Public bug reported: I have a laptop Dell Latitude 5480 Ubuntu 20.04 LTS is in here. The main problem is that laptop does not go to the sleep when I'm closing lid. I dig into the problem slightly and figured out that actually state of lid is always open even if it is closed. I checked state of lid in a following way:
cat /proc/acpi/button/lid/LID0/state with a following results: state: open Is there a way how I can debug further? ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-oem-20.04 5.6.0.1028.24 ProcVersionSignature: Ubuntu 5.6.0-1028.28-oem 5.6.19 Uname: Linux 5.6.0-1028-oem x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27.9 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: KDE Date: Thu Sep 17 21:01:24 2020 InstallationDate: Installed on 2020-09-09 (7 days ago) InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) SourcePackage: linux-meta-oem-5.6 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: linux-meta-oem-5.6 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal package-from-proposed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1896105 Title: Kernel does not report lid state change; it stays open all the time To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-meta-oem-5.6/+bug/1896105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs