I tried what you said but it's stuck that run level might be some graphics
parameters have to changed.
I have remove the Nvidia Driver 390 using recovery menu .
Now it's working fine.
Thanks for you response

On Wed, Aug 8, 2018, 9:55 AM Daniel van Vugt <email address hidden>
wrote:

> Please try the workarounds mentioned at the top of bug 1705369.
>
> ** Package changed: ubuntu => nvidia-graphics-drivers-390 (Ubuntu)
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1785363
>
> Title:
>   Error in Booting
>
> Status in nvidia-graphics-drivers-390 package in Ubuntu:
>   Incomplete
>
> Bug description:
>   When i change my default graphics driver as Nvidia then it's not start
>   .
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 18.04
>   Package: xorg 1:7.7+19ubuntu7
>   ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
>   Uname: Linux 4.15.0-29-generic x86_64
>   NonfreeKernelModules: wl
>   .tmp.unity_support_test.0:
>
>   ApportVersion: 2.20.9-0ubuntu7.2
>   Architecture: amd64
>   CompizPlugins: No value set for
> `/apps/compiz-1/general/screen0/options/active_plugins'
>   CompositorRunning: None
>   Date: Sat Aug  4 09:59:11 2018
>   DistUpgraded: 2018-06-18 22:25:36,929 DEBUG icon theme changed,
> re-reading
>   DistroCodename: bionic
>   DistroVariant: ubuntu
>   DkmsStatus:
>    bcmwl, 6.30.223.271+bdcom, 4.15.0-23-generic, x86_64: installed
>    bcmwl, 6.30.223.271+bdcom, 4.15.0-29-generic, x86_64: installed
>    virtualbox, 5.2.10, 4.15.0-23-generic, x86_64: installed
>    virtualbox, 5.2.10, 4.15.0-29-generic, x86_64: installed
>   DpkgLog:
>
>   ExtraDebuggingInterest: Yes, if not too technical
>   GraphicsCard:
>    Intel Corporation 2nd Generation Core Processor Family Integrated
> Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
>      Subsystem: Lenovo 2nd Generation Core Processor Family Integrated
> Graphics Controller [17aa:397d]
>    NVIDIA Corporation GF119M [GeForce GT 520M] [10de:1050] (rev a1)
> (prog-if 00 [VGA controller])
>      Subsystem: Lenovo GF119M [GeForce GT 520M] [17aa:397d]
>   MachineType: LENOVO HuronRiver Platform
>   ProcEnviron:
>    LANGUAGE=en_IN:en
>    PATH=(custom, no user)
>    LANG=en_IN
>    SHELL=/bin/bash
>   ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-29-generic
> root=UUID=976f64eb-604f-4770-b36c-2efb3dae6ef1 ro quiet splash
> acpi_backlight=none vt.handoff=1
>   SourcePackage: xorg
>   UpgradeStatus: Upgraded to bionic on 2018-06-18 (46 days ago)
>   dmi.bios.date: 10/21/2011
>   dmi.bios.vendor: LENOVO
>   dmi.bios.version: 45CN38WW
>   dmi.board.asset.tag: Base Board Asset Tag
>   dmi.board.name: Emerald Lake
>   dmi.board.vendor: LENOVO
>   dmi.board.version: FAB1
>   dmi.chassis.asset.tag: Asset Tag
>   dmi.chassis.type: 10
>   dmi.chassis.vendor: LENOVO
>   dmi.chassis.version: 0.1
>   dmi.modalias:
> dmi:bvnLENOVO:bvr45CN38WW:bd10/21/2011:svnLENOVO:pnHuronRiverPlatform:pvrIdeapadZ570:rvnLENOVO:rnEmeraldLake:rvrFAB1:cvnLENOVO:ct10:cvr0.1:
>   dmi.product.family: HuronRiver System
>   dmi.product.name: HuronRiver Platform
>   dmi.product.version: Ideapad Z570
>   dmi.sys.vendor: LENOVO
>   version.compiz: compiz 1:0.9.13.1+18.04.20180302-0ubuntu1
>   version.libdrm2: libdrm2 2.4.91-2
>   version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~18.04.1
>   version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~18.04.1
>   version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
>   version.xserver-xorg-input-evdev: xserver-xorg-input-evdev
> 1:2.10.5-1ubuntu1
>   version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
>   version.xserver-xorg-video-intel: xserver-xorg-video-intel
> 2:2.99.917+git20171229-1
>   version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
>   xserver.bootTime: Mon Jun 18 23:25:54 2018
>   xserver.configfile: default
>   xserver.errors: Failed to initialize GLX extension (Compatible NVIDIA X
> driver not found)
>   xserver.logfile: /var/log/Xorg.0.log
>   xserver.outputs:
>    product id                               16560
>    vendor                                     LEN
>   xserver.version: 2:1.19.6-1ubuntu4
>
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>
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>