How do I change the keyboard layout from the default (US English keyboard)?¶
In the top right corner of your desktop, click on the down arrow to show the settings menu, and then click on the bottom-right icon showing a wrench and a screwdriver. This will open the Ubuntu “Settings” panel.
On the left list, select “Region & Language”
On the right, under “Input Sources”, click on the “+” button.
Click on the three vertical dots to see more choices for the keyboard layout.
Start typing your language or layout name (e.g. “Spanish”, “French”, …)
If the keyboard layout still does not show up, click on “Other”. Now you should see a full list of layouts that match what you wrote.
Select the layout you want (often there are various variants depending on how you want to manage special symbols, accented letters, etc.). Then click on the green button “Add” that will appear at the top-right of the “Add an Input Source” window.
Now you can choose the layout via the small menu on the top right of your desktop (it should show ‘en’ currently, for the default English US layout). If you prefer, you can remove any other input source from the list and only keep the one you want to use.
How do I install a recent version of VirtualBox on Ubuntu?¶
Download corresponding .deb file from VirtualBox and do
sudo dpkg -i <deb-file>.
VirtualBox might fail to start on Secure Boot-enabled Linux system, you can either 1) disable Secure Boot, please consult the user manual of the hardware manufacturer for the specific configuration in the BIOS/UEFI, or 2) sign the VirtualBox kernel extensions, note you might need to re-sign the kernel module for each kernel update.
Icons and text are small on high-resolution screens. How do I enlarge them?¶
Increase the scale factor in Machine => Settings => Display => Scale Factor
How to enable Audio?¶
Stop the VM
Go to Machine => Settings => Audio
Tick “Enable Audio” and select your desired Audio driver.
Start the VM.
How do I manage VirtualBox from the command line (e.g. when running Quantum Mobile on a remote computer)?¶
VBoxManage startvm "Quantum Mobile 20.03.1" --type headless
ssh -p 2222 firstname.lastname@example.org
Note: 2222 is the standard port. Use
VBoxManage showvminfo "Quantum Mobile 20.03.1" | grep 'Rule'to check the port for your VM.
VBoxManage controlvm "Quantum Mobile 20.03.1" acpipowerbutton