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Since upgrading to LTS 20.04 I noticed that the keyboard does not work in the desktop. Except for on the desktop, the keyboard is working perfectly.

For example, I cannot open a file by clicking it (with the mouse) and hitting Enter. I'm using a Dell XPS 15.

Zanna
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2 Answers2

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I had just the same problem with keyboard and mouse not working I can changed the grub file

  1. Open terminal by pressing E while booting Ubuntu

  2. Change the below command in grub file.

    GRUB_CMDLINE_LINUX_DEFAULT="acpi=noirq text nomodeset"
    

In case only mouse is working you can login to Ubuntu using Accessibility icon and switch on the screen keyboard.

muru
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KARTI
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My current workaround is to hold shift on boot, select something like 'advanced options' from the menu using my arrow keys (which work at this point), and then select an older kernel. Sub optimal but it works for now.