This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1815122 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => 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/1815122 Title: Unable to login via tty Status in linux package in Ubuntu: Incomplete Bug description: I am using Ubuntu 16.04. After upgrading the kernel from 4.4.0-141.167-generic to 4.4.0-142.168-generic I am experiencing problem logging in via the tty. I am able to provide my username, but the terminal automatically submit password before I am able to type it. If I start the computer with the previous kernel (4.4.0-141.167) it works as expected. I have done strace on the tty in both scenarios while performing the login with the following command: "sudo strace -p 1572 -s 1024 -vff -o tty-login-issue/login" 4.4.0-141.167-generic (works): https://gist.github.com/ivarconr/b022d2b4cadfc654031e8a930bf4408b 4.4.0-142.168-generic (fails): https://gist.github.com/ivarconr/603409ad1f0a3343a7f44a854283befc Let me know if you need me to provide any additional details. --- ApportVersion: 2.20.1-0ubuntu2.18 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ivaosthu 3706 F.... pulseaudio /dev/snd/controlC1: ivaosthu 3706 F.... pulseaudio CurrentDesktop: i3 DistroRelease: Ubuntu 16.04 HibernationDevice: RESUME=UUID=08d4aeb0-e54b-475e-8a26-b9e8b488a314 InstallationDate: Installed on 2016-08-12 (909 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: LENOVO 20EQS2HW00 Package: linux (not installed) ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-142-generic.efi.signed root=UUID=a0472864-d2ab-4f9d-8b4c-e89db4dbd51b ro quiet nomodeset splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.4.0-142.168-generic 4.4.167 RelatedPackageVersions: linux-restricted-modules-4.4.0-142-generic N/A linux-backports-modules-4.4.0-142-generic N/A linux-firmware 1.157.21 Tags: xenial Uname: Linux 4.4.0-142-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom davfs2 dip docker lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 05/10/2016 dmi.bios.vendor: LENOVO dmi.bios.version: N1EET52W (1.26 ) dmi.board.asset.tag: Not Available dmi.board.name: 20EQS2HW00 dmi.board.vendor: LENOVO dmi.board.version: SDK0J40697 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN1EET52W(1.26):bd05/10/2016:svnLENOVO:pn20EQS2HW00:pvrThinkPadP50:rvnLENOVO:rn20EQS2HW00:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20EQS2HW00 dmi.product.version: ThinkPad P50 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1815122/+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