All Questions
164
questions
-1
votes
1
answer
41
views
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 ...
- 1,592
0
votes
0
answers
16
views
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 ...
1
vote
0
answers
175
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 "...
- 31
0
votes
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 ...
- 103
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 ...
- 121
2
votes
1
answer
5k
views
apport-autoreport.service loaded failed failed Process error reports when automatic reporting is enabled
OS Ubuntu 22.04.1 LTS
Kernel 5.15.0-52-generic
DE: GNOME 42.5
CPU: 11th Gen Intel i5-11300H (8) @
GPU: NVIDIA GeForce GTX 1650 Mobile
Memory: 3173MiB / 15795MiB
I am not ...
0
votes
0
answers
23
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:...
- 524
1
vote
0
answers
504
views
Don't boot shortly after upgrading to 20.04 - but can launch startx manually on recovery mode
Using Kubuntu with Gnome installed (I think this is Ubuntu with extra steps but it's work computer, I did not choose flavor)
Computer is Lenovo T440P with 16 Go RAM (Core i5, integrated GPU)
Upgraded ...
- 111
0
votes
1
answer
463
views
Distortion and tearing effect on internal 4k screen (HP elitebook laptop) with gdm/lightdm
I have a weird distortion and flickering effect happening when embedded videos (inside text content) are running in web browsers or when I scroll in any sort of scrollable content (e.g., webpage, ...
- 1
7
votes
4
answers
2k
views
How do I stop the GUI (in Kubuntu 21.10)
I need to stop the GUI and access a TTY for the NVIDIA drivers. I found this question. However, when I tried sudo service lightdm stop (or the same with gdm), it said this:
$ sudo service lightdm stop
...
- 3,534
0
votes
1
answer
487
views
Ubuntu gets stuck in a login loop unless a different user logs in
I'm trying not to make a duplicate of a previous question, but I do have the same problem. I'm using gdm3 and have purged, and reinstalled multiple times. A different user 'test' and sudo startx work. ...
0
votes
1
answer
376
views
Login Greeter takes 20~30 sec (after bootup apparently finished) to appear
I looked into this question among a few others (on and off SO) for a solution.
The upvoted (but not accepted) answer to that question, suggests entropy might be a problem.
I have infact from the ...
- 143
1
vote
1
answer
79
views
Login Loop and strange PWD
I'm getting the infinite log in loop on Ubuntu for just one of my user accounts - I've tried all of the recommended solutions (modifying .Xauthority, /temp/ and using lightdm)
Strangely when I ctrl+...
- 31
0
votes
0
answers
33
views
Got an unexpected dock
I installed lightdm on my ubuntu 20.04 , and then I switched back to gdm3.
user login page is changed But the desktop environment is not changed yet , and I am facing many problems in it.
I am totally ...
- 13
0
votes
0
answers
883
views
Can not access tty terminal
My HP Probook has problems with Display manager. Basically, for now I can not access even login page (While I am on login page, I can access tty isn't it ? But it is unreachable for now).
I do not ...
- 1
2
votes
0
answers
685
views
GDM3 Crashes system when external monitor connected with Wayland
I installed Ubuntu 21.04 today and would like to use it with my external monitor.
However, I have discovered that connecting the monitor before startup made the system hang at the purple login screen.
...
- 43
1
vote
0
answers
201
views
How to disable the "screen locking disabled" notification in gnome 3.38?
This message pops up after every login, this started happening when I removed the desktop icons gnome extension - DING https://extensions.gnome.org/extension/2087/desktop-icons-ng-ding/ (I'm using ...
- 111
1
vote
0
answers
132
views
Ubuntu 20.04 LTS - Why am I only in one group?
I am experiencing the same problem as noted at:
Why my linux account only belongs to one group?
I am running 20.04 and GDM. I've also:
Followed every suggestion I could find related to disabling ...
- 11
1
vote
0
answers
751
views
Display Managers gdm3, xdm not working after upgrade to 20.04; lightdm stuck in login loop, only LXDE working [duplicate]
I just upgraded to Ubuntu 20.04. But I'm now stuck with problems with display managers.
GDM3 (preferred DM for me) and xdm are just stuck at a black screen (with a blinking cursor/underscore).
Next ...
- 71
2
votes
1
answer
2k
views
Failed to start Light Display Manager on boot for Ubuntu 20
tl;dr; Light Service DM is not starting. I have tried fixing it via GDM3, was unable to do so due to broken packages. I think that somehow NVIDIA is involved, but I am not sure. Where to start from ...
