Public bug reported: After recently replaced broken screen, keyboard and touchpad became irresponsive - but only after booting. Booting with old kernel (e.g. 5.4.0-42) restored full control. Also, disabling acpi restored control (but one wants to see battery level...). Evidently, it is not hardwear problem.
A similar bug from previous distro: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1894125 This issue, including my troubleshooting, is otherwise documented here: https://askubuntu.com/questions/1345402/is-there-a-proper-solution-to-keyboard-and-mouse-not-working-after-boot-proble ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.8.0-55-generic 5.8.0-55.62~20.04.1 ProcVersionSignature: Ubuntu 5.8.0-55.62~20.04.1-generic 5.8.18 Uname: Linux 5.8.0-55-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.18 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Sun Jun 13 13:15:43 2021 InstallationDate: Installed on 2021-06-07 (5 days ago) InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1) SourcePackage: linux-signed-hwe-5.8 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: linux-signed-hwe-5.8 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1931787 Title: Keyboard and touchpad absent after booting, but not before To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.8/+bug/1931787/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs