** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1603810
Title:
Ubuntu turns monitor permanently off during boot
Status in linux package in Ubuntu:
Incomplete
Bug description:
This is a regression, at least trusty (and prior) worked fine on this
hardware.
Booting the Xenial installer image off USB also worked fine.
The system boots fine, however the monitor is in DPMS power-off and
does not ever turn back on. Switching VTs doesn't help, I have found
no way to get it switch on.
Removing '$vt_handoff' from grub resolves the problem and the system
seems to work fine.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-31-generic 4.4.0-31.50
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: jgg 2224 F.... pulseaudio
/dev/snd/controlC0: jgg 2224 F.... pulseaudio
CurrentDesktop: Unity
Date: Sun Jul 17 14:04:30 2016
HibernationDevice: RESUME=UUID=b254872c-e84b-427c-bebe-343c031cbdcd
InstallationDate: Installed on 2016-04-22 (86 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64
(20160420.1)
IwConfig:
lo no wireless extensions.
enp6s0 no wireless extensions.
MachineType: System manufacturer System Product Name
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-31-generic.efi.signed
root=/dev/mapper/main2-xenial64 ro quiet splash
RelatedPackageVersions:
linux-restricted-modules-4.4.0-31-generic N/A
linux-backports-modules-4.4.0-31-generic N/A
linux-firmware 1.157.2
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/25/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0805
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: P8H67-M EVO
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr0805:bd11/25/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8H67-MEVO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
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