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Questions tagged [gdm]

GNOME Display Manager (GDM) is a program which provides Ubuntu GNOME's graphical login screen.

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86 votes
3 answers
101k views

Is there to make the login screen appear on the external display in 18.04?

On Ubuntu 18.04, I have connected my laptop to an external display and I am able to set the external display as primary and external display only mode. But when I turn on my laptop or log out from my ...
Aravind's user avatar
  • 1,408
74 votes
7 answers
330k views

How do I switch from LightDM to GDM?

How do I switch from the default display manager (Lightdm) to the older display manager (GDM)?
Ron Belcher's user avatar
44 votes
4 answers
93k views

How do I change login screen theme or background in Ubuntu 20.04?

How can I change the Ubuntu 20.04 login screen theme or background? In the previous version 19.10, I can change it from the CSS file under Yaru theme but now there is no CSS file.
Dion's user avatar
  • 441
40 votes
9 answers
227k views

GDM3 does not start in Ubuntu 18.04

I recently upgraded my laptop from Ubuntu 17.04 to 18.04. It worked perfectly well and I have been using it without any problem, but yesterday I issued sudo apt upgrade and it upgraded some packages. ...
Vajira Prabuddhaka's user avatar
25 votes
2 answers
66k views

Remote login with graphical display manager (GDM, LightDM)

Is it possible to remotely (via ssh) make a login to GDM? I'll explain a situation in which I'd need this: I'm on my laptop and connect to my desktop via ssh. I realize there are some updates ...
luri's user avatar
  • 4,112
60 votes
1 answer
32k views

How do I switch between console mode and GUI in 17.10 and newer?

After upgrading to 17.10 like a true pioneer, I found the old CtrlAltF1 no longer switches between console mode and GUI, and a quick Google search brought up nothing useful. Was this feature removed ...
Aero Windwalker's user avatar
18 votes
1 answer
10k views

Why is my GDM at a different TTY than my desktop environment?

I am running Ubuntu Gnome 16.10 (64bit). Gnome-shell version 3.20.4. When I start my computer, I eventually see GDM3 offering a login prompt, as expected. After I log in, my monitors flash a little (...
JoshuaD's user avatar
  • 537
36 votes
1 answer
143k views

How to change from GDM to LightDM?

I've upgraded to 12.04. My upgrade didn't go as expected; X crashed at the middle of the upgrade. I had to install many packages manually. This left me with a GDM login screen. How do I change from ...
Eduardo Pinheiro's user avatar
80 votes
8 answers
100k views

How to hide users from the GDM login screen?

I have recently added several new users, that I need for qmail. Now they appear in the box in the login screen and clutter it, and I have to scroll to find my user. How can I hide those users from the ...
gruszczy's user avatar
  • 1,161
59 votes
7 answers
468k views

How does one exit the X server?

The command sudo service gdm stop would successfully disable the X server in Ubuntu 11.04 temporarily. However, this same command no longer works in Ubuntu 11.10, because "gdm" is an "unrecognized ...
user avatar
13 votes
2 answers
43k views

18.04: How to get Wayland back after upgrade to 18.04?

Since 17.10 I got familiar with Wayland and I really need the per-monitor-scaling! How can I start a wayland session after dist-upgrade to Bionic? There is no option in GDM available out-of-the-box. ...
user200016's user avatar
12 votes
3 answers
13k views

Cannot change login screen background in 18.10

I changed both the desktop and login screen background photos. However,only desktop photo is changed. The one on the login screen is still the purple Ubuntu one. Is this a bug?
lovedrinking's user avatar
1 vote
1 answer
731 views

Ubuntu 18.04 booting in console mode even after reinstalling drivers

So basically I just did one thing (or one mistake I would say): apt-removing python2 and python3 since I wanted to reinstall it for other reasons. During the process I think it may removed something ...
browser-bug's user avatar
34 votes
5 answers
33k views

How to make the lock screen look like the login screen?

Is there any way to make the login screen from a locked session (either by using Ctrl+Alt+L or from a screen timeout) look like the login screen when you're starting a new session? I hate that ...
Chris Kerrigan's user avatar
32 votes
1 answer
13k views

How do I replace the desktop by an application?

Sometimes it may be needed that a user only has access to a certain application. Running the desktop environment then may be unwanted be it either for security reasons or for acchieving a better ...
Takkat's user avatar
  • 143k
29 votes
7 answers
56k views

How can I change the login screen theme in GDM?

How can I change the Login screen theme? Is there a graphical way or no?
Weboide's user avatar
  • 10.6k
111 votes
1 answer
154k views

What's the difference between GDM and LightDM?

What is the difference between GDM and LightDM? How can one switch between them. I mean if I have selected LightDM during installation process, will I be able switch to GDM?
user7044's user avatar
  • 3,861
3 votes
9 answers
10k views

Resolution issue causing login screen loop

My ubuntu (version 10.10 I think) is stuck in loop at the login screen. Looks like it could be a resolution issue. - I have an nvidia graphics card (gs 8400). I previously had it connected to a 19" ...
cdugga's user avatar
  • 135
10 votes
0 answers
5k views

How to disable login sound? [duplicate]

Possible Duplicate: How do I disable the drum beat sound on the login screen? How do I disable the login sound? I have tried all guides on the internet I can find, but they are for previous ...
Sumire's user avatar
  • 101
9 votes
2 answers
27k views

How can I replace LightDM with MDM?

Linux Mint Cinnamon 1.4 released with "MDM display manager". It is based on the code of GDM2.20. It provides: Graphical configuration tools Themeability Remote, automatic and timed login Event ...
Khurshid Alam's user avatar
37 votes
11 answers
151k views

How to restart only missing/invisible mouse pointer/cursor?

For some reason, the mouse pointer on my Ubuntu 10.04 PC disappears after the computer is woken up from suspend. That PC is missing a keyboard, so I can fix this by logging via ssh, and issuing: ...
sdaau's user avatar
  • 3,096
18 votes
3 answers
19k views

How to get the GNOME 3 login manager installed?

I was wondering if it is possible to get the GNOME 3.2 GDM login theme working on Ubuntu 11.10. I installed GDM alongside LightDM, but the GDM greeter is really ugly.
Ubuntuser's user avatar
  • 9,836
40 votes
7 answers
62k views

Force gdm login screen to the primary monitor

I have two monitors attached to my video card. Primary monitor has a resolution equal to 1280x1024 and the second has 1920x1200. My gdm login screen always appears on the second monitor even if it is ...
Kirill V. Lyadvinsky's user avatar
32 votes
3 answers
6k views

How can I change the order of the users in the login screen?

I have several user accounts on a machine my mother uses most of the time. How can I sort the users so that her account shows up first in the list?
ParanoiaPuppy's user avatar
11 votes
6 answers
40k views

How to change the login screen resolution in Ubuntu 18.04

I need a way to change the boot-up and login screen resolution to 1920 x 1080 resolution. I have a 4K display on my laptop and can't read the text in the grub bootloader screen properly as they aren't ...
Bernard Wei's user avatar
  • 2,145
3 votes
1 answer
7k views

How to login to the Ubuntu (not GNOME) session on a remote server using xRDP?

I am using Ubuntu 22.04 running on a remote server, which I am accessing over xRDP. When I login, it seems to load the "GNOME on X.Org" (and not the Ubuntu) session. Since I am using RDP, I ...
Archisman Panigrahi's user avatar
21 votes
1 answer
54k views

How do I make GDM the default display manager?

I believe my question says what I am trying to achieve. Steps I tried to make gdm my default display manager: sudo dpkg-reconfigure than select gdm as my default. Edit /etc/X11/default-display-...
RanRag's user avatar
  • 555
16 votes
5 answers
28k views

Scaling Gnome login screen on HiDPI display

Running Ubuntu Gnome 17.04 on Lenovo yoga 2 pro. Display is 3200x1800. My desktop scales fine, and was done automatically without any configuration when installing. My login screen however, everything ...
rosghub's user avatar
  • 261
11 votes
3 answers
19k views

How can I make a script run automatically after gdm login and logout?

I have a setup where my users log on using ldap and it works just fine. I want to run a script after my users login (its a script that will detect which groups they are in and map network shares ...
Fernando's user avatar
  • 1,015
10 votes
2 answers
5k views

GNOME: supend on laptop lid close no longer works since 19.10 upgrade

I'm quite positive that this used to work flawlessly in 19.04 (and past releases) but no longer does after a release-upgrade to 19.10 (kernel 5.3.0-24, ThinkPad X1 Carbon gen 5 in case this matters). ...
sxc731's user avatar
  • 1,144
9 votes
1 answer
3k views

18.04 recently lost tap-to-click at login (gdm)

I recently lost tap-to-click ability at the login screen (gdm). I originally enabled it in 17.10 and it survived into 18.04 until a few days ago. So I'm not sure what happened. I followed ...
vaskark's user avatar
  • 253
3 votes
1 answer
10k views

Installing Nvidia Graphics drivers on Ubuntu-GNOME 16.04

I am using Ubntu-GNOME 16.04 with GNOME 3.20 When I install Nvidia graphic drivers by sudo apt-get install nvidia-361 , I am facing the following problems. During the installation of Nvidia-361, it ...
Severus Tux's user avatar
  • 9,936
45 votes
6 answers
389k views

How do I kill the x-server?

Every time I try to kill the x-server, sudo service lightdm stop so that I can install the latest Nvidia drivers, I get an error message. stop: Unknown instance: What am I doing wrong?
Mysteriousness's user avatar
30 votes
4 answers
78k views

How to disable GUI on boot in 18.04 (Bionic Beaver)?

It appears that sudo systemctl disable gdm3 && sudo systemctl disable gdm do not work in 18.04 to disable the windowing system at bootup. What's the method for doing this now?
ylluminate's user avatar
  • 1,499
12 votes
5 answers
30k views

How to install the full GNOME desktop as close to upstream as possible?

Just like the title says. I don't want just Gnome Shell I want to know how to install the whole entire desktop, with the latest GDM(not the 3.0.4 currently in the repos), all the default apps, all of ...
Relik's user avatar
  • 507
9 votes
1 answer
54k views

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 ...
Chaosor's user avatar
  • 373
9 votes
10 answers
38k views

Ubuntu 18.04 Login window loop

Is there any reason the login window would stop working and start looping? I'm running 18.04. I normally RDP into the ubuntu box, but that isn't working now. Using a keyboard and mouse, I see my ...
Emmit's user avatar
  • 301
8 votes
1 answer
18k views

Disable auto-login from the CLI

After successfully installing Ubuntu and logging in to the Unity desktop, I followed the prompts to enable the proprietary display drivers. After rebooting, the Unity desktop is now entirely ...
FoleyIsGood's user avatar
7 votes
1 answer
12k views

Ubuntu 17.04 does not boot when enable gdm3

Recently I switched from Ubuntu 16.10 to Ubuntu 17.04. Reading this news, Ubuntu 18.04 To Ship with GNOME Desktop, Not Unity, I decided to switch to gnome. sudo apt-get install gnome-shell gnome At ...
rafrsr's user avatar
  • 1,306
5 votes
1 answer
28k views

gdm not working with Ubuntu 15.10

I just upgraded to 15.10, and everything went smoothly. One of the first things I did was install gnome-shell, and switch from lightdm to gdm. However, when I restarted, after an initial purple Ubuntu ...
elethan's user avatar
  • 682
4 votes
3 answers
4k views

Cannot switch keyboard layout at GDM login

I just put my drive with my existing Ubuntu 17.10 installation from my old into my new laptop which has a different keyboard layout and I noticed that the functionality to switch keyboards is missing. ...
LiveWireBT's user avatar
  • 28.9k
3 votes
1 answer
15k views

How to set unity as default after installing ubuntu-gnome-desktop in Ubuntu 16.04?

Recently I installed gnome-desktop in my Unity Ubuntu 16.04.Now I want to set my Unity desktop environment as default. I installed Gnome by using these commands : sudo apt-get install ubuntu-gnome-...
Rishabh Agrahari's user avatar
2 votes
1 answer
3k views

How to assign a priority number to "update-alternatives --config gdm3.css" in a single cmdline?

I am able to run these commands in the terminal: $ sudo update-alternatives --install /usr/share/gnome-shell/theme/gdm3.css gdm3.css /usr/share/gnome-shell/theme/mytheme/mytheme.css 10 $ sudo update-...
Sun Bear's user avatar
  • 2,422
2 votes
2 answers
2k views

Login screen problem, boots into text mode instead of GDM [closed]

I cannot enter to the normal Login interface. If I do it will enter into tty1 mode. I just can enter using recovery mode. How can I solve this problem? This happened 3 month before and after I just ...
fly_high_hahaha's user avatar
2 votes
1 answer
3k views

Unable to switch to gdm3 in 17.04

I'm trying to get the full gnome experience and I was trying to switch from lightdm to gdm3. I did this by changing /etc/X11/default-display-manager. The problem is that, after closing the session, ...
ferdez's user avatar
  • 35
1 vote
1 answer
2k views

Ubuntu 18.10: Screen lock options grayed out

Recently upgraded to Ubuntu 18.10, having two problems. Easiest to explain: when I open "settings", go to "privacy", select "screen lock", I get the popup window with the screen lock settings, but ...
Mike Jones's user avatar
58 votes
4 answers
164k views

Is gdm3 preferred to lightdm?

I have hard a hard time finding good information on the performance difference between display managers on Ubuntu (specifically between lightdm and gdm3). With Ubuntu switching to Gnome, I would ...
Startec's user avatar
  • 1,825
33 votes
3 answers
50k views

Multi display issue with Ubuntu GNOME 14.04 [closed]

Fresh install of Ubuntu GNOME 14.04 with 3 displays (fglrx driver). I can correct the screens order in System Settings / Display but it is not saved when I close the session and reopen it. Screens ...
chewiiie's user avatar
  • 341
19 votes
6 answers
22k views

Black screen after waking from suspend on Ubuntu 20.04

I am very new to linux. On my laptop I have a multiboot with Windows 10 and Ubuntu 20.04 on the same disk. The problem is when I suspend to RAM and then wake it up by pressing the power button, the ...
nice-guy's user avatar
  • 191
16 votes
2 answers
11k views

How do I access console from GDM ? (wayland)

When on GDM login screen, Ctrl+Alt+F3 ... F7 does not work. After logging into GNOME desktop, then Ctrl+Alt+F1 will bring me to GDM, F2 back to GNOME, and F3 to F7 to a TTY terminal. But before I log ...
alci's user avatar
  • 5,839