Public bug reported:

Two days ago I upgraded the OS version to 16.10.Suddenly I got black
screen after I start up the Laptop(HP Probook 4530S).

There was only a text file in Desktop and only that file was visible and was 
able to open it.
The rest was black and unable to take any actions.I was not using new unity and 
using the default Ubuntu GUI.

I am only using Ubuntu 16.10 as my OS.

After shutting down using power button and restart the OS.After that
everything became normal.No issues after that at all.

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: linux-image-4.8.0-22-generic 4.8.0-22.24
ProcVersionSignature: Ubuntu 4.8.0-22.24-generic 4.8.0
Uname: Linux 4.8.0-22-generic x86_64
ApportVersion: 2.20.3-0ubuntu8
Architecture: amd64
 /dev/snd/controlC0:  buddhika   2505 F.... pulseaudio
CurrentDesktop: Unity
Date: Sat Oct 15 18:59:40 2016
HibernationDevice: RESUME=UUID=6921ad69-e47b-4df7-9a85-13f0f806b2d7
InstallationDate: Installed on 2016-06-20 (117 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: Hewlett-Packard HP ProBook 4530s
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-22-generic 
root=UUID=a3b5bc38-a3a4-44e3-ae98-36a61ffbcf7c ro quiet splash vt.handoff=7
 linux-restricted-modules-4.8.0-22-generic N/A
 linux-backports-modules-4.8.0-22-generic  N/A
 linux-firmware                            1.161
SourcePackage: linux
UpgradeStatus: Upgraded to yakkety on 2016-10-13 (1 days ago) 11/27/2012
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68SRR Ver. F.30 167C
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 22.24
dmi.chassis.asset.tag: CNU2190D70
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi:bvnHewlett-Packard:bvr68SRRVer.F.30:bd11/27/2012:svnHewlett-Packard:pnHPProBook4530s:pvrA0001D02:rvnHewlett-Packard:rn167C:rvrKBCVersion22.24:cvnHewlett-Packard:ct10:cvr: HP ProBook 4530s
dmi.product.version: A0001D02
dmi.sys.vendor: Hewlett-Packard

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Tags: amd64 apport-bug yakkety

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  Black screen after boot up

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