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22 votes
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How do I change login background in elementary OS Freya or Loki?

You can change it by editing the file sudo -i scratch-text-editor /etc/lightdm/pantheon-greeter.conf There you will find the line default-wallpaper=/usr/share/backgrounds/elementaryos-default ...
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  • 368
20 votes
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Why is there a delay when I enter my password incorrectly?

This is a security feature according to an explanation from another Stack Exchange community. Here are the two vulnerabilities solved by that feature: this (sic) throttles login attempts, meaning ...
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20 votes
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Can the elementary clock display seconds?

Yes, you can use Dconf-editor or Configurator and go to com.canonical.indicator.datetime and enable show-seconds Or just paste this in your terminal: gsettings set com.canonical.indicator.datetime ...
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15 votes
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How can I disable the guest account?

A more convenient way to disable the guest login is: Open System Settings and navigate to User Accounts. Then select Guest Session and unlock the settings by authenticating with your user password: ...
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  • 4,516
13 votes

How do I change login background in elementary OS Freya or Loki?

Just copy your wallpaper to /usr/share/backgrounds (you're going to need root privileges to do so) and then select your wallpaper from System Settings -Desktop - Wallpaper. That should also change ...
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  • 3,216
12 votes
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Install Nvidia dual-graphics driver on Loki?

I don't have dual graphics, but I do have a Haswell based machine with a GTX 960. I installed the release version of Loki and had slow, stuttering Nouveau graphics even though I had selected to ...
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  • 136
11 votes
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How to revert to the old login screen

Unfortunately, there is no way to get the old screen. Both screenshots show pantheon-greeter but in different versions - and it's not possible to install older versions on Freya. It's sad you'd ...
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  • 2,872
11 votes
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How can I remove the password prompt from the lock screen?

You can deactivate the password query in System Settings -> Security & Privacy -> Locking:
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  • 4,516
8 votes
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Prevent screen locking while watching videos

lightsOn There is a litte bash script called lightsOn on GitHub, which automatically checks on various apps, including fullscreen Flash and html5 video. (It works for me.) Bash script managing ...
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  • 3,510
7 votes

Can't login after upgrade

I don't have a crystal ball, but I suppose to look for .Xauthority in your home folder, there might be a permission problem: Press CTRL+ALT+F1 (but if you on mackbook do CTRL+FN+F1) to get to a ...
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  • 1,537
7 votes
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Login slow even though booting is fast

There is already a bug report for this problem, see Bug #1596377. As suggested in the comments, the following workaround seems to fix the problem for some users: sudo mv /etc/xdg/autostart/at-spi-...
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  • 88
6 votes
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How to change the language of the date-time in the login page?

This should work but it's more of a workaround than solution and I haven't personally tested it. Try changing your language to English in Settings and then use button "Apply to login screen, guest ...
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6 votes

Can the elementary clock display seconds?

For elementary OS Juno, gsettings set io.elementary.desktop.wingpanel.datetime clock-show-seconds true
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  • 61
6 votes
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How can I launch Openbox when I log in?

To do this in a clean way, you will have to create a custom GNOME session file and a X Server session file (first, install openbox via sudo apt-get install openbox obconf menu of course). Let's take a ...
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  • 2,872
6 votes
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Once locked, screen stays black and cannot be unlocked

Run sudo -i scratch-text-editor /etc/default/acpi-support Find and change POST_VIDEO=true to POST_VIDEO=false Find and change SAVE_VBE_STATE=true to SAVE_VBE_STATE=false Restart your laptop, issue ...
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5 votes
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Flickering when I log in even though I have the same wallpaper before and after logging in

I suspect it is because login screen (greeter) and the desktop environment are a bit different entities. Lightdm starts the greeter, but desktop is handled by another entity, pantheon. They use same ...
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  • 862
5 votes

Pantheon-greeter login screen has incorrect resolution on external monitor

xrandr allows us to reconfigure the X server without restarting it. Let's use it to set the correct resolution at startup. Find out how the monitors are identified on your system. At the terminal, ...
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  • 379
5 votes

Delay during login after entering correct password in Loki

OK after some digging around, the output of journalctl command showed the following when the delay occurred at the time of login finally happening after 90 seconds: Oct 11 20:50:18 skybird gnome-...
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4 votes

Prevent screen locking while watching videos

Try to use Caffeine. A status bar application able to temporarily prevent the activation of both the screensaver and the "sleep" powersaving mode. Install: sudo add-apt-repository ppa:caffeine-...
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  • 4,565
4 votes
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Why won't LightDM start properly after installing OSSEC?

Link default.desktop to pantheon-greeter.desktop: cd /usr/share/xgreeters sudo ln -s pantheon-greeter.desktop default.desktop
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4 votes
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Cannot change lockscreen Calender widget's language

GUI method , does not always work Go to Settings > Language and Region. You will see something like Then click the unblock button and enter your password. In formats select your correct region and ...
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  • 2,733
4 votes
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Change the default time of inactivity required to lock screen

Open system settings > power There you can find everything about turning off the screen, adjusting sleep mode, ect.
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  • 394
4 votes

Pantheon DE missing from lightdm after ubuntu update

I've found that with an update of an elementaryos component, they updated a dependency version of the package libmutter-2-0, version 3.28.4-0ubuntu18.04.1+elementary4~ubuntu5.0.1, which is not from ...
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3 votes

Why is there a delay when I enter my password incorrectly?

Short answer: To reduce the rate of login attempt To prevent quick brute forcing of passwords. This makes it take longer to guess passwords. Greatly increase security Comprehensive: It's actually ...
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  • 7,877
3 votes

How to revert to the old login screen

You would have to download the code to the old greeter and compile it yourself, though I cannot guarantee that it would actually work. Perhaps, if you are proficient enough with coding, you can fork ...
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  • 1,918
3 votes

Can the elementary clock display seconds?

When I use that command it says: No such schema "com.canonical.indicator.datetime" Edit: the correct setting is: (under dconf Editor) io.elementary.desktop.wingpanel.datetime -> clock-show-...
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  • 31
3 votes

How do I change login background in elementary OS Freya or Loki?

Copy your wallpaper in /usr/share/backgrounds then : cd /usr/share/backgrounds Just remove the symlink and add another one. sudo rm elementaryos-default sudo ln -s yourWallpaper.jpg elementaryos-...
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