All Questions
67
questions
-1
votes
0
answers
44
views
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 ...
- 1
0
votes
1
answer
77
views
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 ...
- 552
2
votes
1
answer
725
views
Ubuntu 20.04 Gnome VNC problem
I use tigervnc server, gnome, on ubuntu 20.04. The problem is, if I lock the screen from VNC viewer then I will never able to login again from VNC. I still can type the password, but even if I hit ...
- 121
1
vote
0
answers
337
views
Blank boot screen: Potential gdm3 package issue
I am running Ubuntu 20.04 on an offline machine. Recently the display port video output has stopped working and it just shows a blank screen with a flashing underscore in the top left corner. I can ...
0
votes
0
answers
278
views
ctrl+alt+f1( or f2...) is a black screen. (Ubuntu20.04, Gnome, gdm3)
Ubuntu 20.04 LTS startup with gdm3 can normally show the login window.
But, When I type ctrl+alt+f1( or f2...), the screen goes black.
I'm a beginner. I've tried every "fix" I've found ...
- 1
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
1
vote
0
answers
574
views
Ubuntu 20.04 somehow starting 2 users?
I have Ubuntu 20.04. I was trying to setup chrome remote desktop and then after I set it up and try to connect I had to choose session it was black screen and when I restarted my computer I prompted ...
- 111
1
vote
1
answer
167
views
Ubuntu 20.04 Hangs when Unlocking
The problem manifests as follows:
I walk away from my computer, come back about 15 minutes later to find that the screen has gone black and the computer has locked (as expected). I tap the space bar ...
- 11
2
votes
1
answer
15k
views
How to use Wayland for the gdm login screen?
I'm on Ubuntu 20.04 and would like to use Wayland as the GDM login screen, to avoid the gnome-shell owned by gdm consuming my RAM.
WaylandEnable=false is disabled in my /etc/gdm3/custom.conf
- 186
1
vote
0
answers
2k
views
gdm3/gnome does not start/crashes
I installed Ubuntu 20.04.3 (Gnome version 3.36.8) on two different systems (one desktop, one laptop). On both systems after the first boot the login manager does not come up and I have to login via ...
- 143
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
1
vote
0
answers
162
views
GDM logout script doesn't write to a file
I'm trying to write a logout script that will be executed when a user graphically logout.
For this purpose I've added the script into the file: /etc/gdm3/PostSession/Default
In the script I'm writing ...
- 11
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
0
answers
16
views
Unable to go to bios settings and stuck at gdm.service [duplicate]
Logged off from my Ubuntu 20.04 and restarted the system. When I'm trying to check bios settings, my system is getting stuck at gdm.service Stuck at gdm.service
I tried to plug my usb drive and usb ...
- 17
1
vote
0
answers
86
views
How to disable Username-input field (StEntry) Ubuntu 20.04?
Is it possible to hide or disable the input-field for Username in the logon screen on Ubuntu 20.04 - making it "impossible" to type into the field for a period of time? Reason for this is to ...
- 171
1
vote
0
answers
945
views
Cannot install A GUI in my computer
I am on Ubuntu 20.04. Whenever I try to boot up my computer I get nothing only black screen. If I press ESC, then I can see only /dev/sda2 clean, etc. Nothing else. It looks like there is no GUI on it....
- 11
0
votes
0
answers
2k
views
Using multiple desktops at once on Ubuntu
My aim is to separate my working space from any other spaces while using the same computer and the same OS. When I start the operating system (Ubuntu 20.04), my desktop environment (Gnome) starts ...
- 200
1
vote
0
answers
2k
views
Xauthority file inside /run/user/1000/gdm/Xauthority instead of my home directory
I'm currently experiencing the log-in loop bug, and I found out that the .Xauthority file isn't in my home drive at all, but rather inside /run/user/1000/gdm/Xauthority. None of the websites I used to ...
- 11
1
vote
0
answers
308
views
How to change lock screen and login screen theme to any other theme
I need help changing the login screen theme as well as the lock screen theme to Orchis.
I tried:
How to customize Lock Screen theme in Ubuntu 20.04
Change Ubuntu 20.04 login theme
How do I change ...
- 115
0
votes
0
answers
86
views
Sometimes I get a black screen
On Ubuntu 20.04 sometimes when I get out of sleep I have just a black screen. I might get it also just when I get out of the lockout. The login page does not appear I just have a black screen.
I use 2 ...
- 284
2
votes
1
answer
303
views
How to disable Livepatch window on boot?
I am working on a AWS instance running Ubuntu 20.04 LTS. My display manager is gdm3.
When I access the instance via xrdp, I see this window:
I'd like to disable this popup via a bash command. How do ...
- 147
1
vote
1
answer
516
views
20.04 GNOME Desktop would not load after login
Sometimes my desktop would be stuck loading after I log in. I'd get an entirely purple screen with a functional mouse pointer but nothing else. Usually the rest of the desktop would load in normally ...
- 111
3
votes
1
answer
5k
views
How to change Ubuntu 21.04 Orange color? It persists even after changing GTK theme
I use gnome 3.38.5 on ubuntu 21.04.
My tweaks setting:
basically i wanna change all the orange colour on ubuntu.
for example the border of this research form or those of the monitor preview on the ...
- 39
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
1
answer
444
views
Device won't go to login screen after removing gdm3
My Lenovo Legion laptop has Ubuntu 20.04 on it. My initial problem was that, when I boot up the laptop after it goes to sleep, the screen will remain black and I have to reboot to log in again.
I saw ...
