Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.0 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.0-rc4-vivid/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1431713 Title: After reboot root partition password prompt is displayed on laptop screen even when connected to external display Status in linux package in Ubuntu: Incomplete Bug description: Lenovo t440s with encrypted root partition, connected to Lenovo docking station and attached to DELL monitor. Restart the system laptop lid closed. Shutdown and restart: Boot time screen and encrypted partition password prompt are correctly shown on monitor. Reboot: Boot time screen and encrypted partition password prompt are shown on laptop screen, not on monitor. External display wakes up only when the login prompt is displayed. Attached shutdown.dmesg and reboot.dmesg respectively. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: systemd 219-4ubuntu5 ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1 Uname: Linux 3.19.0-9-generic x86_64 ApportVersion: 2.16.2-0ubuntu2 Architecture: amd64 CurrentDesktop: GNOME Date: Fri Mar 13 09:36:46 2015 InstallationDate: Installed on 2015-03-07 (5 days ago) InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Alpha amd64 (20150304) MachineType: LENOVO 20AQ007SMS ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-9-generic root=/dev/mapper/ubuntu--gnome--vg-root ro quiet splash vt.handoff=7 SourcePackage: systemd UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/10/2014 dmi.bios.vendor: LENOVO dmi.bios.version: GJET71WW (2.21 ) dmi.board.asset.tag: Not Available dmi.board.name: 20AQ007SMS dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 PRO dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrGJET71WW(2.21):bd02/10/2014:svnLENOVO:pn20AQ007SMS:pvrThinkPadT440s:rvnLENOVO:rn20AQ007SMS:rvrSDK0E50510PRO:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 20AQ007SMS dmi.product.version: ThinkPad T440s dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1431713/+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
