笔记本电脑重启冻结后,ubuntu 18.04 LTS中没有声音

i am usiNg ubuntu 18.04 LTS sound was working fine till yesterday my laptop got hanged and i restarted it from there i have no sound in ubuntu, i have windows 10 insattled as well on my laptop sound is working fine there so there is no hardware issues. I have tried a bunch of solutions given on the internet but no luck here is what i have done so far

tried all the solutions given here

inxi -SMA

System:    Host: my-Inspiron-7773 Kernel: 4.15.0-99-generic x86_64 bits: 64 Desktop: Gnome 3.28.4
           Distro: Ubuntu 18.04.4 LTS
Machine:   Device: laptop System: Dell product: Inspiron 7773 serial: N/A
           Mobo: Dell model: 0R58C3 v: A00 serial: N/A UEFI: Dell v: 1.9.0 date: 06/12/2018
Audio:     Card Intel Sunrise Point-LP HD Audio driver: snd_hda_intel Sound: ALSA v: k4.15.0-99-generic

here is my audio setting enter image description here

i have tried alsamixer speakers are on 100% tested both with default and HDA Intel PCH here is my settings enter image description here then

sudo alsa force-reload

Unloading ALSA sound driver modules: snd-soc-skl snd-soc-skl-ipc snd-hda-ext-core snd-hda-codec-hdmi snd-soc-sst-dsp snd-soc-sst-ipc snd-soc-acpi snd-soc-core snd-compress snd-pcm-dmaengine snd-hda-codec-realtek snd-hda-codec-generic snd-hda-intel snd-hda-codec snd-hda-core snd-hwdep snd-pcm snd-seq-midi snd-seq-midi-event snd-rawmidi snd-seq snd-seq-device snd-timer (failed: modules still loaded: snd-hda-codec-hdmi snd-hda-codec-realtek snd-hda-codec-generic snd-hda-intel snd-hda-codec snd-hda-core snd-hwdep snd-pcm snd-timer).
Loading ALSA sound driver modules: snd-soc-skl snd-soc-skl-ipc snd-hda-ext-core snd-hda-codec-hdmi snd-soc-sst-dsp snd-soc-sst-ipc snd-soc-acpi snd-soc-core snd-compress snd-pcm-dmaengine snd-hda-codec-realtek snd-hda-codec-generic snd-hda-intel snd-hda-codec snd-hda-core snd-hwdep snd-pcm snd-seq-midi snd-seq-midi-event snd-rawmidi snd-seq snd-seq-device snd-timer.

并同时运行这些命令

sudo apt-get remove --purge alsa-base
sudo apt-get remove --purge pulseaudio
sudo apt-get install alsa-base
sudo apt-get install pulseaudio
sudo alsa force-reload

rebooted the system also updated the kernel using this link

uname -r

gives 4.15.0-99-generic

sudo apt-get update
sudo apt-get dist-upgrade

之后,内核版本保持不变(4.15.0-99-generic )

the command pulseaudio --start gives

 N: [pulseaudio] main.c: User-configured server at {d31e5be658484174a49d9c408bcecf46}unix:/run/user/1000/pulse/native, which appears to be local. Probing deeper.

sudo apt-get install pavucontrol
pavucontrol

并且其配置设置为

analog stereo duplex

并切换到

Analog stereo output

enter image description here all the above solutions and the one given in the first link i mentioned did not worked for me took help from these links NOTHING WORKED :( No audio on Ubuntu 18.04 No sound in Ubuntu 18.04 Ubuntu 18.04 sound suddenly stopped working

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