[Lenovo W520] Linux Freezing Issue At Boot
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Medium
|
Unassigned |
Bug Description
Boot error occurs in a 64-bit system and only when certain conditions are met:
BIOS/UEFI Settings:
Config -> Display -> Graphics Device [Discrete Graphics]
Security -> Virtualization -> Intel(R) Virtualization Technology [Enabled]
System hangs at boot time either after kernel log shows:
[ 1.043982] ACPI: Video Device [VID1] (multi-head: yes rom: yes post: no)
[ 1.047138] FUJITSU Extended Socket Network Device Driver - version 1.0 - Copyright (c) 2015 FUJITSU LIMITED
or later after:
[OK] Started Load/Save Screen Backlight Brightness of backlight:
The error occurs randomly (about 50% of all boot tries).
The error has already been known for a long time (e.g. https:/
https:/
https:/
https:/
https:/
https:/
https:/
A workaround for this issue is to add kernel parameter "nox2apic" to the GRUB_CMDLINE_
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-
ProcVersionSign
Uname: Linux 4.4.0-77-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
CurrentDesktop: XFCE
Date: Wed May 3 13:03:38 2017
HibernationDevice: RESUME=
MachineType: LENOVO 42844AG
ProcFB: 0 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.157.8
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/20/2016
dmi.bios.vendor: LENOVO
dmi.bios.version: 8BET63WW (1.43 )
dmi.board.
dmi.board.name: 42844AG
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.
dmi.modalias: dmi:bvnLENOVO:
dmi.product.name: 42844AG
dmi.product.
dmi.sys.vendor: LENOVO
description: | updated |
description: | updated |
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