Public bug reported: On Dell Latitude 5500 laptop, dual-boot Ubuntu/Windows, Ubuntu 20.04 64-bit, 5.4.0-33-generic, Ubuntu boot stops with blank screen when the laptop is unplugged, even in recovery mode.
After plugging in power after a failed boot, the following message is shown before the splash screen: [ 0.468311] Initramfs unpacking failed: Decoding failed /dev/nvme-n1p6: clean, 470502/4800512 files, 6138995/19200000 blocks As long as the laptop is plugged in before selecting Ubuntu in GRUB, it will boot, but it never finishes booting if it is unplugged, even in recovery mode. It also occurred in Ubuntu 19.10. When the boot freezes even in recovery mode, the bug should be reported against the kernel according to this page: https://wiki.ubuntu.com/Bugs/FindRightPackage#During_boot ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-33-generic 5.4.0-33.37 ProcVersionSignature: Ubuntu 5.4.0-33.37-generic 5.4.34 Uname: Linux 5.4.0-33-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: tyler 1777 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Sat May 30 10:05:26 2020 InstallationDate: Installed on 2020-02-05 (114 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) MachineType: Dell Inc. Latitude 5500 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-33-generic root=UUID=fa5c4fdb-0e37-4ef5-b109-3c129736f66c ro quiet splash RelatedPackageVersions: linux-restricted-modules-5.4.0-33-generic N/A linux-backports-modules-5.4.0-33-generic N/A linux-firmware 1.187 SourcePackage: linux UpgradeStatus: Upgraded to focal on 2020-05-12 (17 days ago) dmi.bios.date: 12/26/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.6.5 dmi.board.name: 0M14W7 dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.6.5:bd12/26/2019:svnDellInc.:pnLatitude5500:pvr:rvnDellInc.:rn0M14W7:rvrA01:cvnDellInc.:ct10:cvr: dmi.product.family: Latitude dmi.product.name: Latitude 5500 dmi.product.sku: 08B9 dmi.sys.vendor: Dell Inc. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal ** Description changed: On Dell Latitude 5500 laptop, dual-boot Ubuntu/Windows, Ubuntu 20.04 64-bit, 5.4.0-33-generic, Ubuntu boot stops with blank screen when the laptop is unplugged, even in recovery mode. After plugging in power after a failed reboot, the following message is shown before the splash screen: [ 0.468311] Initramfs unpacking failed: Decoding failed /dev/nvme-n1p6: clean, 470502/4800512 files, 6138995/19200000 blocks As long as the laptop is plugged in before selecting Ubuntu in GRUB, it will boot, but it never finishes booting if it is unplugged, even in recovery mode. It also occurred in Ubuntu 19.10. + When the boot freezes even in recovery mode, the bug should be reported + against the kernel according to this page: + https://wiki.ubuntu.com/Bugs/FindRightPackage#During_boot + ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-33-generic 5.4.0-33.37 ProcVersionSignature: Ubuntu 5.4.0-33.37-generic 5.4.34 Uname: Linux 5.4.0-33-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.2 Architecture: amd64 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC0: tyler 1777 F.... pulseaudio + USER PID ACCESS COMMAND + /dev/snd/controlC0: tyler 1777 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Sat May 30 10:05:26 2020 InstallationDate: Installed on 2020-02-05 (114 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) MachineType: Dell Inc. Latitude 5500 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-33-generic root=UUID=fa5c4fdb-0e37-4ef5-b109-3c129736f66c ro quiet splash RelatedPackageVersions: - linux-restricted-modules-5.4.0-33-generic N/A - linux-backports-modules-5.4.0-33-generic N/A - linux-firmware 1.187 + linux-restricted-modules-5.4.0-33-generic N/A + linux-backports-modules-5.4.0-33-generic N/A + linux-firmware 1.187 SourcePackage: linux UpgradeStatus: Upgraded to focal on 2020-05-12 (17 days ago) dmi.bios.date: 12/26/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.6.5 dmi.board.name: 0M14W7 dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.6.5:bd12/26/2019:svnDellInc.:pnLatitude5500:pvr:rvnDellInc.:rn0M14W7:rvrA01:cvnDellInc.:ct10:cvr: dmi.product.family: Latitude dmi.product.name: Latitude 5500 dmi.product.sku: 08B9 dmi.sys.vendor: Dell Inc. ** Description changed: On Dell Latitude 5500 laptop, dual-boot Ubuntu/Windows, Ubuntu 20.04 64-bit, 5.4.0-33-generic, Ubuntu boot stops with blank screen when the laptop is unplugged, even in recovery mode. - After plugging in power after a failed reboot, the following message is shown before the splash screen: + After plugging in power after a failed boot, the following message is shown before the splash screen: [ 0.468311] Initramfs unpacking failed: Decoding failed /dev/nvme-n1p6: clean, 470502/4800512 files, 6138995/19200000 blocks As long as the laptop is plugged in before selecting Ubuntu in GRUB, it will boot, but it never finishes booting if it is unplugged, even in recovery mode. It also occurred in Ubuntu 19.10. When the boot freezes even in recovery mode, the bug should be reported against the kernel according to this page: https://wiki.ubuntu.com/Bugs/FindRightPackage#During_boot ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-33-generic 5.4.0-33.37 ProcVersionSignature: Ubuntu 5.4.0-33.37-generic 5.4.34 Uname: Linux 5.4.0-33-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: tyler 1777 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Sat May 30 10:05:26 2020 InstallationDate: Installed on 2020-02-05 (114 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) MachineType: Dell Inc. Latitude 5500 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-33-generic root=UUID=fa5c4fdb-0e37-4ef5-b109-3c129736f66c ro quiet splash RelatedPackageVersions: linux-restricted-modules-5.4.0-33-generic N/A linux-backports-modules-5.4.0-33-generic N/A linux-firmware 1.187 SourcePackage: linux UpgradeStatus: Upgraded to focal on 2020-05-12 (17 days ago) dmi.bios.date: 12/26/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.6.5 dmi.board.name: 0M14W7 dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.6.5:bd12/26/2019:svnDellInc.:pnLatitude5500:pvr:rvnDellInc.:rn0M14W7:rvrA01:cvnDellInc.:ct10:cvr: dmi.product.family: Latitude dmi.product.name: Latitude 5500 dmi.product.sku: 08B9 dmi.sys.vendor: Dell Inc. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1881367 Title: Ubuntu 20.04 boot hangs when laptop unplugged To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1881367/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
