As in title - is it possible to use Compiz with GNOME Flashback on Ubuntu 20.04 ? If yes, how ? It would be nice to have some features like window overview screen with miniatures of all open windows, something that Compiz provided in the older version of Ubuntu.
After I installed the Radiance theme in Ubuntu 20.04 and set the system to use it, there are no horizontal menu separators in the menus. I noticed it in Firefox, because the separators I created between bookmarks didn't show up in the bookmarks menu (although they are correctly visible in Show All Bookmarks window), but the same is happening for other menus, eg. menus dropping from top GNOME panel (I use GNOME Flashback).
When switching to some of the default system themes, like Yaru or Adwaita, the separators are visible. What should I change in theme's CSS files to bring the separators back?
This is very annoying, and is affecting the top and bottom panels. I had the problem with Eoan too, but I noticed it only appeared if I have a tty session opened as the same user when starting Flashback. Now that I've upgraded to Focal it can't get rid of it, even if Flashback is the first session opened as that user.
I tried explicitly setting the background and text color (Alt-Right click on the panel), but I didn't manage to get back to what is supposed to be the default anyway. I simply would like it to behave like it's configured to. Any advice ?
EDIT : To make things clearer, I use the default theme. I tried with the Intel and the Nvidia GPUs (I have an Optimus laptop), same problem. And here's a screenshot :
Notice the white border of Windows too. It wasn't like that before...
2ND EDIT : It turns out my "problem" is not really one, the theme has changed in 20.04. So the problem would rather be "How to set the theme of Gnome Flashback to the previous default one ?"
I've installed Gnome Flashback and can select it on the log in screen:
Unfortunately, every time I restart I'm automatically logged into the original "Ubuntu" (Gnome 3) environment again. The solutions in these related questions don't work anymore:
how to set default session in Ubuntu 14.04 LTS?
How do I change the default session for when using auto-logins?
Specifically, setting user-session to gnome-flashback-metacity in /usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf has no effect.
How do I fix this?
How to fix broken nautilus-dropbox icon in ubuntu 18.04 GNOME-Flashback in top Panel?
See screenshot below:
