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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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can't signin to ubuntu due to sign-in loop

I am experiencing couple of errors on my ubuntu machine from the booting process to the sign in screen. My Ubuntu is in emergency mode. Whenever I bootup my machine it shows the below message You ...
Malik Muhammad Ahsan's user avatar
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What should i do after "sudo systemctl stop gdm" command?

I was trying to stop and restart my display manager in my VM. but after "sudo systemctl stop gdm". I can't seem to access any virtual terminal. my ubuntu is running on VT2 and I was using ...
Prabhat 's user avatar
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How to log in into another session when the screen is locked?

I used to be able to log in with another account when locking the first session. However, ever since I updated to 24.04 from 23.10 this option disappeared. I can only see this screen: What may be ...
brandizzi's user avatar
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xorg.conf metamode validated and then invalidated

Ubuntu 24.04, Driver Version: 535.171.04 CUDA Version: 12.2 NVIDIA GeForce GTX 970 with 2 monitors attached and NVIDIA GeForce GTX 1070 just for number crunching. xorg.conf isn't a new topic, and it's ...
jsfa11's user avatar
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How can I fix GNOME after a failed upgrade from Ubuntu 22.04 LTS to Ubuntu 24.04 LTS?

I am currently able to use my computer because I am using LXQt and LightDM. Yesterday I attempted to upgrade from Ubuntu 22.04 LTS to Ubuntu 24.04 LTS. Unfortunately the upgrade had some errors. After ...
EricGrahamMacEachern's user avatar
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How to login back to GDM3?

I installed packages to run python code, but during installation some packages conflicted between those that were already installed and I decided to ask about this chat gpt, he suggested removing all ...
Pikl's user avatar
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Gdm.service preventing me to boot, ubuntu 24.04

I can boot all the way up till I keep getting the error of no space left on the device and then gdm.service fails, then I enter sudo to try sudo apt install --reinstall ubuntu-desktop To fix my ...
kenziememes 123's user avatar
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Having to manually start gdm everytime

I recently installed lightdm, Big mistake. It was terrible, So i then un-installed it using systemctl remove lightdm.service. However, I am still having issues. First is that on startup it still has ...
Shahzaib Hassan's user avatar
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174 views

Ubuntu 24.04 won't start display manager. Can only be used properly from remote session

Recently I changed desktop environment from GNOME to KDE and back while I was connecting to my Ubuntu 24.04 PC remotely with XRDP, whereafter my PC won't load display manager and is practically "...
user167420's user avatar
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Blank screen for Xorg based gdm or desktop environment

I have a system that was stopped working with Xorg. This applies to both gdm and desktops like ‘cinnamon’ and ‘unity xorg’. The symptoms are a blank screen and on unmoving mouse cursor. Gdm under ...
Scott Little's user avatar
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Ubuntu 20.04 screen turns purple briefly after entering password on login screen

Same problem 1 Same problem 2 I encountered the same problem as the two above. After I entered the password on the login screen and logged in, my computer screen would be black for a while, and then ...
mrpp's user avatar
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Ubuntu 24.04 doesn't load GUI and login screen after Upgrade from 23.10

Yesterday I upgraded my Ubuntu from 23.10 to 24.04. After successful upgrade, I suspended the system and went to sleep. Today, I noticed that the system stuck at login page. I rebooted the system and ...
Mostafa Ahangarha's user avatar
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1 answer
69 views

Can I safely uninstall gdm3 after switching to lightdm?

Since Ubuntu 24.04 the login screen is not shown as long as my external HDMI monitor was plugged in. I always had to unplug it, login, replug the monitor. I found out that this seems to be a bug in ...
foobar's user avatar
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"GdmSession: no session desktop files installed" after rebooting

I suspended my desktop machine with 24.04 yesterday and found that the lock screen did not react to input. After rebooting it failed to start up the GUI. This is what I found in the logs: $ journalctl ...
LiveWireBT's user avatar
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Part of VSCode window in full screen is unclickable

I have a pretty fresh installation of Ubuntu 22.04. When I maximaze a vscode window, most of it becomes unclickable. If I place another window behind vscode and click on the unclickable part the ...
Nikita Yakunin's user avatar
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72 views

Crashing almost everytime when logging in or after suspend

Ubuntu 24.04, Asus Zenbook 13. Since I updated to 24.04, the suspend function doesn't work well, almost each time I try to log back to my system, there is few seconds of nothing and then one of the ...
greguti's user avatar
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Display glitches and "shakes" back and forth sometimes

A few months ago now, a problem started happening where my entire display appears to "shake" off the screen center and back extremely fast, with graphical glitches appearing as well. This ...
DealTime444's user avatar
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174 views

Most characters disappearing in GNOME after suspend

Legion 5 17ARH05H laptop with AMD Ryzen 7 4800H and NVIDIA GeForce GTX 1660 Ti Mobile Ubuntu 24.04 LTS (issue existed with 23.10, too) NVIDIA drivers 550 (issue exists with 535, too) Everything works ...
MrD's user avatar
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1 answer
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24.04 - gdm3 crash... how to report from terminal? Reporting problem?

