I installed "virt-manager" 2.2.1 on my 20.04 desktop and created a VM in it. I find that many of the settings require clicking the "light bulb" on the toolbar - but mine doesn't have that!

virt-manager window screenshot

Did I miss installing a component I need?

  • And re. "I find that many of the settings require clicking the "light bulb" on the toolbar", is this some guide you're following? If so, do share the link.
    – DK Bose
    Jun 30, 2020 at 9:54
  • 1
    I am comparing it to the screenshots shown on virt-manager.org and several other how-to sites. Ex: virt-manager.org/wp-content/uploads/2014/01/details.png
    – DavidF
    Jun 30, 2020 at 9:57

1 Answer 1


The light bulb button (or the "Show hardware information" button) can be found is the virtual machine console's toolbar. You first need to open the console by double clicking on the virtual machine or by using the "Open" button.

If you use a custom GTK theme you may have an issue and the light bulb will be invisible but the button will still be working.

Here are some screenshots to illustrate. The first one displays the main window and the second one the console window with the light bulb button:

main window enter image description here

  • Gaaah! The toolbar had been hidden. Thanks!!
    – DavidF
    Jun 30, 2020 at 9:58

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