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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'.
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This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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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
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