Ubuntu 18.04 freezes


Answer: 1

10 hours ago

Recently I upgraded my laptop from Ubuntu 16.04 LTS to 18.04 LTS. Everything is working perfectly fine but my computer freezes while doing something, dealing with virtual machines to be more specific. The mouse cursor moves but nothing on desktop responds. If I press Ctrl+Alt+F1, it locks the system and once I unlock the system again, everything remains frozen as it was.

I would provide any information if necessary. Also, I didn't had such issue in Ubuntu 16.04.

Added by: Neil Gorczany

Answer: 2

12 hours ago

Virtualbox recently had a few problems with newer kernels. It might be worth trying to use the latest version directly from virtualbox.org.

To do so, please uninstall the Ubuntu version of Virtualbox, e.g. using apt:

$ sudo apt remove virtualbox

Then, download the package file from virtualbox.org and install it using a package manager of your choice, e.g. using dpkg:

$ sudo dpkg -i virtualbox-5.2_5.2.12-122591~Ubuntu~bionic_amd64.deb

Make sure all necessary dependencies are installed:

$ sudo apt-get install -f

Reboot and try running your VM again.

Added by: Bertrand Marvin

Answer: 3

26 hours ago

The only way around that would be to reboot and log in via tty. From there, see if Apport is installed. You could try the following:

"sudo apt list --installed | grep apport".

If it isn't, try the line below and follow the prompts

"sudo apt install apport"

If it was already installed, change directories to /var/crash, and take a look at the files(if any exist.) If any, they were automatically generated by Apport when something weird happened.

If a report from Apport doesn't exist for what your experiencing, it may not be a crash, but a shortfall coming from something else.

By default Apport is disabled, so it would be good idea to add a hashtag "#" to line 23 of crashdb.conf, located in /etc/apport.

Added by: Lucienne Senger

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