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Questions tagged [display-manager]

The tag has no usage guidance.

-2
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0answers
10 views

Is there a login / display manager in Linux with a config GUI for setting wallpaper (NOT editing config files by CLI)?

I have looked and not found one. I'm surprised, as something as trivial as this should be configurable via a GUI. Even SDDM for KDE doesn't offer this and KDE is normally super configurable via GUI. ...
0
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0answers
43 views

Is a display manager a client of an X server?

https://en.wikipedia.org/wiki/X_display_manager_(program_type) an X display manager is a graphical login manager which starts a session on an X server from the same or another computer. A login ...
0
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0answers
49 views

Ubuntu 18.10-xrandr now showing external output after I switched between Intel and Nvidia in Prime Profiles

Until today when I edited within Nvidia X Server Settings > PRIME Profiles > Intel Power Saving Mode (previously it was set to Nvidia) everything worked and my secondary display was recognized. Now ...
0
votes
1answer
62 views

CentOS 7 SDDM can't click GUI with mouse

I ran a fresh Minimal install of Cent OS 7. When finished, I run this command to get the GUI setup: yum -y install epel-release;yum update -y;yum groupinstall "Xfce" -y;yum -y groupinstall X11;echo "...
0
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0answers
19 views

Do display managers like sddm actually set the login_shell option?

I have a script which distinguishes if it is sourced from within a login shell or not. But it happens not to do its job as the login was done through display manager sddm. #!/bin/bash # /etc/bash....
0
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0answers
20 views

Error in io.elementary.greeter

I am using archlinux. When using io.elementary.greeter with lightdm the screen remained black. You can start the virtual terminal, but it will be returned to the black screen immediately. As I saw ...
0
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0answers
45 views

gdm3 not loading at boot

I am trying to get Symless Synergy version 1.8.8 to autostart when my Ubuntu 18.04 client desktop boots up. I have followed these instructions carefully, but Synergy only starts after logging in. ...
-3
votes
1answer
163 views

What does `lightdm --session-child 12 19` mean?

What does lightdm --session-child 12 19 mean in the following output? Why does lightdm fork a process to execute the above command? I don't find --session-child in lightdm manpage. Thanks. $ pstree ...
0
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0answers
131 views

Arch linux greeter without DM

I'm using Arch Linux with i3wm with xinit which results in having tty1 as my "greeter". I wanna know if there is any possibility to have a greeter, for instance, Deepin greeter at login prompt ...
1
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0answers
15 views

Kali Linux KDE not showing GUI for initial login [duplicate]

this is my first Linux OS, and I'm trying to get more acquainted with my environment. I've got Kali Linux KDE working well, but when I first start linux, it boots into the terminal screen for TTY1 ...
3
votes
1answer
1k views

Cannot change default display manager on Mint 19 Beta

On Linux Mint 18.3, when I used to install mdm, the command sudo apt install mdm would open a prompt such as: and I would choose the default display manager. Running sudo dpkg-reconfigure mdm would ...
4
votes
1answer
2k views

The difference in Ubuntu 18.04 that requires nomodeset?

My laptop which has an Nvidia GeForce 310M GPU is 9 years old and it has been OK with all Ubuntu releases until now. What is the difference between 18.04 and previous releases that causes the black (...
1
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0answers
33 views

Display not working for any user except root on tool vnc for Os Suselinux

I was trying to install SAP Hana Data provisioning agent for which SAP Note said that we need a non-root user who should have read/write access to /usr/sap folder and display access. So I started ...
0
votes
1answer
522 views

Linux mint 18.3 boot at black screen

After apt upgrade, I have problems with booting into the system. Firstly, I was getting the message that Plymouth was missing and Bluetooth failed to initialize. After installing Plymouth theme I ...
1
vote
1answer
2k views

Catch-all command to restart display manager?

Is there a catch-all command to restart display managers (on any given common init system)? I've got systemctl restart display-manager for systemd-based systems currently, but I don't know that that'...
1
vote
2answers
4k views

What is the correct procedure to replace MDM with LightDM on Linux Mint?

OS: Linux Mint 18.3 Cinnamon 64-bit. I almost got a heart attack, after reboot preceding this; in an important VM: sudo apt-get install lightdm ... I chose LightDM as the default DM ... sudo apt-...
1
vote
1answer
571 views

Keyboard doesn't work at graphical login [closed]

After an update, my laptop keyboard doesn't work anymore when I want to login (while the touchpad does). This is true whatever the display manager used (xdm, lightdm). I can't even switch to console ...
0
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0answers
2k views

Will this damage my PC? GRUB_CMDLINE_LINUX_DEFAULT=“quiet splash pci=noaer pci=nomsi”

When I tried to install my Ubuntu 16.04.2 I faced with no screen problem! and PCI_bus errors! after many searching and trying only this modifications on /etc/default/grub solved my problem: ...
0
votes
3answers
289 views

Is there something like Turnkey Linux configuration console out there?

Turnkey Linux comes with this nice blue background console thing that has some basic options like showing the current IP, time, etc. I find its nicer for our system admins (me too) to be greeted with ...
0
votes
2answers
421 views

Could Not Start the X-Server - Linux Mint 17.2

I have an external SSD with Linux Mint Installed onto it (so not as a live USB, but as if it were an internal SSD). I used this around 1 week ago, and it worked fine. Tried to boot into it today, and ...
1
vote
0answers
253 views

Using hardware acceleration without screen/display

I have a Linux machine (ubuntu 16.04) which I want to access using remote desktop. I am currently using Teamviewer for this. As long as the remote machine boots with a screen plugged in, this works ...
0
votes
1answer
2k views

How to set i3 to be the default window manager?

