Questions about the login screen, specifically customizing/troubleshooting it.

learn more… | top users | synonyms

2
votes
0answers
14 views

Udev rules for USB mounting and Low Graphics Mode error

I have a file containing the content bellow KERNEL!="sd[a-z][0-9]", GOTO="media_by_label_auto_mount_end" # Import FS infos IMPORT{program}="/sbin/blkid -o udev -p %N" # Get a label if present, ...
0
votes
0answers
46 views

One time loop on re-login after locking ubuntu 14.04?

After I lock my computer (Ubuntu 14.04) when I go to re-login and enter my password I get a loop back to the login screen. After I enter my password a second time I'm re-logged back into my desktop. ...
2
votes
5answers
6k views

Ubuntu 12.04LTS stuck at login mouse and keyboard not responding

I have Ubuntu 12.04LTS installed on a dual-booted machine (i5 dual core 8G ram) and it's been working fine, but today for some reason when I logged out and tried to log back in it is stuck at the ...
0
votes
1answer
10 views

All flavor of Ubuntu 15.04 goes to sleep on login screen?

After boot and the login screen is showing up, my laptop immediately goes into sleep even when I'm typing my password. I have used Ubuntu since 2010 on this machine, this is the first version that ...
0
votes
1answer
20 views

Another password prompt when waking from suspend

After upgrade to ubuntu 15.04, I have to enter password for twice to unlock my system when it wakes up from suspend. The first password prompt looks weird, I've never seen it before and have no idea ...
0
votes
0answers
13 views

Login screen does not fill monitor

For some reason, my login screen does not fill up my entire monitor. After I enter my password, the screen goes all glitchy and weird for a few seconds, then it logs me in and everything is normal. ...
0
votes
1answer
13 views

14.04 USBs powered off at login screen

I'm using Ubuntu 14.04 LTS with a Dell normal desktop PC. I've been suffering this issue from the very beggining. Randomly, the USBs ports seem disconnected/powered off at the login screen, before ...
0
votes
1answer
14 views

Are there still issues with re-logging after desktop lock in Ubuntu 15.04?

Following my previous question in the subject and since no solution has been found: I was wondering if there are any users of Ubuntu 15.04 which are experiencing this issue?
0
votes
3answers
28 views

My linux won't let me get in as user or even as a guest in login screen

I opened my computer and it was good and all , but then when my desktop was supposed to appear , there was some kind of log in window that has 2 options, to log in as my user name or as a guest. The ...
59
votes
16answers
36k views

How do I disable the drum beat sound on the login screen?

I would have expected System ▸ Administration ▸ Login Screen ▸ Play login sound to control this, but unchecking it does not prevent the drum beat sound from playing.
0
votes
0answers
78 views

Ubuntu 14.10 Login Background Error

I wanted to try and change the background of the system at the login screen, so I searched the web for where it was. I found that it was a file called warty-final-ubuntu.png. I replaced it with a .png ...
0
votes
0answers
32 views

infinite loop at login screen on Ubuntu 14.04.2

My laptop always opens without requiring password, but login screen came out when i was trying to open my laptop. My password was 100% sure true, but i could not login, first black screen appeared and ...
99
votes
23answers
139k views

Ubuntu gets stuck in a login loop

My problem: As you can guess my Ubuntu is stuck in a login loop when trying to enter my desktop. When I login, the screen gets black and soon after that the login screen comes back. I'm a Ubuntu ...
0
votes
1answer
40 views

Ubuntu not accepting correct password

Sir, I am entering the correct password in Ubuntu, but the screen just blinks and again shows me the same login screen. Guest session works properly. What should I do?
0
votes
1answer
34 views

How can I change the date format in the Lubuntu login screen?

I'd like to set a different format for the long date string I get at the top of the login screen in Lubuntu (15.04). How do I do that?
0
votes
0answers
95 views

Ubuntu Studio Upgrade to 15.04 Degrades Login Screen Format

I upgraded Ubuntu Studio to 15.04 from 14.10 this week. At login (the greeter?) the screen[1] is uniformly grey. There is no login dialog. Before the upgrade, the dialog appeared on the login screen. ...
0
votes
1answer
27 views

Cannot login from lock screen

On a new 14.04 setup I am having an issue where I cannot login from the lock screen. When my screen locks, the only way I can login is by selecting to login as a different user, which takes me back ...
0
votes
1answer
38 views

Why does the screen go dead until I press escape every time I boot up?