- 165
0
votes
0
answers
33
views
how to report problem on ubuntu Wiki page? why there is lightdm and not gdm?
I wanted to ask why is there (here https://help.ubuntu.com/community/SoundTroubleshootingProcedure) in Step 1 lightdm package installed? I believe Ubuntu does not use lightdm but gdm, right?
I cannot ...
- 508
0
votes
1
answer
84
views
Getting issue with display on Ubuntu 18.04.4
While running docker for scraping/splash, I kept getting notification of "Empty Trash" which indicated that the disk was out of space.
After few seconds,GUI got stuck. I powered of the ...
1
vote
1
answer
602
views
problem with ubuntu booting
I guess I ran some command trying to install something. After that, when I tried to restart my PC, it showed
error while reading block run fsck manually
which I did. After that, it was stuck in ...
- 11
1
vote
0
answers
35
views
How do I disable the guest user without lightdm? [duplicate]
In versions of ubuntu above 16.04 the default display manager is gdm3. I am attempting to remove the guest user from an ubuntu VM but I don't know how to do it without lightdm. How do I do this? I ...
- 32
1
vote
1
answer
2k
views
Search your computer => "Sorry, there is nothing that matches your search."
Switching from GDM (GNOME Display Manager) to LightDM on Ubuntu 20.04 LTS broke "Search your computer" functionality.
Fix found:
apt install ubuntu-unity-desktop
apt remove gnome-shell
dpkg-...
- 25
2
votes
0
answers
1k
views
Unable to log into 20.04 -- How do I fix Fbcon?
Noob here.
I messed something up when I tried to install Linux Homebrew and now I'm unable to log into my main desktop (I get kicked out when I correctly enter my credentials). I've since uninstalled ...
- 21
0
votes
1
answer
1k
views
Ubuntu 18.04.4 LTS stuck on black screen 2 days after OS being installed (won't start GDM or lightdm)
I installed ubuntu 18.04.4 LTS 2 days on a desktop with intel processor and integrated VGA, and was downloading and configuring everything how I liked, including xubuntu-desktop, but I was using gdm3. ...
- 115
1
vote
0
answers
312
views
lock screen when screensaver is deactivated? gdm3
Is it possible to lock screen AFTER screensaver is deactivated in dgm3?
I was using lightdm/light-locker what had this setting
Ubuntu LTS 20.04
GNOME 3.36.2
- 41
0
votes
3
answers
7k
views
gdm3 login loop, lightdm works in Ubuntu 20.04
A lot of people seem to have this issue, and many people have been able to fix it, but I have used every fix (besides reinstalling Ubuntu or creating a new user and moving stuff over) and have not ...
- 347
10
votes
3
answers
15k
views
Can't lock screen with shortcut on Ubuntu 20.04 gnome
In shortcuts i have Super + L for locking screen. But on pressing it - nothing happens. In syslog:
gsd-media-keys[1979]: Couldn't lock screen: Cannot invoke method;
proxy is for the well-known name ...
- 480
0
votes
1
answer
1k
views
How to disable GUI and only use terminal?
My laptop is running very slow so I thought about disabling the GUI and some preferred me to use this command to disable GUI
sudo service gdm stop
But using this command i am not abled to type ...
- 13
1
vote
1
answer
2k
views
Issues with Lightdm and gdm3 on ubuntu 20.04
I have been using ubuntu 20.04 since release, I started with gdm3 and then I got the infamous login loop error which I couldn't solve without switching to Lightdm. The issue is when I switch to ...
3
votes
0
answers
2k
views
Ubuntu 20.04 XDG_SEAT, XDG_VTNR, XDG_SESSION_ID env variables are not set
I set up and installed Ubuntu 20.04 using debootstrap method
debootstrap --arch=amd64 --variant=buildd focal ./focal_amd64 http://archive.ubuntu.com/ubuntu/
then installed all the rest.
It runs ...
- 5,182
0
votes
1
answer
751
views
Black screen login loop when using GDM3
Problem
Hello everyone! I am having a problem with my Ubuntu computer using GDM3. My machine gets to the GDM3 login screen just fine, but whenever I type in my password and hit the button to log in ...
- 101
0
votes
0
answers
247
views
Is LightDM necessary after installing GDM3
Do I need to keep LightDM after installing GDM3. If not then will it effect any other programmes on removing. Please do not hesitate to ask any info or data needed regarding this problem.
N.B.: I ...
