Same issue, here, on Latitude 5547 with Intel Haswell i3 and Haswell-ULT
integrated (HD 4400) graphics. This laptop has fully upgraded hardware -
new SSD, new 16GB RAM, new battery, new Wifi/BT card - and performs like
a monster, running Windows, Manjaro, and most Ubuntu flavors, including
a touchscreen. However, my goto is Ubuntu Studio (xfce), and that OS is
where I'm getting the random freezes. It just locks up under no
repeatable conditions. Sometimes it happens while I'm working, sometimes
while I'm away from my desk, sometimes with apps running, sometimes with
no apps open, so workload is not a factor.

One caveat to my experience: I'm able to use the Alt-Ctrl-F* keys to
drop to a terminal, but nothing else works. No other keys on the
keyboard respond, nor does the touchscreen receive input.

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1798961

Title:
  Random unrecoverable freezes on Ubuntu 18.10

Status in Linux:
  New
Status in linux package in Ubuntu:
  Confirmed
Status in xserver-xorg-video-intel package in Ubuntu:
  Invalid
Status in linux source package in Bionic:
  Triaged
Status in xserver-xorg-video-intel source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  Triaged
Status in xserver-xorg-video-intel source package in Cosmic:
  Invalid
Status in linux source package in Disco:
  Triaged
Status in xserver-xorg-video-intel source package in Disco:
  Invalid

Bug description:
  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.

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

  Also happens under Arch Linux and Fedora.
  I've talked to another user on IRC who seems to be having the same freezes.

  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.

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