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42

Both LightDM and GDM (GNOME Display Manager) are display managers. They both provide graphical login capabilities (the GUI with the list of the system's users) as well as remote logins using the XDMCP protocol. Ubuntu is supposed to officially replace GDM in favor of the lighter and more easily customizable LightDM You can have both of them installed (or ...


31

Replacing Desktop By An Application Define User Defined Session First we will have to define a User Defined Session that handles the special case when no desktop should be loaded. We will define this session by creating a custom.desktop file in /usr/share/xsessions/ with a content similar to this: [Desktop Entry] Name=Custom Comment=Custom Session to run ...


30

GDM was switched out for LightDM, so: sudo stop lightdm Or in your service parlance: sudo service lightdm stop For future reference, all these upstart services (that can be run with initctl's service command and shortcuts) are .conf files in /etc/init/


25

Edit the file /etc/gdm/gdm.schema find the section that currently looks like this: <schema> <key>greeter/Exclude</key> <signature>s</signature> <default>bin,root,daemon,adm,lp,sync,shutdown,halt,mail,news,uucp,operator,nobody,nobody4,noaccess,postgres,pvm,rpm,nfsnobody,pcap</default> </schema> ...


18

The login screen doesn't simply sort by name. In fact, in lucid, the default login screen sorts first by usage frequency, and by display name as a fallback. So your mother will show up first after a few times.


17

In Ubuntu 10.4 you should refer to Upstart http://upstart.ubuntu.com/ which handles starting of tasks and services during boot, stopping them during shutdown and supervising them while the system is running. Upstart handle start of gdm, so you should edit /etc/init/gdm.conf # sudo vi /etc/init/gdm.conf Default runlevel in ubuntu 10.4 is 2 so you must ...


14

I have the same issue seems like gnome-settings-daemon is not loading monitors.xml at startup my work around is to run this command pkill -9 -f gnome-settings-daemon as a "Startup Application" i have documented this in my ubuntu 14.04 update and problems post not sure if there is a better solution


13

Use this command in the terminal: sudo cp /usr/share/applications/gnome-appearance-properties.desktop /usr/share/gdm/autostart/LoginWindow Logout, and you will be prompted with the Appearance window. change the theme as you change it for the desktop, and login back, and type this command: sudo rm ...


12

The normal way : Go to System -> Administration -> Language Support On the Text Tab, choose your prefered language to display numbers, dates, ... The advanced way for your Desktop Applet : Press Alt+F2 Type: gconf-editor & Hit return Navigate to “Apps > Panel > Applets > Clock_Screen0 > Prefs” Double-click on the ‘Format’ value. Change it to ...


12

GDM You can't make the lock screen look like the login screen. However, you can use a theme for the lock screen. There are quite a few available at gnome-look.org. Here's an example.


12

You seem to have configured gdm correctly, but you did not actually stop lightdm. Logging out doesn't stop it. After doing sudo dpkg-reconfigure gdm, you need to stop lightdm sudo service lightdm stop and start gdm sudo service gdm start Hope this helps.


12

Switching from LightDM to the "older" GDM is very easy, and need not even involve opening a terminal. Note: If you need/want to do this from a terminal (e.g. recovery console), please scroll below the screenshots for a how-to. Also, the "new" GDM is not covered here because it is not officially available for 12.04 and the unofficial packages do ...


11

Hacky but you can modify the user's id so they don't show in the list: sudo usermod -u 999 <username> This works because users with id under 1000 are considered to be "system" users (i.e. not humans). The only other way I know is to hide the list completely: sudo -u gdm gconftool-2 --type bool --set /apps/gdm/simple-greeter/disable_user_list ...


10

Install x11vnc on the remote We assume a working ssh setup has already been done. user@remote: sudo apt-get install x11vnc Remote login with GDM We assume that a successful vnc setup has already been done. user@remote:~$ sudo x11vnc <options> x11vnc will use our predefinded VNC settings and passwords. For further options see the manpage and ...


10

Do: sudo dpkg-divert --rename --add /etc/init/gdm.conf Which prints: Adding `local diversion of /etc/init/gdm.conf to /etc/init/gdm.conf.distrib' This will allow you to disable GDM while preventing package upgrades from putting the file back in place and allowing the GDM package to upgrade the configuration file. In the case of 11.x and above lightdm ...


10

Found it. /etc/gdm/PostLogin/Default for login script /etc/gdm/PostSession/Default for logout script I figured from Florian's suggestion that there should be something for gdm that did it :)


9

The reason that doesn't work is because Ubuntu 11.10 has switched from GDM to LightDM. Try this command instead: sudo service lightdm stop


9

Tista and three other dev's have done just this (see link below). Tista has created a testing PPA to install GDM 3.2 - this is the version of the login manager which you can theme via CSS. Warning - this is a testing PPA At the time of writing this, there are only packages for Precise (12.04) I originally tested this on a 11.10 virtual machine when a ...


9

Recent versions of Ubuntu are using upstart instead of SysV init. Rename /etc/init/gdm.conf to /etc/init/gdm.disabled. For Kubuntu, rename /etc/init/kdm.conf to /etc/init/kdm.disabled.


9

The default in Ubuntu is LightDM, but if it works I see no reason to lose sleep over it. I am not aware of any difference between the two from a hardware performance aspect.


9

this may fix the problem. If you are stuck with no mouse movement on your laptop (touchpad) then press the key combinations Alt+F2 and type in gksudo modprobe -r psmouse Type in the password, press enter, and then press Alt+F2 again for entering the following gksudo modprobe psmouse Thats it. Your mouse pointer will start working again. If you like ...


9

They handle pretty much everything (that isn't displaying graphics on hardware) for X. Logins, greeters, pass X the configuration for external connections, session choice. You don't need a heavy DM but I would argue that GDM isn't that heavy. LightDM certainly isn't. But if you're really trying to hypermile things, take a look at NoDM. It's very raw and ...


9

This depends on what you want to do with the login screen. You can configure some basic options in the Login Screen Settings app (System/Administration/Login Screen) - whether a user should be automatically logged in, the default session etc. However to change the login screen more graphically Ubuntu Tweak can be used to change the background, logo etc.


9

Elaborating on Gilles's comment to the accepted answer, here's what I believe is the current "best practices" (Gnome-safe) way to do this. This change will also be reflected in the Gnome "Indicator Applet Session". This method is that one suggested in the docs at the GDM website, and though both the site and Gilles show the addition of "nobody" to the ...


9

Go to the Ubuntu Software Center and use the search box in the upper right corner. Search for ubuntu-netbook and remove the packages ubuntu-netbook and ubuntu-netbook-default-settings.


8

Simply execute sudo dpkg-reconfigure gdm and select gdm instead of kdm.


8

What txwikinger said, but then to make it automatically run startx when you login, edit ~/.bash_profile -- that file is only executed on login shells, not in normal terminal emulators that you open on your desktop. EDIT: ~/.profile if you don't use bash


8

Assuming GDM is still installed: sudo dpkg-reconfigure gdm will let you select what your default display manager is. If it's not installed...well, install it. It'll go into effect on reboot.


8

You can find this option under System > Administration > Login Screen. You'll need to "unlock" the window as this requires administrative privileges. You can then select the user and session you would like logged in automatically.



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