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I am usually using Ubuntu 20.04 with Gnome DE. Since my laptop is slow, I wanted so see how it will work with XFCE. In the login screen, I switched to XFCE and it was a terrible experience with very slow responses. Now, I can not get back to Gnome, I get no option to chose DE, it is booting into XFCE directly and the screen is stuck. How do I change it back to Gnome using recovery mode? I am using HP laptop.

hans
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  • At the DM (*display manager that performs greeter functions*) you select which desktop you'll login in with when you select/enter your username & password. When you installed `xubuntu-desktop` (*you weren't specific as to how you installed it so I've made assumption*) you were asked which DM you want to be used (Xubuntu/Xfce defaults to a different DM to GNOME thus the question), and it's how you answered this question that dictates how you're asked to select desktop. If you have *autologin* enabled, you need to logout to get asked. – guiverc Feb 11 '22 at 09:29
  • I did not install any thing, just choose XFCE from the DM menu. Now it goes directly into XFCE. I do not have the choice, It does not give this option to select DE. Therefore, I asked about recovery mode. Nothing works in GUI. – hans Feb 11 '22 at 11:35
  • You said you "*switched to XFCE*" which I don't know what what you meant.. This install I'm using is a Ubuntu install initially; on which I added `xubuntu-desktop` (ie. XFCE), `lubuntu-desktop` (was LXDE but now is LXQt), `ubuntu-mate-desktop`..... ie. I added them so I could switch from one desktop to another just by logout & logging back in switching desktops (at the DM; which is `sddm` for me; having `gdm3` for Ubuntu/GNOME, and `lightdm` for ...).. What do you mean by "*switched to XFCE*" (if you re-installed; your GNOME is likely gone) – guiverc Feb 11 '22 at 11:41
  • "switched to XFCE" means choosing XFCE in the login screen. – hans Feb 13 '22 at 09:15

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I removed xubutnu and xfce installation using the root terminal in the recovery mode. :See link here

hans
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  • You've answered your own question; though I don't see how this does.. either way removing the `xubuntu-desktop` will still leave parts behind (eg. the `plymouth` logo, which will say Xubuntu until you change that back to whichever you want to use). – guiverc Feb 11 '22 at 11:57
  • After I purged xubuntu and XFCE, I got the login screen back and the XFCE option was not available anymore. That all I needed. – hans Feb 13 '22 at 09:14