** Description changed: - Booted the Dell 5520 with Xubuntu 18.04 Live USB boot disk. A full - battery shows about 12 hours remaining operating time. + Booted the Laptop: Dell Precision 5520 with Xubuntu 18.04 With a Live + USB boot disk. A full battery shows about 12 hours remaining operating + time. - Booting with updated Xubuntu 18.04 CPU clock seems to be fixed to - 2.32GHz, Battery life 4 hours. + Booting from internal HD with updated Xubuntu 18.04 to date, CPU clock + seems to be fixed to 2.32GHz, Battery life is 4 hours. 1. lsb_release -rd Description: Ubuntu 18.04.1 LTS Release: 18.04 2. - Package name for meeting low power mode is unknown to me. (part of the kernel) + Package name for meeting low power mode is unknown to me. (part of the kernel?) 3. When using the Dell precision 5520 in battery mode, I expect more then 10 hours battery life time. 4. - Instead the Battery is flat after 4 hours. + With the current updated Xubuntu 18.04 the Battery is flat after 4 hours. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: ubuntu-release-upgrader-core 1:18.04.25 ProcVersionSignature: Ubuntu 4.15.0-34.37-generic 4.15.18 Uname: Linux 4.15.0-34-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: XFCE Date: Tue Sep 25 10:11:24 2018 InstallationDate: Installed on 2018-07-16 (70 days ago) InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader Symptom: release-upgrade UpgradeStatus: No upgrade log present (probably fresh install) mtime.conffile..etc.update-manager.release-upgrades: 2018-07-16T14:01:08.890425
** Description changed: Booted the Laptop: Dell Precision 5520 with Xubuntu 18.04 With a Live USB boot disk. A full battery shows about 12 hours remaining operating time. - Booting from internal HD with updated Xubuntu 18.04 to date, CPU clock - seems to be fixed to 2.32GHz, Battery life is 4 hours. + Booting from internal HD with updated Xubuntu 18.04 to date, CPU clock seems to be fixed to 2.32GHz, Battery life is 4 hours. + I did not modify anything related to CPU scaling. + + This behaviour might have popped up with one of the updates. 1. lsb_release -rd Description: Ubuntu 18.04.1 LTS Release: 18.04 2. Package name for meeting low power mode is unknown to me. (part of the kernel?) 3. When using the Dell precision 5520 in battery mode, I expect more then 10 hours battery life time. 4. With the current updated Xubuntu 18.04 the Battery is flat after 4 hours. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: ubuntu-release-upgrader-core 1:18.04.25 ProcVersionSignature: Ubuntu 4.15.0-34.37-generic 4.15.18 Uname: Linux 4.15.0-34-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: XFCE Date: Tue Sep 25 10:11:24 2018 InstallationDate: Installed on 2018-07-16 (70 days ago) InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader Symptom: release-upgrade UpgradeStatus: No upgrade log present (probably fresh install) mtime.conffile..etc.update-manager.release-upgrades: 2018-07-16T14:01:08.890425 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1794254 Title: Dell Precision 5520 in Battery mode stopped Low Power modes. No CPU speed stepping. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1794254/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