This appears to be caused by sudo apt install fuse... Of some peculiar reason gdm3 crashed on me (on a fairly fresh install of 24.04). /var/log files didn't appear to tell anything as I glanced ...
Hannu's user avatar
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Unable to pass the login screen ubuntu 23.10

I upgraded my pc from ubuntu 22.10 to 23.10. Everything went on well after restarting my pc, i couldn't go past the login screen. After many trials without success, i changed the display manager from ...
Lijan Ouma's user avatar
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Wayland no longer enable-able on Ubuntu 22.04 with NVidia?

I have enabled Wayland on Ubuntu 22.04 as follows: /etc/gdm3/custom.conf I set WaylandEnable=true But when I run echo $XDG_SESSION_TYPE it shows x11 I read that Gnome disables wayland when it detects ...
user127203's user avatar
-1 votes
2 answers
114 views

Setting gdm settings through dconf has no effect

I've been trying to disable-user-list at user logon guided by various solutions: GNOME official docs RedHat Fostips and many others that were actually copy-pasted articles This seems to be an old ...
neuling's user avatar
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Delay displaying Active directory user in GDM

After a lot of struggle, I have finally been able to make my laptop work not too bad with Active Directory/winbind authentication. Anyway, I have an annoying issue that I can't figure out. For the ...
Olivier M.'s user avatar
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Files app and all files and folders are not showing up in 23.10 version after reboot

I've run into a problem where the Files app in Ubuntu doesn't show, and even all of my folders and files are hidden from the display screen; even searching in the search box doesn't show them. I tried ...
Dushmanta's user avatar
1 vote
0 answers
245 views

How to control which monitor gdm3 login screen appears on?

Ubuntu 22.04.4 I have five monitors connected to my computer, while facing them from left to right they are monitors 1, 2, 3, 4, and 5. I would like the gdm login to appear on monitor #2. I can't ...
dln949's user avatar
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158 views

Yubikey inserted always asking for smart card login and no longer for password

I'm using Ubuntu 23.10. My company provided me a Yubikey for VPN access and everything works fine. However whenever I turn my pc on, the gdm screen only asks for smart card login (and no longer for ...
Dean's user avatar
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1 vote
1 answer
307 views

GDM Wayland session dies with gnome-shell error No GPUs with outputs found (NVIDIA)

GDM tries to start a Wayland session but gnome-shell dies with "No GPUs with outputs found". GDM doesn't offer a choice of Wayland sessions as a result. System has NVIDIA GPU in addition to ...
maqroll's user avatar
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186 views

Ubuntu 22.04 gui freezes intermittently and permanently. Restarting gdm via ssh fixes until next time it freezes

I have a Linux box, not a laptop. Running "glxinfo -B" yields the following: name of display: :0 display: :0 screen: 0 direct rendering: Yes Extended renderer info (GLX_MESA_query_renderer)...
ecorrales's user avatar
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180 views

GDM3 issues on 23.10

I recently updated to 23.0 and then 23.10 (hoping it would fix the issue). When the OS gets to the screen which would normally be the DM login, it just gives the vague "Oh no!" Message. I've ...
lattice's user avatar
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1 answer
469 views

i3 not showing on my login screen (Ubuntu 22.04)

I newly installed Ubuntu and later i3, it was working for a while but suddenly among other things i3 stopped working, the "other things" were fixed by simply reinstalling them or installing ...
Emac342007's user avatar
1 vote
3 answers
492 views

Doesn't boot to desktop environment after updates

I have a 22.04 machine with an old-ish Nvidia GPU which worked perfectly until today, when I got a message that updates were available, and I chose to install them. Installation concluded successfully,...
OZ1SEJ's user avatar
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1 answer
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How do I login normally to my Ubuntu PC again after an account lockout?

While my Ubuntu 20.04 (Focal) PC was at the lock screen, I inadvertently left an object on the keyboard for over an hour. It repeatedly pressed who knows how many buttons. When I found it, it was ...
jpaugh's user avatar
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1 vote
1 answer
347 views

Ubuntu gdm3 login screen menu

I have gdm3 installed as my display-manager on Ubuntu Budgie and when I log in there is this small settings icon in the right corner with the options: Ubuntu Budgie Ubuntu Ubuntu with Xorg What are ...
John Carter's user avatar
1 vote
0 answers
160 views

Stuck on "username" login screen at startup

I am running Ubuntu 22.04.3 LTS with GNOME 42.9 (see full inxi -F below) and gdm3. Recently, when I try to login to the computer using an attached screen (as opposed to just ssh), the login screen ...
The Roark's user avatar
0 votes
0 answers
171 views

