When I login to gdm, I found that my desktop environment doesn’t work at all: no icons on the menu and toolbar. I also can’t open any apps, even Settings and Terminal.
I have re-installed GNOME and tried installing KDE: didn’t solve the issue.
I have tried searching this issue and found the same problem with Ubuntu desktop which have been solved by the command ‘dpkg --configure -a’
Fix Blue Screen , No icons , No folder opening in Linux ubuntu 20.04 LTS after login - YouTube
NOTE:
Before I met this issue, I tried installing .deb package of Cisco Packet Tracer using alien and this setup file by following the instructions I found on the internet.
packettracer-rpm-based/setup.sh at main · thiagoojack/packettracer-rpm-based · GitHub
I wonder if this issue happens because I touched xdg-desktop-menu, libdouble-conversion.so, gtk-update-icon-cache, mime.
Do you know how to solve this issue/recover my desktop to make it work again?