Fixes to bugs encounterd after moving to Gnome 3.12 on Xubuntu 14.04

I just moved to Gnome and noticed several bugs! First of all I didn't know how to go to sleep mode!
That was very easy, click on the right corner and hold ALT and the power off button will change to sleep. That's great! But now that I can go to sleep mode, the computer won't wake up!






It doesn't show up anything! Just a laminated dark screen and I have to power it off to be able to use the computer!
I looked up dozens of pages without finding a single clue, many people assumed it was a video driver issue or something. It wasn't the video driver!
The answer was right under my nose!
Coming to gnome I noticed that it still used the "ugly" login manager LightDM-GTK-Greeter. So I used the command to change the login manager to GDM, Gnome's default login manager, that's where the problem started!
As soon as I chose LightDM-GTK-Greeter and rebooted, I've been able to sleep and wake at will! No problem at all!
So that's the fix! Install LightDM-GTK-Greeter.
First of all add it to the repositories via this command:
Then install it via this command:
Finally: Use this command to make it the default login manager.
sudo dpkg-reconfigure lightdm
My problem wasn't "fixed" 100%. I was feeling bitter-sweet!
I fixed the sleep issue, and now the extensions remain after reboot too! But the login manager is hideous! Isn't there a way to make it pretty?
Why is it hideous you ask? It was a part of the XCFE interface and when I removed it, it lost the visual elements it had and went back to defaults. And that's not pretty at all!
Ubutu Tweak couldn't customize it, and the Tweak utility provided by Gnome had no options for it.
The question remained: How to customize LightDM-GTK-Greeter?
It's very simple actually! There is a package called: LightDM-GTK-Greeter-Settings. All you have to do is to install it. And use it to customize LightDM-GTK-Greeter to look better!
I began by adding it to the repositories via this command:
Then install it via this command:
sudo apt-get install lightdm-webkit-greeter
From the menu I ran it and it needs administrator rights so I had to enter my password to start it.
I had several options to choose from like theme and position and what tabs to be displayed. It looks so much better now and it gets the job done.
Not as pretty as GDM of course, but at least it works!
In addition to the sleep and wake bug fix, and the extensions staying enabled after reboot, the Gnome classic mode loads an interface rather than just a background with a mouse cursor, but it looks the same as Gnome. I'm yet to figure that out!

My fix to that was very simple, Installing Ubuntu Gnome 14.04.4 a fresh install.

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