Comment 0 for bug 1798961

First thing I notice is that the mouse cursor freezes as I'm using it, then I hit the CAPS LOCK key and the LED indicator doesn't respond. Then I try the "REISUB" command, but it doesn't do anything either. Only a hard reset works, pressing down the power button for a few seconds.

How to reproduce?
I couldn't figure out a consistent method. It is still random to me, although it seems to happen more often when I'm running Xfce (Xubuntu) on a recent kernel (4.17+). Xfce's default image viewer seems to be connected to it, as well. Most of the time I was having multiple instances of it when everything froze.

Version: Ubuntu 4.18.0-10.11-generic 4.18.12
System information attached.

Also happens under Arch Linux and Fedora.

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: linux-image-4.18.0-10-generic 4.18.0-10.11
ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12
Uname: Linux 4.18.0-10-generic x86_64
ApportVersion: 2.20.10-0ubuntu13
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: dsilva 1213 F.... pulseaudio
 /dev/snd/controlC0: dsilva 1213 F.... pulseaudio
CurrentDesktop: XFCE
Date: Sat Oct 20 09:54:50 2018
InstallationDate: Installed on 2018-10-20 (0 days ago)
InstallationMedia: Xubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.2)
MachineType: Dell Inc. Inspiron 5458
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.18.0-10-generic root=/dev/mapper/xubuntu--vg-root ro quiet splash vt.handoff=1
RelatedPackageVersions:
 linux-restricted-modules-4.18.0-10-generic N/A
 linux-backports-modules-4.18.0-10-generic N/A
 linux-firmware 1.175
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/02/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A15
dmi.board.name: 09WGNT
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA15:bd02/02/2018:svnDellInc.:pnInspiron5458:pvr01:rvnDellInc.:rn09WGNT:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Inspiron 5458
dmi.product.sku: Inspiron 5458
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.