The tag has no usage guidance.

learn more… | top users | synonyms

24
votes
3answers
5k views

Windows Managers vs Login Managers Vs Display Managers Vs Desktop Environment

I posted a question and noticed people weren't distinguishing correctly between many of these things: Windows Managers vs Login Managers Vs Display Managers Vs Desktop Environment. Can someone please ...
20
votes
4answers
2k views

Terminology reconciliation: Display manager vs. session manager, Windowing system vs. Window manager

I am taking the Linux Foundation's Introduction to Linux course. Some of the terminology seems to overlap or contradict, especially when I try to supplement the course material with other sources, ...
20
votes
1answer
26k views

What is LightDM and GDM

What is LightDM and GDM? In Linux operating system I heard both but I don't know about them and what is called? Where they are used? Are they related to display?
18
votes
8answers
29k views

Is there a simple linux command that will tell me what my display manager is?

Is there a simple linux command that will tell me what my display manager is? I'm using Xfce. Are different desktop environments usually affiliated with different display managers?
8
votes
3answers
27k views

How to boot Debian into text mode without using GUI?

How can I boot Debian into text mode? My mouse and keyboard are working in GRUB, but when the login screen appears they don't, so I can't do anything.
8
votes
3answers
315 views

What display manager/window manager can support multiple monitors with different dpi?

There is no permutation that I have yet found of window manager / display manager, that correctly scales windows and applications on two different monitors with two different DPIs. I have a 40 inch ...
6
votes
1answer
1k views

Understanding linux desktop

I use debian wheezy xfce and want to set up my desktop. But I read some settings are redundant. Hence I want to understand how everything works, but I am massively lost. Can someone please sort, ...
6
votes
1answer
803 views

Does restarting of Display Manager (e.g lightdm) restart X server as well?

If I restart the Display Manager, e.g lightdm, will X be restarted as well ?
5
votes
1answer
233 views

login with xdm and umlaut in password

I want use xdm to login to my machine and start my session. My password contains an umlaut. I'd rather not change the password as it is quite long and complex and I just memorized it. Login works ...
4
votes
2answers
5k views

Mint login screen: wrong keyboard layout

After installing Mint 15 / updating to Mint 17, i'm unable to login using the gui login screen and german localisation with a password containing special characters. Changing the language using the ...
4
votes
1answer
322 views

How to set 3 displays as follows: primary, mirror of primary and secondary?

The current setup of my displays is as follows: I would like the 2nd Sony display to be a mirror of 3rd Dell display, while the 1st Samsung display should remain as separate secondary display. When ...
3
votes
3answers
28k views

Disabling graphical login in Debian wheezy

I have installed Debian wheezy on my machine with a netinst image, now I would like to deactivate the desktop and boot straight to the command line, not only that but I would like to not waste any ...
3
votes
2answers
446 views

Most minimalistic way to switch users in X session

If I want a minimalistic login I can use something like this in my .zprofile: if [ $(tty) = "/dev/tty1" ]; then startx fi However doing this way I cannot switch users on the fly anymore. I.e. lock ...
3
votes
1answer
433 views

Cinnamon not working on Mint 17

I installed Mint 17 on an older desktop and everything is OK, but the start menu is not being rendered correctly. It either does not appear at all when you click on it, or it appears empty (no icons). ...
3
votes
1answer
223 views

Multiple X startup profiles

I run XMonad window manager and use .XSession to startup things like Dropbox and launch other apps I need, at login manager i select User Defined Session. I like to know is there a login manager where ...
3
votes
1answer
408 views

losing unicode support urxvt when logged in as user, root shell has them

I am on a minimal debian testing install. I've set up rxvt-unicode, herbstluftwm, and SLiM. With my username, after SLiM logs me in, all of the urxvt terminal instances i start lack unicode support. ...
3
votes
1answer
848 views

Set up autologin with SLiM

I have installed Arch and am having problems with the auto login options within slim.conf. I have installed the following X packages: xorg-server xorg-xinit xorg-twm, xterm and for the graphics: ...
3
votes
0answers
82 views

How do I get xinputrc to work for login screen?