2
votes
0
answers
2k
views
Connect to Ubuntu 20.04 via VNC before login (with GDM3)
Good day,
I need to be able to connect via vnc to an Ubuntu 20.04 client, log out via it and log back in. My problem: VNC can not connect when I am in the login screen. I know this is a general ...
- 21
0
votes
0
answers
214
views
What versions of GDM are used in Ubuntu 20.04 and 20.10?
What versions of GDM are used in Ubuntu 20.04 and 20.10? I found the version history of GDM: https://help.gnome.org/admin/gdm/
I need this to submit a bug on GDM's bugtracker
- 1
0
votes
0
answers
590
views
Customizing theme - where is the purple background set?
I've customized my GDM theme and Gnome Shell theme in Ubuntu 20.04 (using Yaru as the base).
To do this I have modified both /usr/share/gnome-shell/gnome-shell-theme.gresource and the files in /usr/...
- 12.5k
0
votes
0
answers
637
views
How to customise GDM?
I found this article, but there is no such setting in Ubuntu 20.04 am I right?
0
votes
1
answer
3k
views
Black screen with blinking cursor when booting!
I installed ubuntu 20.04.2 LTS. After installing, I restarted and everything was working fine. Today when I tried to boot up ubuntu again, I was met with a black screen and a blinking cursor.
running ...
0
votes
0
answers
178
views
Computer does not complete boot cycle
Version is Linux dad 5.8.0-44-generic #50~20.04.1-Ubuntu SMP Wed Feb 10 21:07:30 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
I've got a newer system76 which will complete grub and the initial boot menus, ...
- 21.5k
0
votes
0
answers
155
views
Login Screen: Disable the password visibility toggling button
I have a default 20.04 Ubuntu install and the login screen has a password-visibility toggling button (an eye). I wish to disable this button and make the password always invisible. How can I do this? ...
- 1,336
1
vote
0
answers
246
views
Machine starts to blank screen with blinking underscore every time, even after restarting gdm3
I have a Dell Precision 7540 with Ubuntu 20.04. I came into a problem where my machine would boot and get to a screen with a blinking underscore. This occurred after I closed my laptop, it had a blank ...
- 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
1
vote
0
answers
236
views
How to play a video before/over top of GDM in Ubuntu 20.04?
On my PC running Ubuntu 20.04, I want to play a video before GDM starts/over top of it. Not after logging in, but that.
Is there any way to make Ubuntu autoplay a video in the plymouth screen before I ...
1
vote
0
answers
969
views
Screen goes crazy with noise and ubuntu freezes
Description:
Ubuntu screen gets crazy with black and white "noise", this has happened several times. It seems that Ubuntu is also frozen in this state because I cannot connect with ...
- 511
2
votes
1
answer
611
views
Set user SystemAccount to false
I have the same problem listed here.
But when I change the SystemAccount property to false and reboot, it is set back to true.
Even if I only logout the property is set back to true.
I also tried ...
- 171
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
0
votes
1
answer
2k
views
Login only via Ubuntu Wayland possible and User is missing in Login List, Ubuntu 20.04
After update from Ubuntu 18.04 to 20.04, all works fine. My notebook has two users there have access to the client with a separate user profile.
After Unsubscribe from my profile, is it impossible to ...
- 325
2
votes
1
answer
2k
views
Ubuntu 20.04 always forces me to create a new user at boot
I have newly installed Ubuntu 20.04, customized GDM3, installed my needed software and everything appeared to be successful. However, when I reboot, Ubuntu asks me to create a new user for some ...
- 79
0
votes
1
answer
698
views
Gnome login screen only displays on LED TV
I have an issue were when I boot up or logout the default gnome login screen will only display on my LED TV (which is normally off) connected to my graphics card. How do i ensure that the login screen ...
- 11
0
votes
1
answer
3k
views
gnome-shell freezing (and gdm restarting)
I have a problem with gnome-shell and gdm. My shell sometimes (not reproducible atm) freezes. Under some circumstances gdm will be restarted and I am logged out and all programs are killed. When ...
- 169
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 ...
- 191
3
votes
2
answers
2k
views
GDM cannot show user after upgrade to 20.04
I just upgraded from 18.04 to 20.04 on my workstation. It uses LDAP authentication. I already have an authenticated user. It used to be shown in GDM prior the upgrade. However after the upgrade only ...
- 101
2
votes
0
answers
5k
views
After system boot, many processes belonging to `gdm` user are created
My Ubuntu 20.04.1 notebook is a fully up-to-date Ubuntu desktop installation upgraded from previous versions (18.10 -> 19.04 -> 19.10 -> 20.04). Lately, I noticed that a "system user&...
- 11.3k
1
vote
0
answers
498
views
Ubuntu login screen customization - show an animation when correct credentials are entered
I know we can customize the Ubuntu 20.04 login background, however I want to develop something slightly different.
I would like, when the user enters a correct login and credential and then click the ...
- 23
1
vote
1
answer
4k
views
Change Ubuntu 20.04 login theme
I want to use Materia theme as my login screen (gdm) theme. I used loginized app for changing the theme, I used it on arch and it worked well. But it is not working for ubuntu 20.04.
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
3
votes
1
answer
229
views
Mysterious image on first boot lock screen
I'm using Ubuntu 20.04 and noticed a weird behavior. When I select a wallpaper image, it is selected for both lock screen and background wallpaper, but on every first boot I see a mysterious image. I ...
- 31
4
votes
4
answers
21k
views
gdm3 not starting on ubuntu 20.04
I recently upgraded from Ubuntu 18.04 to 20.04 as I was having this issue as well (with a different error). I was hoping upgrading would fix it. After upgrading Ubuntu worked a few times but now it ...
- 41