I have Ubuntu Studio 14.04, it is the only operating system on my machine. Every time I boot up, the BIOS loads, and then the screen goes dead and will stay that way unless I press ESC, in which case ...
2
votes
2answers
76 views

Can't get rid of Lubuntu's Login Greeter

If I lock my computer or logout, when I log back in, I want to see unity-greeter. But I can't seem to get rid of Lubuntu's greeter upon logging in. I once installed Lubuntu but have since uninstalled ...
-2
votes
0answers
25 views

Failed to start session login [on hold]

Hey guys :D I restart my ubuntu 14.04 after some updating of the software after that I logged in but then it is failed to start the session which means I can't log in. how can I fix this error? help ...
1
vote
1answer
51 views

How can we set custom image as background for desktop and login screen [duplicate]

If we select default wallpapers in Ubuntu as desktop background image it will automatically set the same image as login screen. But if we use a custom image as a wallpaper it will only change the ...
3
votes
3answers
3k views

How do I set the login manager to enable `change languages` at login?

How can I recompile the source to force the option to allow changing languages and keyboard layouts at login?
11
votes
4answers
2k views

How do I go back to KDE splash / login after installing XFCE?

I started with Ubuntu Karmic, and wanted to try KDE. So I installed kubuntu-desktop. Then I wanted to see how XFCE progressed, so I installed xfce4. I now have Kubuntu with an XFCE splash and login. ...
0
votes
2answers
98 views

Ubuntu 14.04 Returns to Login Screen After Login

When I type in my password to my newly installed Ubuntu 14.04 computer, it returns me to the login screen. I've seen other answers but those were to Ubuntu 13.04 and older and didn't work.
147
votes
38answers
432k views

How to fix “The system is running in low-graphics mode” error?

Note: This is an attempt to create a canonical question that covers all instances of "low-graphics mode" error that occurs to a user, including but not limited to installation of wrong ...
0
votes
1answer
67 views

I can't see my desktop only the terminal

I'm completely new to this, I put in the cd and I get this terminal thing when I turn on my computer it asks for login and password I enter that, and then all it says is: tommy@tommy:~$
2
votes
1answer
63 views

How to edit (CSS) LightDM GTK+ Greeter

Is there a manual or does anyone know how to edit the (CSS) files for the LightDM GTK+ Greeter? I'm already using LightDM Greeter Settings, but I want more customization. Somehow the webkit greeter ...
0
votes
2answers
31 views

/usr/bin no longer in path after booting into windows 7

I have a dual booted windows 7 / ubuntu 14.04 computer. Everything in ubuntu worked fine until I booted into windows and then switched back to ubuntu. Now when I try to login it keeps sending me ...
1
vote
6answers
4k views

Login loop 14.04 but guest account is accessible

After upgrading to 14.04 from 13.10 which worked fine, I cannot get past login as it just loops back. Guest account works fine. I can login to the console by hitting Ctrl+Alt+F1 using username and ...
0
votes
0answers
36 views

Ubuntu 14.04 LTS Gnome cant load desktop

I have problem with ubuntu 14.04 LTS. On Ubuntu I have installed gnome and lubuntu desktop and I´m using gnome. Yesterday I have installed security update and virtualbox update. When I run ubuntu ...
8
votes
9answers
18k views

Desktop login fails, terminal works

I have a freshly setup 12.04 LTS pc system (120 GB SSD, 1 TB HDD, 16 GiB RAM); since a few days, I can't login to the graphical desktop anymore: there is very short flashing shell window which ...
0
votes
0answers
41 views

I can't login to Ubuntu on Virtualbox

When I enter my password and press enter, it processes for a while and then loops me right back to the account login screen again. I'm using Ubuntu 14.04. I've tried using the advice on this thread ...
1
vote
0answers
26 views

How can I remove a specific user from the Ubuntu login screen? [duplicate]

I am using Ubuntu 14.04LTS. When I login, there is an extra user called 'Oracle' present. How can I hide this?
1
vote
0answers
25 views

