Xorg crashed with SIGBUS in CheckPassiveGrab() from CheckPassiveGrabsOnWindow() from CheckDeviceGrabs() from ProcessDeviceEvent() from ProcessOtherEvent()

Xorg crached when using nvidia 390 driver when suspend or turn off the screen, it logs out where the greeting screen says `login` instead of `Unlock` and when enter all applications are closed ( the session was killed).

ProblemType: Crash
DistroRelease: Ubuntu 18.04
Package: xserver-xorg-core 2:1.19.6-1ubuntu4
ProcVersionSignature: Ubuntu 4.15.0-33.36-generic 4.15.18
Uname: Linux 4.15.0-32-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
.proc.driver.nvidia.gpus.0000.03.00.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0000:03:00.0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 390.48 Thu Mar 22 00:42:57 PDT 2018
 GCC version: gcc version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CrashCounter: 1
Date: Fri Aug 24 13:21:14 2018
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
DkmsStatus:
 nvidia, 390.48, 4.15.0-32-generic, x86_64: installed
 nvidia, 390.48, 4.15.0-33-generic, x86_64: installed
ExecutablePath: /usr/lib/xorg/Xorg
GraphicsCard:
 Intel Corporation HD Graphics 620 [8086:5916] (rev 02) (prog-if 00 [VGA controller])
   Subsystem: Lenovo HD Graphics 620 [17aa:39f1]
   Subsystem: Lenovo GM108M [GeForce 940MX] [17aa:39f1]
MachineType: LENOVO 80SV
ProcCmdline: /usr/lib/xorg/Xorg vt1 -displayfd 3 -auth /run/user/120/gdm/Xauthority -background none -noreset -keeptty -verbose 3
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-33-generic root=UUID=d175c9ce-90fb-4afa-b2f7-51f8c3d9a9b6 ro quiet splash vt.handoff=1
Signal: 7
SourcePackage: nvidia-graphics-drivers
StacktraceTop:
 buffered_vfprintf (s=s@entry=0x564b3dea2350, format=format@entry=0x564b3d03c35e "[%10.3f] ", args=args@entry=0x7ffde5c76320) at vfprintf.c:2308
 _IO_vfprintf_internal (s=s@entry=0x564b3dea2350, format=0x564b3d03c35e "[%10.3f] ", ap=ap@entry=0x7ffde5c76320) at vfprintf.c:1301
 ___fprintf_chk (fp=0x564b3dea2350, flag=1, format=<optimized out>) at fprintf_chk.c:35
 ()
 LogVMessageVerbSigSafe ()
Title: Xorg crashed with signal 7 in buffered_vfprintf()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

dmi.bios.date: 04/09/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: 3JCN30WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: Torronto 5C1
dmi.board.vendor: LENOVO
dmi.board.version: NO DPK
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo ideapad 510-15IKB
dmi.modalias: dmi:bvnLENOVO:bvr3JCN30WW:bd04/09/2018:svnLENOVO:pn80SV:pvrLenovoideapad510-15IKB:rvnLENOVO:rnTorronto5C1:rvrNODPK:cvnLENOVO:ct10:cvrLenovoideapad510-15IKB:
dmi.product.family: IDEAPAD
dmi.product.name: 80SV
dmi.product.version: Lenovo ideapad 510-15IKB
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
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.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
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