After upgrade to 20.04, from 19.10, cannot read user interface in ubuntustudio-session and xfce-session

I've seen this before after running updates and before rebooting. Have you already rebooted to see if things clear up?

Hi Sean, yes.. I did...
I did also reinstall all fonts... but nothing...
Again, if I select any Noto family font in the font selector for Appearance
Settings, the interface gets completely garbled.
*Update* the screen doens't look garbled anymore if I select Noto font
(which is still garbled on selector).
I've regularly updated and this morning, while trying to take pictures for
you, I've noticed that selecting the font doesn't corrupt all the system as
yesterday.
I send you my pictures the same... Take into account that the when
selecting Noto fonts, the example string is garbled and that apparently
nothing really changes on my screen.
  Fabrizio.

On Mon, Apr 13, 2020 at 11:35 PM Sean Davis <email address hidden>
wrote:

> I've seen this before after running updates and before rebooting. Have
> you already rebooted to see if things clear up?
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1872513
>
> Title:
> After upgrade to 20.04, from 19.10, cannot read user interface in
> ubuntustudio-session and xfce-session
>
> Status in xfce4-settings package in Ubuntu:
> New
>
> Bug description:
> Looks like font Noto is corrupted somehow.
> Using another 19.10 installation as a reference, I recovered by blind
> choosing a font using xfce4-settings-manager, going to font and choose any
> font.
> Then I checked many different fonts but Noto, all variants, gives no
> glyphs, only squares with ASCII codes.
>
> I'm available for further info.
>
> Best regards,
> Fabrizio
>
> ProblemType: Bug
> DistroRelease: Ubuntu 20.04
> Package: xfce4-settings 4.14.3-0ubuntu1
> ProcVersionSignature: Ubuntu 5.4.0-21.25-lowlatency 5.4.27
> Uname: Linux 5.4.0-21-lowlatency x86_64
> NonfreeKernelModules: nvidia_modeset nvidia
> ApportVersion: 2.20.11-0ubuntu26
> Architecture: amd64
> CasperMD5CheckResult: skip
> CurrentDesktop: XFCE
> Date: Mon Apr 13 19:31:23 2020
> InstallationDate: Installed on 2018-03-21 (754 days ago)
> InstallationMedia: Ubuntu-Studio 16.04.1 LTS "Xenial Xerus" - Release
> amd64 (20160719)
> SourcePackage: xfce4-settings
> UpgradeStatus: Upgraded to focal on 2020-04-12 (0 days ago)
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/xfce4-settings/+bug/1872513/+subscriptions
>