A very similar bug has started affecting me since I upgraded to Ubuntu 20.04.
On my laptop (Dell XPS 15 9560) I am unable to decrypt my harddrive because the keyboard is unresponsive so I can't enter the password. I have found a workaround for that issue, which is to boot in recovery mode (the keyboard works in the grub menu), then drop to a root shell and run `reboot`. Upon reboot the keyboard works and lets me decrypt the drive and log in. It does not work to enter the grub menu and choose normal boot, nor does it work if I do a hard reboot after booting in recovery mode. During a Gnome session the keyboard and touchpad will occasionally become unresponsive as well. The workaround here is to press the power button - this brings up the logout dialog, which causes the touchpad and keyboard to work again. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1822394 Title: [Dell BIOSes dated 27 Mar 2019, XPS 9575, Precision 5530 2-in-1] laptop keyboard & touchpad not working at gdm screen after boot Status in libinput package in Ubuntu: Confirmed Status in linux package in Ubuntu: Confirmed Bug description: On a dell XPS 15 2-in-1 with the latest 1.4.0 bios, my touchpad and keyboard are unresponsive at the gdm login screen. Keyboard works to unlock encrypted harddrive before that though. If I plug in a USB keyboard or activate my bluetooth mouse, I can use those to log in, and then after logging in the laptop touchpad and keyboard work again. Logging out of the desktop results in the laptop touchpad and keyboard working on the gdm screen. Did not see this behavior before upgrading from 1.2.0 bios to 1.4.0 bios, but also had not rebooted in a while, so not sure if bios or package upgrades triggered this behavior. ProblemType: Bug DistroRelease: Ubuntu 19.04 Package: gdm3 3.32.0-1ubuntu1 ProcVersionSignature: Ubuntu 5.0.0-8.9-generic 5.0.1 Uname: Linux 5.0.0-8-generic x86_64 ApportVersion: 2.20.10-0ubuntu23 Architecture: amd64 CurrentDesktop: GNOME Date: Fri Mar 29 17:51:00 2019 InstallationDate: Installed on 2018-09-26 (184 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) SourcePackage: gdm3 UpgradeStatus: Upgraded to disco on 2019-03-11 (18 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libinput/+bug/1822394/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
