A purely speculative assumption: For some reason, Logitech hardware can immediately go into autosuspend mode.
To prevent this, you can add the following kernel command line parameter: usbcore.autosuspend=-1 In addition, you should execute the following commands: tee --append /etc/modprobe.d/usbcore.conf << EOF options usbcore autosuspend=-1 EOF update-initramfs -u -k all Note: It depends on the kernel from where the configuration is read, so it is best to add both the parameter and the config file. It may also be helpful to use a different USB port. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1621367 Title: 4.4.0-36: keyboard dead at boot & full disk encryption prompt for password To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1621367/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
