Yes, I am using Kubuntu 18.04. -- 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/1824575
Title: Can't boot Thinkpad T540 it's on docking station Status in linux package in Ubuntu: Confirmed Bug description: The laptop boots without any issue when it is not connected to the docking station. However when it's connected to the docking and I try to boot it, I get a black screen shortly after the Kubuntu icon shows during the booting process. To boot the laptop, I have to disconnect it from the docking station, boot it up and log on, then I can connect it to the docking station. Similar bug has been reported for Fedora, here: https://bugzilla.redhat.com/show_bug.cgi?id=1527669 Rebasing Fedora 28 to Kernel 4.20.5-100 solved the problem for them. similar problem has also been reported here: https://bugzilla.redhat.com/show_bug.cgi?id=1549169 The problem appears to exist for any version of Thinkpad laptop that is connected to a docking station. Any help to resolve this problem will be much appreciated. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-47-generic 4.15.0-47.50 ProcVersionSignature: Ubuntu 4.15.0-47.50-generic 4.15.18 Uname: Linux 4.15.0-47-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.9-0ubuntu7.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: cadav 3479 F.... pulseaudio /dev/snd/controlC0: cadav 3479 F.... pulseaudio CurrentDesktop: KDE Date: Fri Apr 12 14:34:45 2019 HibernationDevice: RESUME=UUID=3d20fcf7-5e81-4968-899f-e10fdd62fd3e InstallationDate: Installed on 2016-08-12 (973 days ago) InstallationMedia: Kubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: LENOVO 4239CTO ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-47-generic root=UUID=8281f38c-3259-4659-b75d-723fc8b5401b ro quiet splash vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.15.0-47-generic N/A linux-backports-modules-4.15.0-47-generic N/A linux-firmware 1.173.3 SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-08-21 (234 days ago) dmi.bios.date: 09/20/2016 dmi.bios.vendor: LENOVO dmi.bios.version: 8AET66WW (1.46 ) dmi.board.asset.tag: Not Available dmi.board.name: 4239CTO dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr8AET66WW(1.46):bd09/20/2016:svnLENOVO:pn4239CTO:pvrThinkPadT520:rvnLENOVO:rn4239CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.family: ThinkPad T520 dmi.product.name: 4239CTO dmi.product.version: ThinkPad T520 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1824575/+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