I have the following lines in /etc/X11/xinit/xinputrc to tame my mouse sensitivity: xinput --set-prop 9 "Device Accel Constant Deceleration" 4.5 xinput --set-prop 9 "Device Accel Velocity Scaling" 1 ...
3
votes
0answers
430 views

When would I use FBDEV vs DRM vs DSS?

I'm new to Linux graphics, and I'm interested in developing a graphics driver. I see that Linux supports three methods for writing graphics to the display device FBDEV DRM DSS2 When would I use ...
2
votes
1answer
2k views

Customized XDM-based login screen

I am in the process of creating a lightweight yet full-featured Linux disto and don't want to include a whole bunch of unnecessary or bloated software. It is supposed to run off a USB flash drive. I ...
2
votes
1answer
166 views

How do display managers log a user in?

I'm about to start working on my own display/login manager. I think I'll be able to handle all of the X11 stuff, but I realized I have no clue what to do when the user types in their username and ...
2
votes
1answer
100 views

When is an account displayed on the Unity login screen?

What are the exact rules for an account to be offered for login on the Unity login screen? I figured out: Locked accounts are still displayed Without password are still displayed Marked as ...
2
votes
1answer
1k views

How to autologin with XDM?

How to autologin a specified user with xdm? I know it's possible with other display managers but I wasn't able to figure out how xdm has to be configured to autologin a certain user. Is it possible? ...
2
votes
0answers
98 views

Lightdm Won't Start in Test Mode With OpenRC

I have a funtoo installation and I recently did sudo emerge x11-misc/lightdm which appeared to work fine, but attempting to start lightdm in test mode with sudo lightdm --test-mode gives this: ** ...
2
votes
0answers
100 views

How do I boot a desktop environment from the command line with no display manager or wifi?

KDE was my DM and I remove KDE and XFCE in turn for LXDE (which I had installed.) When I boot, I boot into the command line and have to login with no GUI. The "startx" command boots me into KDE, even ...
2
votes
0answers
1k views

Cannot log in via a display manager on Debian Jessie

I updated libc on my Debian (Jessie) and with it hundreds of packages. Now I can't sign in using a display manager. After entering password and signing in it loads with a black screen and then pushes ...
1
vote
2answers
1k views

What functionality do I lose by disabling GDM/KDM/SLIM/CDM etc display managers?

I've been wondering lately why do I need GDM, so I got it disabled for the sake of experiment sake by modifying upstart file /etc/init/gdm (I run Ubuntu 10.10 desktop). So now computer boots to ...
1
vote
2answers
73 views

What is the difference between starting x and starting the display manager?

What is the difference between running startx and starting your display manager with sudo service (display_manager) start? Two different events happen, so I am curious as to know the difference ...
1
vote
1answer
2k views

Install Cinnamon on openSUSE

I would like to install Cinnamon on my openSUSE 13.1 minimal installation. But I've the following Problem. I add the repo install it from Yast/Zypper. sudo zypper ar ...
1
vote
1answer
3k views

SLiM not working in Arch Linux with Gnome

I'm trying to change my login manager to SLiM and the theme I want for my login screen is archlinux-simplyblack: [cesar@arch ~]$ ls -la /usr/share/slim/themes/ total 108 drwxr-xr-x 27 root root 4096 ...
1
vote
2answers
8k views

Debian not booting into GUI

My problem is, that my Debian installation shows a grey screen on start up and boots into a console, instead into gnome. When I start X manually with startx everything starts fine, so the DE seems to ...
1
vote
1answer
2k views

KDE 5 in Debian wheezy?

I really hate the look of all the desktop environments officially supported by Debian 7. I also really really like the look of KDE Plasma 5. Unfortunately Debian seems to only support KDE 4, and it ...
1
vote
1answer
806 views

WDM: autologin after boot

I am using Debian Wheezy with wdm and LXDE. I would like to have my user to be logged into LXDE automatically after computer start. I know this is possible with other display managers, such as gdm. ...
1
vote
2answers
1k views

nodm not working on bootup

I've setup and used nodm in the past (it is extremly simple and easy), but now cannot get it working. My base system is Ubuntu 13.04 server, but I have tried Debian and older Ubuntu servers as well. ...
1
vote
1answer
1k views

