GNOME Display Manager (GDM) is a program which used to provide Ubuntu's graphical login screen until Ubuntu 11.10; since then it has been replaced by LightDM. You may still install it manually if you prefer, however.

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How do I change the GDM Login Window top icon?

After installing xubuntu-desktop on Ubuntu 10.10, The GDM window icon changed to a blue mouse, How to I return GDM to the default Ubuntu theme/icon. I have tried the following which effectively ...
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GDM and Lightdm don't work after update; KDM is ok

After updating Ubuntu (apt-get update, apt-get upgrade and apt-get dist-upgrade) last Tuesday, GDM stopped working, and the startup hangs on the Ubuntu logo. Lightdm also don't work (same happens). If ...
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lightdm doesn't start

Today when I started Ubuntu, it didn't start lightdm, showing a black screen. I changed to console Ctrl-Alt-F1 and tried to start lightdm manually sudo start lightdm It threw me to the graphic ...
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Login returns to login screen [duplicate]

Possible Duplicate: Ubuntu - resolution issue causing login screen loop So, after much googling and searching this very site, I've seem to have encountered another problem. During the ...
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Desktop installation never gets to the graphical stage with a GMA500

I am trying to install ubuntu desktop on a hardware-set, which on a similar one, I have successfully installed ubuntu server with no issues. When booting from Ubuntu Desktop CD it ends up at the ...
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Ubuntu freezes when gdm starts [closed]

I have Ubuntu 10.10 (upgraded from 10.04) I was browsing in Firefox yesterday, then the PC suddenly did a reset Once it restarted, everything went normal until gdm begun showing. Then everything ...
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Why running clamtk on 12.04 with kernel-update of today crashes the system?

I am performing clamtk - virusscan as usual (at a friends computer with 12.04 - updated today): sudo clamtk Then normal scanning of all files. When reaching certain file, it crashes with logout to ...
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Login crash loop

After about the second/third batch of updates on a fresh install of Ubuntu 12.04, I end up getting stuck in an infinite login loop: I enter my password, screen goes black and shows me the end of the ...
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Gnome failure after update

I originally asked this question over the Ubuntu forums, but I'm not really sure where the best place to get help is. Anyway... I've had Ubuntu 11.04 installed on my desktop since it's release. Up ...
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Fresh install of 11.04x64 - display(compiz) constantly failing [closed]

I have a brand new HP G62x, 11.04 64bit installed fresh. I have only been using Gnome Classic rather than Unity but I don't think that effects this issue. I have been searching here and ubuntuforums ...
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Resolution set too low on startup, solutions do not work

After installing natty, my resolution is being set to 1024x768 instead of the proper 1368x768. The Monitors program doesn't allow me to set my resolution higher. I looked around for a solution, and I ...
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ubuntu 12.04 login returns to login [duplicate]

This is not a resolution issue, I am on a netbook, that has been working fine for years, I have no nvidia graphics, guest user works just fine with the existing graphics and adding a new user has ...