Strange app behavior on wayland

I am trying wayland for the first few times on ubuntu 23-10, but I am experiencing some problems with apps. For starters, if I open several windows in chrome, and some of them contain media (video) ...
Teo7's user avatar
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0 votes
1 answer
90 views

How to fix cursed machine with broken recovery mode and broken GNOME

Recovery mode shows a screen that apparently can't find dpkg/apt/any coreutil executables: here, GNOME crashes after login attempt with correct password, systemctl status gdm shows: Nov 02 16:38:19 (...
Averse ABFun's user avatar
0 votes
1 answer
29 views

Ubuntu won't boot after I installed a ssd

I just got a ssd(sda2) installed, before that I was having Ubuntu in hdd(sdb1). I just loaded Ubuntu 23.10 using a USB and it worked fine, I deleted my hdd partition and remade another partition in ...
モヒっと's user avatar
1 vote
0 answers
801 views

ubuntu 22.04 gdm3 blank screen on boot

I'm running Ubuntu 22.04.3 LTS and can't get gdm or lightdm to work correctly on boot. When it comes up the screens are blank, but the process is running (see below). nvidia-smi returns correct ...
rcedd's user avatar
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1 vote
0 answers
287 views

Inaccessible password field after screen lock, then boot error

I've just installed Ubuntu 23.10 on a new machine. When I return after a break, I find that the screen is locked and I need to enter my password. Once today and once yesterday I have found the field ...
user643722's user avatar
2 votes
0 answers
617 views

gdm-x-session syslog spam

We upgraded to Ubuntu 22.04 from 16.04 sometime ago, ever since upgrading, I noticed a peculiar issue. Our syslog is completely spammed every second or so, by gdm-x-session with the following ...
JosefLintz's user avatar
0 votes
1 answer
1k views

How can I log into an X session on 23.10?

I recently upgraded to 23.10 and seem to be stuck on Wayland. That's a problem because I'm a Nvidia graphics card owner and for the time being that means that Wayland is still pretty ropey. The ...
Oli's user avatar
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3 votes
1 answer
3k views

gdm.service preventing boot

I'm using Ubuntu Desktop 23.10. I've tried every suggestion in this thread as well as many others online, but I cannot get back into the Ubuntu GUI/GNOME desktop environment. I'm using Ubuntu 23.10 ...
boonslang's user avatar
0 votes
1 answer
108 views

No Desktop after version upgrade

Thinks look dark! After doing a system upgrade from 22.04 to 23.04 my laptop displays a black screen, not even wallpaper. However, I can login via ssh. I've flailed about in ignorance and gdm.service ...
StevePoling's user avatar
0 votes
0 answers
28 views

libreoffice problem while install ubuntu-desktop

when I reinstall ubuntu-desktop, I have libreoffice problem: Errors were encountered while processing: libreoffice-common libreoffice-gnome libreoffice-impress python3-uno libreoffice-script-...
scoffieldisxu's user avatar
3 votes
1 answer
321 views

gdm doesn't start after failed attempt to install amdgpu drivers until modprobe amdgpu (Ubuntu 22.04)

Short version: After trying (and failing) to install the AMD radeon proprietary drivers, I uninstalled them and removed the packages it installed, but now: At boot, my graphics card is UNCLAIMED. GDM ...
Peter V. Mørch's user avatar
2 votes
1 answer
969 views

22.04 - GDM Shell crashes (occasionally) after login

How would I diagnose a GDM crash after login. I can still SSH into the machine and I've been "fixing" broken shell session with: $ sudo systemctl stop gdm $ sudo systemctl start gdm What ...
Andor Kiss's user avatar
2 votes
0 answers
135 views

How can I simulate unplugging a monitor's HDMI cable and plugging it back in?

This question is not about how to fix my system to work as it should. If you want to answer that question, see my prior question. In order to get my three monitor system to work I have to physically ...
James Bowery's user avatar
1 vote
1 answer
2k views

Ubuntu 22.04: Freeze/Login Loop caused by GDM

Writing this question as a resource for future readers. Environment: Ubuntu 22.04, Wayland Hardware: Nvidia GeForce MX550 I have an issue where my computer freezes after the login screen. After ...
Daniel Handojo's user avatar
0 votes
0 answers
211 views

Login Loop Ubuntu 22.0.4.3 LTS

Ask Ubuntu community, I would like to share my recent experience of facing a frustrating issue with Ubuntu on my computer. After a system update, I was confronted with a login loop challenge that ...
Kaio Moreira's user avatar
0 votes
1 answer
435 views

Apps unable to connect to the internet after beginning of NVIDIA driver install process

I'm fairly new to linux and like the title says I was trying to install a NVIDIA driver on Ubuntu 22.04 and during this process something went wrong and now the apps on my computer (browser, VPN,etc.) ...
ubuntuuser2204's user avatar

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