Fedora 17 boot hangs after changing to CDM

I am running the stock Xfce spin of Fedora 17 in a VirtualBox virtual machine, and just installed the CDM display manager via yum. I modified the /etc/cdmrc file to start xfce, and added the following ...
1
vote
0answers
26 views

Killing a secondary Xorg stops display manager

My computer runs on Debian Stretch. For testing GUI applications purpose, I'm using a second instance of Xorg on display :X (X != 0). After upgrading from jessie to stretch. Killing the secondary Xorg ...
1
vote
0answers
172 views

Display manager mdm fails to load desktop environment

I was having abnormally long waiting times during which the DM was checking my (correct) login credentials. After mucking around with it a bit I decided to remove the mdm package and reinstall it. I ...
1
vote
1answer
925 views

Can't access virtual terminals after manually starting an X server

I'm working on a display manager. When an X server is already started, my display manager works fine and is able to log in a user. However, in order for it to be a proper display manager, it needs to ...
1
vote
0answers
389 views

How do I permanently disable a specific display in gdm?

My laptop has an unknown display always active in the background. It is called "unknown display" in the system settings on Ubuntu GNOME, and it was the same when I was using Unity. I have once ...
1
vote
1answer
220 views

Debugging multiseat: How to run two X server layouts together without display manager?

How to run two X servers together, each with its own layout, directly from command line, without any display manager (e.g. GDB, KDM or LightDM)? Lets say there are two ServerLayout sections in ...
1
vote
1answer
116 views

Enabling a Display Manager in Ubuntu 13.10

I was wondering if anyone knew how to enable/set-up a display manager which prompts for username and password when the screen boots. Whenever I start Ubuntu, it goes to the desktop and then a small ...
1
vote
0answers
1k views

Lightdm does not start after using webkit greeter

I am using lightdm. And I compiled the lightdm-webkit-greeter from source. Here are my /etc/lightdmlightdm.conf settings: [LightDM] [SeatDefaults] xserver-allow-tcp=false ...
0
votes
1answer
95 views

what do i need to do additionally to start X in order to not end in a black screen?

From the xfce desktop environment in Linux Mint, I pressed Ctrl + Alt + Fn in order to get into a virtual terminal, then I stopped the mdm display manager with killall mdm. So far it worked, but once ...
0
votes
1answer
54 views

What is the purpose of having two login managers on one system ?

I read, that the first process born in user-space is called Init, it starts by itself further processes, it also possesses an incorporated login manager. So far, I could understand it, but than I ...
0
votes
1answer
620 views

Display manager unrecognised service, trying to disable “x server” to install nvidia driver, debian wheezy

First time install of Debian wheezy. My nvidia 580gtx GPU is crashing GNOME and the computer. To get it to boot I had to use nouveau.modeset=0 in GRUB. Now that I'm in, I want to install the newest ...
0
votes
0answers
18 views

How to change the date format in the LXDM login/greeting screen (LXDE)

I found a number of resources to change the system (Archlinux 2016-03-01) date format, amongst others one to create a new format from an existing locale file. I then modifed /etc/environment and ...
0
votes
0answers
19 views

LXLE defaults to non-graphic UI on boot, cannot launch LXDE

I installed LXLE (latest ubuntu LTS version w/ LXDE) on an old laptop. During the live session and installation, the GUI worked fine. During installation I chose "automatic login" and upon first boot ...
0
votes
1answer
56 views

Unicode fallback font

When the system displays a text, whose responsibility is to select the appropriate font for the letters? Let's say I have the following 3 fonts installed and I open a website with letters and ...
0
votes
0answers
277 views

LightDM greeter simple prompt Xubuntu 15.10

I've got a problem configuring LightDM (version 1.16.5) under Xubuntu 15.10 such that the greeter only shows a simple prompt like user: __________ password: __________ without proposing users ...
0
votes
0answers
89 views

How to clear external monitor settings (Crash when connecting a laptop to an external monitor)

After some updates, I get an error when connecting to an external monitor. OS: OpenSUSE Leap 42.1 Kernel: 4.1.12 The first time I connect, it will just display on the external monitor, but not on ...