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I upgraded from Ubuntu 19.10 to 20.04 and have not found a solution to these desktop bugs and don't know how to report them.

See images below, icons for all system applications are missing, including minimize, maximize, and close icons for all applications, period. The top right menu at first was invisible but now only shows the airplane mode icon and clicking the background right below it activates it, as if the menu had the wrong dimensions. Full screen applications can't be closed with the close window icon because you'll be clicking the menu instead.

I have reinstalled gnome, gnome-shell, gnome-session, and other packages to no avail.

Running this command gsettings get org.gnome.desktop.interface icon-theme gives me:

GLib-GIO-Message: 12:10:31.048: Using the 'memory' GSettings backend.  Your settings will not be saved or shared with other applications.

(process:5770): GLib-GIO-WARNING **: 12:10:31.048: unknown schema extension 'd'

(process:5770): GLib-GIO-WARNING **: 12:10:31.048: unknown schema extension 'd'
'Adwaita'

icons missing icons missing

and

invisible menu invisible menu

  • I don't know what that is, so, default? I never customized anything. I will look into switching and see what happens. – r0bin_dood May 18 at 16:05
  • Backup your data and reinstall ubuntu – ldias May 18 at 16:44
  • I'll leave that as a measure of last resort. I'd like to know what's causing this and how to fix it. – r0bin_dood May 18 at 18:16
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Your icon theme is Adwaita, which seems to be corrupted. Reinstall the adwaita-icon-theme package by running the following command in Terminal

sudo apt-get install --reinstall adwaita-icon-theme

and then reboot your system.

Also you may use GNOME Tweaks to change the icon theme to something different from Adwaita.

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