09-11-2017, 05:54 PM
Thanks very much for that. I would never have found that out for myself and it is very much appreciated 
I can confirm that the workaround
sudo systemctl mask systemd-backlight@leds\:dell\:\:kbd_backlight.service
stops the hang at boot on netbooks that have no backlight.
I think it would be a good idea for such machines to run that command on the very first run, before ever re-booing (after updating for example)
If that were done it would avoid the complications above.
I can confirm that the workaround
sudo systemctl mask systemd-backlight@leds\:dell\:\:kbd_backlight.service
stops the hang at boot on netbooks that have no backlight.
I think it would be a good idea for such machines to run that command on the very first run, before ever re-booing (after updating for example)
If that were done it would avoid the complications above.