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1

As suggested this is my comment as the answer. I've found a workaround: running lightdm-gtk-greeter-settings gives you the opportunity to remove the Power Menu entirely.


0

I had the same problem, changed to HDMI and it worked, check this thread if you can get some more info 14-04-lts-unknown-display-1024x768-only


0

Boot to your damaged Mate 14.04, connect it using network cable. When you reach low graphic message, switch to virtual console tty1 using Ctrl+Alt+F1. Login then run ifconfig check you network interface name. ~$ ifconfig eth0 Link encap:Ethernet HWaddr f2:11:df:ff:59:0c UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 ...


1

You can edit the configuration file directly, but you may have to install lightdm-gtk-greeter (if not already installed). Go to the terminal and type: sudo apt-get install lightdm-gtk-greeter Then edit the configuration file: sudo nano /etc/lightdm/lightdm-gtk-greeter.conf or if you prefer to use a GUI text editor, sudo -i kate /etc/lightdm/lightdm-...


0

Inspired by http://askubuntu.com/a/504402/458355 I created /etc/lightdm/lightdm.conf with the following content: [SeatDefaults] user-session=plasma-kde Now login works. For the record: The file ~/.dmrc containes the line Session=kde-plasma-kf5 However, changing this line to Session=plasma was ignored by lightdm.


2

Startx doesn't start a DM(desktop manager) like unity or LXDE by default. This is just a partial solution , but when you get to the screen with an ubuntu backgrounnd , right click and select open terminal. Then , in the open terminal type unity A unity desktop would appear. The only problem is that original terminal window must be kept open or unity ...


0

This was most likely caused by the contents of my ~/.profile file, which defined the relevant environment variables. If this shouldn't help you, then this increasingly nuclear command should? sudo bash -c " grep -ial $HTTP_PROXY ~/.* || grep -rial $HTTP_PROXY ~/.* || grep -rial $HTTP_PROXY ~ || grep -rial $...


2

Place pre-warmed cardboard boxes near the keyboard. The cat will default to sitting in these and will leave your computer alone.


0

Excessive keyboard input is known to hang the LightDm screen. There is currently no way to prevent the problem from happening, however you can easily remove the characters from the login box by pressing Shift+Home (to select all) then Backspace (to delete). It may take a few seconds before the machine becomes responsive again. Note that the issue has been ...


1

I think the problem is in the permissions= line in the configuration files in /etc/NetworkManager/system-connections/* after the change I describe below, all went to work as before. I have four computers with Ubuntu 16.04, two have been updated from 15.10 to 16.04 and two were installed from scratch. On machines that have been updated, you can select an ...


17

Switch to virtual console x (x ≥ 8) (CtrlAltFx, say x = 12). Those don't have getty or LightDM (or anything, really) running on them, so the cat can walk over the keyboard to its heart's content. Then press CtrlAltF7 to get back to LightDM and the login screen. You could automate this during boot by adding chvt 12 to /etc/rc.local (see this U&L post). ...


5

Some related bug reports on Launchpad: Cat causes login screen to hang Cat sitting on keyboard crashes lightdm (duplicate of first one) Those bugs describe that lightdm (the package behind your login screen) experiences some kind of keyboard input buffer overflow if you keep on hitting keys on the lock or login screen. The primary bug report mentions ...


8

You can to the same by pressing Ctrl+Alt+L This will lock the screen and require the password to unlock it.


0

I had the same problem some time ago, for me it helped to login via a terminal and execute $ sudo chown ~/.Xauthority See also the answer this question on AskUbuntu: The .Xauthority (not .xAuthority) file can be found in each user home directory and is used to store credentials in cookies used by xauth for authentication of X sessions. [...] ...


1

Since you don't know exactly where the problem is, create a folder at your desktop (or documents) and move there all hidden files and folders from your home folder (every single one to be sure, even the ~/.local folder) and then reboot (those which are need will be recreated on reboot with default configurations, so if you need for example the chromium ...


1

Ubuntu GNOME uses GDM as its default display manager. This can be verified by looking at the dependencies for the ubuntu-gnome-desktop package, which include gdm3 but not lightdm. http://packages.ubuntu.com/xenial/ubuntu-gnome-desktop


0

Go to google images Type the name of your favorite image ---> click search ---> click search tools ---> click size ---> click exact size In the new window that opens type the exact size of your monitor ---> Click go In the search result that appears download your favorite one By default it gets saved to Pictures folder Open terminal and type sudo ...


0

I have fixed my login problem. It turns out that I had done a very Stupid Thing which was messing with the PATH variable without knowing what I was doing. First, I booted the install media and chrooted to my ubuntu install (using the directions here: https://help.ubuntu.com/community/LiveCdRecovery#Update_Failure). I checked that .Xauthority had the correct ...


0

If you are using Ubuntu on VMWare Workstation, you need to install VMWare tools to get proper resolution. Here is the step by step procedure to do that : Start your Virtual machine and login to your Ubuntu. Go to VM --> Install VMWare Tools... Click on install Now you should see a Virtual CD named "VMWare tools" mounted in your Ubuntu. Copy the ...


0

Run: apt purge nvidia-3* apt install nvidia-352 update-initramfs -u


0

I'm going to answer the question about the Bluetooth functionality that you put in the title. I don't understand how the remainder of your question about WiFi relates to that. You can use BlueProximity to lock and unlock you desktop when a certain paired Bluetooth device is in range. Here is an article about BlueProximity on the Ubuntu forums from 2008.


1

I found the solution. On a Dell Precision 3620, you have to go into the BIOS and disable Secure Boot. After that, you are able to use the nVidia drivers.


0

assuming you have done a "fresh install" of xubuntu 16.04 and not knowing the model of the machine and neither the video card i would do: sudo apt-get remove --purge nvidia* && sudo apt-get install nvidia-settings. Then running nvidia-settings i would figure out what my needs are and make the settings permanent.


0

Nobody properly explained the fact that there's a button on the login screen I can press to change desktop environments to access the lubuntu desktop environment I previously installed. xfce/xubuntu and lxde/lubuntu work, cinnamon unfortunately does not. Unity being the awful mess it is doesn't and is why I went through this all.


0

Could it be you didn't use *.conf as the extension on your file? As per your reference: /usr/share/lightdm/lightdm.conf.d/*.conf /etc/lightdm/lightdm.conf.d/*.conf /etc/lightdm/lightdm.conf


4

You most likely have hit this bug: https://bugs.launchpad.net/ubuntu-gnome/+bug/1559576 which renders Nvidia prime cards currently unusable. You can maybe try some workarounds provided in the comments, but these might not work. However please do share your findings!



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