Ubuntu 20.04: No sound

[Volker Wysk]

Am Dienstag, den 19.05.2020, 13:44 +0200 schrieb Liam Proven:
> On Tue, 19 May 2020 at 10:19, Volker Wysk <post at volker-wysk.de>
> wrote:
> > I've found the Sony support page for the Vaio VPCEB1Z1E, but there
> > isn't any firmware. There are some "update programs", but it's all
> > for
> > Windows. Searching on packages.ubuntu.com for "firmware sony" /
> > "firmware vaio" didn't work either.
> 
> https://www.sony.co.uk/electronics/support/vpc-series-vpceb1-series/vpceb1z1e/downloads/Z0000709
> 
> Version R0300Y8

So this would upgrade the BIOS. But it's for Windows only. What should
I do with this EP0000600184.exe ?  How would one flash a BIOS from
Linux anyway?

> > Sorry, I've searched for 15 minutes and couldn't find out, what the
> > Control Panel is.
> 
> What desktop are you using? GNOME? I do not have GNOME to hand -- I
> find GNOME 3 an unusable mess, personally -- but I think it's called
> Settings (in English).
 
I'm using Gnome 3. And yes, I think that's called "Settings"
("Einstellungen" in German).

> > There is a program called "Anwendungen und Aktualisierungen"
> > (applications and upgrades) which has a tab called "Zusätzliche
> > Treiber" (additional drivers), but it says "No additional drivers
> > are
> > available". At the bottom there is "Es werden keine prorietären
> > Treiber
> > verwendet" (No propriatary drivers are used.).
> 
> OK, so, in theory, none needed.
> 
> > The laptop has a blue "Fn" key, and you can change the volume with
> > a
> > keyboard combination. When pressed, "Dummy-Ausgabe" (dummy output)
> > is
> > shown. Is this a sign that some firmware is missing?
> 
> Can you pick a different output?

No. In Settings->Sound->Output->Output device, there is only this
"Dummy output".

What makes me wonder is, why did this work without any problems, when
the system was Kubuntu 18.04?

Bye
Volker