[   15.976209] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input16[   15.976261] input: HDA Intel PCH HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input17[   15.976305] input: HDA Intel PCH HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input18inxi -AxxAudio:     Card Intel Device 9d71 driver: snd_hda_intel bus-ID: 00:1f.3 chip-ID: 8086:9d71           Sound: Advanced Linux Sound Architecture v: k4.4.0-72-genericBut, still no sound. Any advice would be really appreciated.
No sound after power failure on linux mint
linux;audio