gnome-shell crashed with signal 5

[corrado venturini]

just started, only firefox active
corrado@corrado-HP-p3-bb:~$ inxi -Fx
System: Host: corrado-HP-p3-bb Kernel: 4.13.0-17-generic x86_64 bits: 64 gcc: 7.2.0
           Desktop: Gnome 3.26.2 (Gtk 2.24.31) Distro: Ubuntu Bionic Beaver (development branch)
Machine: Device: laptop System: Hewlett-Packard product: HP 250 G3 Notebook PC v: 0991100000000000000600087 serial: N/A
           Mobo: Hewlett-Packard model: 2211 v: 86.49 serial: N/A UEFI: Insyde v: F.36 date: 12/18/2014
Battery BAT1: charge: 21.3 Wh 90.9% condition: 23.4/23.4 Wh (100%) model: 13-42 OA03031 status: Discharging
CPU: Dual core Intel Core i5-4210U (-HT-MCP-) arch: Haswell rev.1 cache: 3072 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 9578
           clock speeds: max: 2700 MHz 1: 2394 MHz 2: 2394 MHz 3: 2394 MHz 4: 2394 MHz
Graphics: Card: Intel Haswell-ULT Integrated Graphics Controller bus-ID: 00:02.0
           Display Server: x11 (X.Org 1.19.5 ) driver: i915 Resolution: 1366x768@60.00hz
           OpenGL: renderer: Mesa DRI Intel Haswell Mobile version: 4.5 Mesa 17.2.4 Direct Render: Yes
Audio: Card-1 Intel 8 Series HD Audio Controller driver: snd_hda_intel bus-ID: 00:1b.0
           Card-2 Intel Haswell-ULT HD Audio Controller driver: snd_hda_intel bus-ID: 00:03.0
           Sound: Advanced Linux Sound Architecture v: k4.13.0-17-generic
Network: Card-1: Realtek RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
           driver: r8169 v: 2.3LK-NAPI port: 3000 bus-ID: 08:00.0
           IF: enp8s0 state: down mac: 5c:b9:01:06:ba:ce
           Card-2: Ralink RT3290 Wireless 802.11n 1T/1R PCIe driver: rt2800pci v: 2.3.0 bus-ID: 09:00.0
           IF: wlo1 state: up mac: ac:d1:b8:82:03:5d
Drives: HDD Total Size: 500.1GB (2.2% used)
           ID-1: /dev/sda model: ST500LT012 size: 500.1GB
Partition: ID-1: / size: 32G used: 6.4G (22%) fs: ext4 dev: /dev/sda3
           ID-2: swap-1 size: 4.29GB used: 0.00GB (0%) fs: swap dev: /dev/sda2
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 39.0C mobo: 39.0C
           Fan Speeds (in rpm): cpu: N/A
Info: Processes: 227 Uptime: 9 min Memory: 1296.4/3880.0MB Init: systemd runlevel: 5 Gcc sys: 7.2.1
           Client: Shell (bash 4.4.121) inxi: 2.3.45
corrado@corrado-HP-p3-bb:~$

ProblemType: Crash
DistroRelease: Ubuntu 18.04
Package: gnome-shell 3.26.2-0ubuntu1
ProcVersionSignature: Ubuntu 4.13.0-17.20-generic 4.13.8
Uname: Linux 4.13.0-17-generic x86_64
ApportVersion: 2.20.8-0ubuntu3
Architecture: amd64
CurrentDesktop: GNOME-Greeter:GNOME
Date: Fri Dec 8 17:02:20 2017
DisplayManager: gdm3
ExecutablePath: /usr/bin/gnome-shell
GsettingsChanges:

InstallationDate: Installed on 2017-12-04 (4 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20171128)
ProcCmdline: /usr/bin/gnome-shell
Signal: 5
SourcePackage: gnome-shell
StacktraceTop:
 () at /usr/lib/x86_64-linux-gnu/libmutter-1.so.0
 _XIOError () at /usr/lib/x86_64-linux-gnu/libX11.so.6
 _XEventsQueued () at /usr/lib/x86_64-linux-gnu/libX11.so.6
 XPending () at /usr/lib/x86_64-linux-gnu/libX11.so.6
 () at /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
Title: gnome-shell crashed with signal 5
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1732878, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.