No Sound with Dummy Output

Cushie

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I have installed Ubuntu 22.04 latest update on my new Huawei D15 Intel i5 Matebook
the new installation, boots fine and the latest updates installed including 'firmware-sof-signed'

Some of the kernel modules installed:-





However I can't get no response from Speakers or Microphome and the camera display has severe interference lines.
On Windows I left the Speakers, Mic and Bluetooth switched on.
I've not found any compehensible suggestions on the web yet.
Can anyone help or advise?





However I can't get any responce from Speakers or Microphome and the camera display has severe interference lines.
On Windows I left the Speakers, Mic and Bluetooth switched on.
I've not found any compehensible suggestions on the web yet.
Can anyone help or advise?
 
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