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Questions tagged [display-manager]

By Sarah Rodriguez
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A system's display manager (DM) is a graphical login manager. It is the program that starts the X server and user sessions, presenting the user with a graphical login screen (greeter). As of 11.10, the default display manager is LightDM; previously, GNOME Display Manager (GDM) was used.

250 questions
1 vote 1 answer 28 views

After Upgrading Ubuntu to latest version, display is corrupted in many applications

Recently I upgraded the Ubuntu to latest version here is the detail: But after upgrading to this version, Chrome and some other apps are behaving strangely. for instance look at the various ... user avatar Simple Fellow
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1 vote 2 answers 150 views

Turn off display in Ubuntu on Wayland

I recently installed a program on my Ubuntu 20.04 machine that needs Wayland instead of X11 to work. I also frequently used the command xset dpms force off to turn of my display. However, this command ... user avatar Chaitanya Gambali
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2 votes 0 answers 2k views

Black screen problem in Ubuntu 22.04

I am using Ubuntu 22.04 LTS on my Dell laptop with [intel core i3 processor, amd-64 architecture, inbuilt graphics]. Recently I have updated my laptop to Ubuntu 22.04 from 20.04. After installing, it ... user avatar Pravesh Kumar Sharma
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0 votes 0 answers 21 views

When installing various desktop environments, how can one prevent user interactions requesting a selection of display managers like LightDM and GDM3? [duplicate]

I have a Bash setup script for Ubuntu. It is intended to be designed to minimise the user interactions needed to get to a fully set up system. In the script, there might be commands like the following:... user avatar BlandCorporation
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1 vote 0 answers 88 views

Xubuntu 22.04 missing Display profiles

After a fresh Xubuntu 22.04, I'm unable to see or select Display Profiles (see image below). I'm using VirtualBox 6.1.6. Any ideas on how to make it work? Thanks! user avatar moser
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0 votes 0 answers 42 views

cannot enable display-manager

for some reason, the systemctl enable display-manager command fails: Failed to enable unit: Refusing to operate on alias name or linked unit file: display-manager.service my DE is xfce + lightdm ... user avatar Minecon724
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1 vote 2 answers 110 views

enable display-manager after disabling

I mistakenly ran sudo systemctl disable display-manager and I now want to re-enable it, However when I run sudo systemctl enable display-manager I get the error Failed to enable unit: Unit file ... user avatar Sunil Kumar
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0 votes 1 answer 176 views

Ubuntu crashes when not logged in (some malfunction of energy saver), no longer ssh connect

Problem: Ubuntu (18, 19, 10, 22, ...) with Gnome GUI crashes if you boot the machine and do not log into the GUI. Precondition: There is a GUI (should not apply to mere server installations) Mostly ... user avatar opinion_no9
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0 votes 1 answer 450 views

Ubuntu (20.04.2.0 LTS) boots into complete, unresponsive black screen after attempting to restart display-manager (gdm3) from command prompt

Ubuntu 20.04.2.0 LTS desktop installation: Following guidance from this post's accepted answer: How to restart X Window Server from command line? I ran: sudo systemctl restart display-manager (it may ... user avatar user7778287
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0 votes 0 answers 73 views

Display manager SDDM doesn't make use of 3rd monitor

I have computer with 2 videocards and 3 monitors attached - 2 to one card and 1 to another one. I run Ubuntu Server with X and I want to use most lightweight display manager as possible. I’m trying to ... user avatar Serg
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0 votes 0 answers 78 views

How do I get dual monitors to work on Ubuntu 18.04?

I'm running Ubuntu 18.04 with GNOME 3.28.2 on my work desktop, and cannot for the life of me get more than one display to work. It has a stock AMD Radeon pro wx2100 graphics card (my work is not GPU-... user avatar acrisp3
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0 votes 0 answers 38 views

How can I create a split-screen terminal and window manager in VNC?

I am using a Digital Ocean virtual machine with Ubuntu Server 21.04. I would like to view its GUI through a VNC app on my phone. I would like the screen to be fit to the proportions of my phone’s ... user avatar Peter Elbert
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0 votes 1 answer 97 views

Display manager doesn't start with fresh 20.04.3 LTS install

I just installed 20.04.3 LTS as a dual-boot beside Windows 10, and the display manager isn't starting when I boot into Ubuntu. Any idea how to fix this? Instead, I see a black screen with a tiny ... user avatar emchristiansen
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1 vote 1 answer 373 views

Ubuntu 20.04 with KDE - issue with resize to FullScreen

I'm using a laptop with Full HD resolution, but sometimes I need the resolution to be lower. When I try to change it using the following command: xrandr -s 1440x900 the result is not what I expect. ... user avatar dominbdg
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0 votes 0 answers 66 views

can't share my entire screen on ubuntu 20.04 & login loop

I have this problem When I share my entire screen this is shown as a black screen and only the pointer is shown. and also I can't share my terminal I tried many different solutions including this one ... user avatar B3ns44d
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