Ubuntu 14.04 stuck in login loop [duplicate]

I installed the cuda toolkit 7 and right after I restarted I was stuck in a login loop. I tried all the suggestions I could find which includes deleting the .Xauthority file, .profile, reconfiguring ...
1
vote
0answers
53 views

Can't login into Ubuntu VM

I've installed Ubuntu 14.04 32 bits into VirtualBox on a Windows 8.1 32 bits, but when I try to login, it just sits there for a while thinking, a black screen pops and it goes back to the users, it ...
0
votes
1answer
40 views

No sound after login in 14.04

I have clean install of Ubuntu 14.04. I had some kind of freeze yesterday and after I rebooted the laptop I have no sound in system. But I do have sound on login screen - I hear the "banging" sound. ...
0
votes
1answer
46 views

Ubuntu automatically logs on to guest account [closed]

I installed Zorin 9 using a USB on my Dell Inspiron 1440 laptop After the installation completed and I rebooted the system, Grub doesn't show up on my external screen, waited for 20 secs, pressed F1 ...
8
votes
2answers
86 views

How do I add or manipulate Application/System Indicators in the login screen?

I would like to remove several of the Indicators that usually appear in the upper-right-hand side of the login screen. In particular, I would like to remove the accessibility, keyboard layout, power, ...
0
votes
4answers
871 views

ubuntu 14.04 login loop problem

My Ubuntu 14.04 is stuck, when trying to login my desktop. Means the screen gets black and soon after that the login screen comes back. I followed all steps in Ubuntu gets stuck in a Login Loop Even ...
0
votes
0answers
87 views

Ubuntu 14.04 Blank screen at login. Nvidia

Ubuntu 14.04 Blank screen at login. Nvidia Geforce 820M, has intel too. HP laptop Can hear the login sound. When I close the lid and open it again, it shows the login after coming back from standby. ...
1
vote
3answers
78 views

How to hide administrator account or root in Login screen? [duplicate]

I used Ubuntu 12.04 and I want to only user account appear on the Login screen without guest and administrator account. My administrator account cannot view to everybody when their Login. ...
2
votes
0answers
30 views

Unable to login from User account or Guest account (not a duplicate question)

I have Dell 3521 laptop without dedicated video card. It came with Ubuntu 12.04 installed. One fine day, it prompted me for an upgrade, which i went for. During upgrade, its battery finished and once ...
3
votes
0answers
34 views

Cannot login after routine update

I went through a regular daily update a couple of weeks ago, and since then I have been unable to log in to my ubuntu account or the guest account. I have tried the solutions suggested in these ...
2
votes
1answer
177 views

Login password problem

I am using kubuntu 12.10. My problem is when my kubuntu starts, in login screen it shows my name & a field for giving password (previously what i have choose for my account). But if at this ...
0
votes
1answer
373 views

LightDM and GDM login loop. Ubuntu 15.04 Gnome 3

At first the GDM worked just fine but all of a sudden I lost the ability to login. I can still get to my desktop using startx (sound doesn't seem to work when I do that but it might be a by-product of ...
0
votes
0answers
58 views

No login prompt to GUI after motherboard upgrade

After changing motherboard in my Ubuntu 15.04 computer I ran into problem with logging in GUI. For an instant moment I see a standard login window. Immediately thereafter the following window shows. ...
1
vote
1answer
1k views

Black Login Screen Ubuntu 15.04

After updating from 14.10 to 15.04, the login screen is black. Just by changing the mouse pointer do I find the password text field; password typed in and then all works normal. Any ideas?
0
votes
0answers
50 views

ubuntu 15 login or lock not working

when I select lock, the screen goes black. If i restart, the log in screen appears but does not allow me to type a password, it just logs in automatically even though the lock setting is on. Lock was ...
1
vote
3answers
39 views

Why do I have all the sudden a user called “postgres” on my login screen?

It appeared just like that, a quick searched suggested that it's a user created by a database application but why is it on my login screen?
2
votes
0answers
38 views

System Logs out when unused for some time instead of going into lock screen

I have switched to XFCE4 some days back from Unity, but now i again switched to Unity. From that time onwards I am facing following problem. My system logs out automatically when unused for some ...