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I am newbie in Ubuntu. I bought machine with OS Linux. It was Ubuntu 15.xx. My machine AVITA Celeron N4020 model NE14A2 SSD 128 4GiB RAM. When I purchased it there was a password for Superuser that I couldn't be retrieve. So I decided to change OS to Ubuntu 22.04. It works! But there is no sound. I try to fix it by any hint in forum but it didn't work. Until I got message like shown below:

00:0e.0 Multimedia audio controller: Intel Corporation Celeron/Pentium Silver Processor High Definition Audio (rev 06)
    DeviceName: Onboard - Sound
    Subsystem: Device 1c6c:122a
    Flags: bus master, fast devsel, latency 0, IRQ 131, IOMMU group 2
    Memory at a1210000 (64-bit, non-prefetchable) [size=16K]
    Memory at a1000000 (64-bit, non-prefetchable) [size=1M]
    Capabilities: <access denied>
    Kernel driver in use: sof-audio-pci-intel-apl
    Kernel modules: snd_hda_intel, snd_soc_skl, snd_sof_pci_intel_apl

00:0f.0 Communication controller: Intel Corporation Celeron/Pentium Silver Processor Trusted Execution Engine Interface (rev 06) DeviceName: Onboard - Other Subsystem: Intel Corporation Celeron/Pentium Silver Processor Trusted Execution Engine Interface Flags: bus master, fast devsel, latency 0, IRQ 128, IOMMU group 3 Memory at a1239000 (64-bit, non-prefetchable) [size=4K] Capabilities: <access denied> Kernel driver in use: mei_me Kernel modules: mei_me

Please help what should I do with those problem. Thank you.

Pilot6
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