There is symptom that if you wait for 30 seconds, input devices will start to work again, without flipping hinge. Also closing lid to sleep laptop and wake it again will work also. System engineer from Dell reported that default kenrel 4.15 will not have this problem, every other higher version will have it, including latest main stream version.
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to libinput in Ubuntu. https://bugs.launchpad.net/bugs/1822394 Title: [Dell BIOSes dated 27 Mar 2019] laptop keyboard & touchpad not working at gdm screen after boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libinput/+bug/1822394/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
