blank X after boot (Dell Latitude 3540 - intel VGA)

After update to 16.04 boot ok, x blank.
No helps reconfigure X, reinstall X nor ubuntu, I tried external display too without success.
In restore mode lightdm not works, but display ok, after reboot blank again.
but Boot from usb is OK and it works fine!
Boot option??? fs right on sda5 (/root)
Type: Dell Latitude 3540

By other hand I have problem at reinstall grub on MBR (I tried to make windows boot, too.)

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg 1:7.7+13ubuntu3
ProcVersionSignature: Ubuntu 4.13.0-37.42~16.04.1-generic 4.13.13
Uname: Linux 4.13.0-37-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
Date: Sun Mar 18 11:27:41 2018
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
ExtraDebuggingInterest: I just need to know a workaround
GraphicsCard:
 Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller])
   Subsystem: Dell Haswell-ULT Integrated Graphics Controller [1028:0608]
MachineType: Dell Inc. Latitude 3540
ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
 LANG=hu_HU.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-37-generic root=UUID=eb0b3f3a-d632-4d21-9c3d-5d8118216d3d ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/17/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A06
dmi.board.name: 0MC4K5
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A06
dmi.modalias: dmi:bvnDellInc.:bvrA06:bd04/17/2014:svnDellInc.:pnLatitude3540:pvrA06:rvnDellInc.:rn0MC4K5:rvrA00:cvnDellInc.:ct8:cvrA06:
dmi.product.name: Latitude 3540
dmi.product.version: A06
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.12.3+16.04.20180221-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.83-1~16.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.8-0ubuntu0~16.04.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.8-0ubuntu0~16.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-0ubuntu0.7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1.2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
xserver.bootTime: Sun Mar 18 10:23:02 2018
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 5560
 vendor CMN
xserver.version: 2:1.18.4-0ubuntu0.7