Alt+Super+S in Ubuntu 22.04 blocks the sound after restart

[milton]

Hi,

I did a fresh install of Ubuntu 22.04 with Orca screen reader on a Dell 
5480. The install was successful and I set in Startup-application the 
system-ready-sound. After updating I press Alt+Super+S to let Orca 
starts automatically. After restart I expect to hear the 
system-ready-sound and Orca. But there is no sound at all.

I press again Alt=Super+S to deactivate Orca and restart the laptop.

Now I hear the system-ready-sound again. I press Alt+F2 and type 'orca' 
to start Orca.

I wonder if this has to do with Ubuntu or with the Dell 5480?

Milton