Public bug reported: The behavior is the same booting from USB to install the OS, and booting from NVMe on an installed OS. I'm using disk encryption, but I don't believe it plays a factor.
When I boot plugged in to power, the system behaves normally, even once battery is disconnected. I can put the system to sleep on battery, wake on battery, and everything is fine. The initial boot on battery just does not seem happy either way. I've tried both with and without TLP installed. This behavior was present on 18.04, but I assumed it was an "old kernel" issue as this is fairly new hardware. I was previously on Manjaro w/ kernel 5.4, and the system was fine, but using Focal Fossa on kernel 5.4 presents the boot issue. It appears to get through most of the boot process but I don't ever see the login screen, it sits hung at a black screen and a mouse. Overall the boot process itself feels very sluggish. Please let me know if there's more information I can provide - thank you! ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-21-generic 5.4.0-21.25 ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27 Uname: Linux 5.4.0-21-generic x86_64 ApportVersion: 2.20.11-0ubuntu26 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: lyndon 1871 F.... pulseaudio /dev/snd/controlC0: lyndon 1871 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Mon Apr 13 11:18:18 2020 InstallationDate: Installed on 2020-04-03 (10 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402) MachineType: Dell Inc. Inspiron 5585 ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-21-generic root=/dev/mapper/vgubuntu-root ro quiet splash RelatedPackageVersions: linux-restricted-modules-5.4.0-21-generic N/A linux-backports-modules-5.4.0-21-generic N/A linux-firmware 1.187 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/12/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 2.4.4 dmi.board.name: 0N999T dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 2.4.4 dmi.modalias: dmi:bvnDellInc.:bvr2.4.4:bd11/12/2019:svnDellInc.:pnInspiron5585:pvr2.4.4:rvnDellInc.:rn0N999T:rvrA00:cvnDellInc.:ct10:cvr2.4.4: dmi.product.family: Inspiron dmi.product.name: Inspiron 5585 dmi.product.sku: 092B dmi.product.version: 2.4.4 dmi.sys.vendor: Dell Inc. ** Affects: linux (Ubuntu) Importance: Undecided Status: Confirmed ** 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/1872510 Title: Slow / Broken Boot on Battery Power To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1872510/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs