Public bug reported:
CONFIG_EARLY_PRINTK_USB_XDBC is currently disabled in the Ubuntu kernel
configs. This would be useful to have enabled for debugging early-boot
problems with a USB 3.0 debugging cable.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-98-generic 4.4.0-98.121
ProcVersionSignature: Ubuntu 4.4.0-98.121-generic 4.4.90
Uname: Linux 4.4.0-98-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: rishika 2025 F.... pulseaudio
/dev/snd/pcmC1D0p: rishika 2025 F...m pulseaudio
/dev/snd/controlC1: rishika 2025 F.... pulseaudio
CurrentDesktop: Unity
Date: Sat Nov 11 18:18:25 2017
InstallationDate: Installed on 2017-10-13 (29 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: LENOVO 20CDCTO1WW
ProcEnviron:
LANGUAGE=en_IN:en
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_IN
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-98-generic
root=UUID=658746ed-12b7-4af8-91d7-759dd551a8ae ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.4.0-98-generic N/A
linux-backports-modules-4.4.0-98-generic N/A
linux-firmware 1.157.13
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/14/2017
dmi.bios.vendor: LENOVO
dmi.bios.version: B0ET37WW (1.24 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20CDCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50512 Std
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvrB0ET37WW(1.24):bd09/14/2017:svnLENOVO:pn20CDCTO1WW:pvrThinkPadS1Yoga:rvnLENOVO:rn20CDCTO1WW:rvrSDK0E50512Std:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 20CDCTO1WW
dmi.product.version: ThinkPad S1 Yoga
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1731700
Title:
Please Enable CONFIG_EARLY_PRINTK_USB_XDBC
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