In the Kali login, I have to select i3 in the menu in order to use i3 instead of gnome. How to set i3 as the default window manager (no need of selection?
5
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0answers
715 views

Display manager on multiple tty

I recently upgraded from Fedora 23 to 25, which seems to have broken my display manager configuration. I was using lightdm and was able to switch between 3 GUIs running lightdm by just hitting ctrl+...
1
vote
2answers
259 views

Switch to dvorak layout at boot. (decryption and sddm)

System: Host: MyComputer Kernel: 4.8.14-gnu-1 x86_64 (64 bit) Desktop: LXQt Distro: Parabola GNU/Linux-libre There are three places where my computer wants me to use qwerty input. ...
2
votes
3answers
10k views

Arch Linux, “hang” on “Reached target Graphical Interface”

EDIT: I just tried gnome and gdm and it worked flawlessly. So something with the virtualbox packages and the SDDM package seems to not work. At first this question looks like this one (Arch Linux ...
0
votes
1answer
550 views

I messed up my Ubuntu installation, how to fix it

After installing various desktop environments, just for testing purposes, I messed up my Ubuntu 16.04 LTS and now, The clock has vanished from the top menu bar Unity tweak tool has gone I get unmet ...
1
vote
2answers
57 views

How can I close all currently running graphical programs?

I need to manually install the proprietary graphics driver for my NVIDIA graphics card and to do that I first need to make sure that no graphical programs are running. What is the simplest way to do ...
1
vote
2answers
17k views

How to switch from CLI to GUI Ubuntu

I am currently running Ubuntu 16.04 operating system. In order to experiment, I had asked for the way to login to Ubuntu CLI mode only (i.e. the GUI version must not start at all). In response to my ...
0
votes
1answer
113 views

How to specify the display manager of a new session launched from tty?

When prompting startx from tty, the graphical display start but without any display manager but have a xterm from which my display manager have to be launched. How can I directly launch a session ...
1
vote
0answers
308 views

X display-manager login fails, console login + startx works

I have one machine (my main desktop, as it happens) where I've been unable to login from the display manager for months. As soon as I enter my password, it looks like it's about to start my session ...
4
votes
1answer
779 views

Two monitors. Menu panel on wrong screen

I have a debian 8 jassie with LXDE. I have a two monitors one from my laptop, second is external 24". Second monitor is a above my laptop. If I plug in second monitor he was recognized correctly in ...
2
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0answers
266 views

How can we define a default configuration for xfce4-settings/display?

As in Cinnamon's display manager, I want to make last settings applied for connected display in XFCE4, but XFCE4's display manager asks for configuration (rotation, position etc.) everytime. How can ...
4
votes
1answer
11k views

Change Default Keyboard Layout on Lubuntu 16.04

I installed Lubuntu with QWERTY, and now want to switch it to DVORAK. The documented way to do this is to use the Keyboard Layout Handler on the panel. This works, but only during and within a ...
6
votes
1answer
10k views

what are gnome-session and gnome-settings-daemon?

Can someone explain to me exactly what gnome-session and gnome-settings-daemon do and how they might be useful to me, as someone who doesn't use GNOME or any of its relatives as a DM (i use i3)? I've ...
0
votes
1answer
4k views

Failed to start X server

My system is OpenSUSE Leap I had a problem with HDD that lead to the system not booting. After fixing that and fixing the boot loader I ended up with a failed to start X server. At boot time I got: ...
4
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0answers
532 views

“No protocol specified” when starting Xorg via lightdm, but works when started directly

To start the X server on boot, use of a display manager such as lightdm seems to be the preferred method. However, if I start X by starting the lightdm service, I get a "No protocol specified" error. ...
3
votes
1answer
443 views

Equivalent for `dm-tool switch-to-user `otheruser in different display managers

When using lightdm I can switch to another user by executing dm-tool switch-to-user. Is there a way that doesn't depend on the display manager? If not, what would be the equivalent command for the ...
3
votes
1answer
2k views

Proper way to install mdm display manager in ArchLinux

I am wishing to install mdm display manager in ArchLinux. Normally the similar gdm is used, but I want to be consistent with the Cinnamon desktop I use, instead of Gnome desktop, so I'd also like to ...
0
votes
1answer
216 views

How to recover a failed KDE4 desktop without deleting the entire ~/.kde4 directory?

This is a tale of two 64-bit Mageia 5 GNU/Linux systems equipped with 6xx/7xx nVidia video cards. Each is configured with a KDE4 desktop (task-kde4-minimal-4.14.3-2.mga5), and use a proprietary ...
1
vote
0answers
199 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 ...
1
vote
0answers
39 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 ...
7
votes
2answers
4k 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 behind-...
-1
votes
1answer
437 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
1answer
87 views

After updates my system won't boot into LXDE, X is running but screen stays black

The task bar tries to load, flashing white a few times but then stops and screen stays black, and mouse cursor is available. Here are my updates: Commit Log for Sat Oct 17 10:46:41 2015 Removed the ...
11
votes
4answers
2k 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 ...
1
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0answers
625 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 ...
3
votes
1answer
778 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: ** (...
7
votes
4answers
4k views

What to do when the desktop freezes?

I am on Linux Mint 17. I experienced an unexpected software failure. The desktop did not respond to anything. As I am inexperienced, I only managed to switch to the console using CTRL+ALT+F1 and ...
6
votes
0answers
667 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 ...
11
votes
5answers
96k 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 ...