It seems fixed in bios version 1.79 https://download.lenovo.com/pccbbs/mobiles/n2lul17w.txt "Fix an issue where Linux system cannot restart or power on after system shutdown when AC adapter is attached." Many thanks for your help.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1890415 Title: Lenovo ThinkPad X390 won’t boot while plugged in Status in linux package in Ubuntu: Confirmed Bug description: Hello. I’m using Lenovo ThinkPad X390 Yoga (model type: 20NN002NMC). I have been using dual boot of the preinstalled Windows 10 x64 and Linux. I have tried the latest versions of Ubuntu and Debian. About 6 weeks ago, after updating the BIOS to N2LET76W 1.75 (https://download.lenovo.com/pccbbs/mobiles/n2lur14w.txt) and the Intel Management Engine Firmware (12.0.67.1579), an issue arose. When I boot to Ubuntu 20.04.1 (kernel 5.4.0-42-generic) using the Grub bootloader with active Secure Boot (fully supported), and then I turn the notebook off or restart it in Ubuntu, it won’t turn back on – it won’t POST, the screen is black, etc. After that time, I need to unplug the notebook from the power adapter, or remove it from the dock, and it will boot on battery. But it won’t boot while plugged in until it boots into Windows and is turned off/restart from it. After booting to Windows, it works fine while plugged in, until it is turned off in Ubuntu again. I have tried install recommend drivers and software.. It looks like a BIOS/Firmware error related to power management. I’m using the latest BIOS/Firmware updated via the official Lenovo software – Lenovo Vantage (bios version 1.76). Notebook was sent to Lenovo for repairs, the motherboard was replaced, yet the problem persists – hence thinking it’s BIOS/Firmware related. Lenovo claims it’s Linux’s issue, even though the list it as officially supported (https://support.lenovo.com/sk/en/solutions/pd031426) and there refer me to the community. Lenovo stuff inform me too, that this issue may be related to requirements Windows 10 v2004. Many thanks for your help. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-42-generic 5.4.0-42.46 ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44 Uname: Linux 5.4.0-42-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mato 1576 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Wed Aug 5 11:36:45 2020 InstallationDate: Installed on 2020-08-02 (2 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) MachineType: LENOVO 20NN002NMC ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=sk_SK.UTF-8 SHELL=/bin/bash ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-42-generic root=UUID=ca486d67-1377-47fb-93c3-cfb279657f9d ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-42-generic N/A linux-backports-modules-5.4.0-42-generic N/A linux-firmware 1.187.2 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/16/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N2LET76W (1.76 ) dmi.board.asset.tag: Not Available dmi.board.name: 20NN002NMC dmi.board.vendor: LENOVO dmi.board.version: 0B98417 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 31 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN2LET76W(1.76):bd06/16/2020:svnLENOVO:pn20NN002NMC:pvrThinkPadX390Yoga:rvnLENOVO:rn20NN002NMC:rvr0B98417WIN:cvnLENOVO:ct31:cvrNone: dmi.product.family: ThinkPad X390 Yoga dmi.product.name: 20NN002NMC dmi.product.sku: LENOVO_MT_20NN_BU_Think_FM_ThinkPad X390 Yoga dmi.product.version: ThinkPad X390 Yoga dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1890415/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