- 3,209
2
votes
0
answers
608
views
How to restart gdm on login loop from tty?
When using lightdm, when encountering a login loop after waking from sleep I can do Ctrl+Alt+F5 to drop into tty5 for example. After logging in, I write sudo service lightdm restart into the terminal, ...
- 1,102
3
votes
1
answer
1k
views
18.04 `sudo dpkg-reconfigure lightdm` falls back to gdm3 after unity greeter
Situation
Ubuntu 18.04.4 LTS
ubuntu-desktop 1.417.4
ubuntu-unity-desktop 0.1
lightdm 1.26.0-0ubuntu1
Action
Starting off from a GNOME enviroment, I have run sudo dpkg-reconfigure lightdm, chosen ...
- 1,451
1
vote
0
answers
436
views
Ubuntu 18.04 lightdm does not work properly
I do not like gdm on Ubuntu 18.04 so I have replaced it with good old lightdm and unity-greeter with the following command:
sudo apt install lightdm unity-greeter
I've also selected lightdm in ...
- 385
1
vote
1
answer
450
views
Ubuntu Freezing after login, can't install gdm3, other solutions not working
I am on Ubuntu 18.04.3 LTS, and the computer freezes after I enter in my login information.
I have looked thoroughly at the solutions presented on Ubuntu gets stuck in a login loop but none of them ...
- 318
2
votes
1
answer
253
views
Missing and leftover desktop manager sessions
After installing the various *ubuntu*-desktop packages, I had too many possible sessions, so I uninstalled all but the default (xubuntu-desktop in this case). However, the sessions had not yet gone ...
- 131
1
vote
1
answer
2k
views
Ubuntu 19.04 nvidia 430 : only one display works at a time
sorry to include you in this mess but I'm pretty sure I'm not the only one with this issue:
I have a relatively new notebook with a Ge-force 1050TI. Since I need to be able to run preliminary models ...
- 11
0
votes
0
answers
832
views
Ubuntu 18.04.2 LTS support for Intel Core M Processor
I never installed a Ubuntu Desktop on Intel Core M processor before and not even on current laptop. I am trying out Ubuntu 18.04 LTS. I am facing non-smooth animations of app drawer and stuttering of ...
- 188
3
votes
2
answers
2k
views
Ubuntu 18 login loop + startx works
So recently I got stuck in a login loop on Ubuntu 18. I tried some solutions posted here but none of them works for me so far. Here's what I tried by accessing terminal from login screen:
Checking ...
- 131
0
votes
0
answers
288
views
System tray icons disappeared
I have Ubuntu 18.04 on my system and recently I started using lightdm instead of the default gdm. Every thing works well except that my tray icons are not showing now.
Rarely do they show (once in 7 ...
- 322
0
votes
1
answer
2k
views
Login Loop on Ubuntu 18.04.1
I am a beginner Linux user and have been using, as mentioned, Ubuntu 18.04.1 for about three months. So far, since I know I lack sufficient experience, I have avoided messing with anything tricky or ...
- 223
1
vote
0
answers
478
views
Ubuntu flashes with a black screen without getting logged in
I was installing drivers for Nvidia GPU where I stopped lightdm to do so.
The drivers were installed through shell (ctrl+alt+f4) which I could verify.
And then I tried to login to my ubuntu desktop. ...
user849263
4
votes
1
answer
5k
views
How do I switch back to LightDM from GDM3 in Ubuntu Mate 18.10
So while trying to solve Logitech TouchPad T650 intermittent freezing issue, I installed Solaar ( https://pwr.github.io/Solaar/ ) via Synaptic. During the installation, it asked me to select between ...
- 2,186
5
votes
2
answers
8k
views
Reconfigure the display-manager non-interactively
I am trying to change the default display-manager on a Ubuntu 18.04.1 in a non-interactive way to do this in a script.
Everything works as expected when using
dpkg-reconfigure gdm3
dpkg-...
- 6,243
2
votes
0
answers
3k
views
18.04: Even with WaylandEnable=false gdm3 and lightdm only load sometimes
I am happy to use either gdm3 or lightdm, but neither are stable on my Ubuntu 18.04 system, they will work for either one or several boots after I take corrective action, but inevitably this results ...
- 83
2
votes
2
answers
3k
views
Problem with lock screen after suspend
I'm running Ubuntu 18.10, and I've changed my login screen to lightdm (since I don't like the gdm3 screen), but whenever my laptop suspends, it'll still show the gnome lock screen to log back in. ...
user909509