> Sometimes, when the system is rendered unresponsive as a result of any
of the above, the power led is sending the message of "processor
failure" (2 x amber blinks followed by 1 x white blink).
Based on this, your CPU is failing. Unfortunately, this is not something
software (Ubuntu) related, but hardware related. Your Dell Latitude 7390
laptop hardware is failing and the computer motherboard likely needs
replacement. Sometimes this happens from age or use, or simply
manufacturer defects that don't show up for years.
Sadly, I will have to close this bug as "Invalid" since it's not an
Ubuntu bug, but rather a hardware failure. Additionally, this bug report
is no place for such a discussion (as with any bug tracker), so unless
there's further irrefutable evidence that points to this being an actual
bug with Ubuntu and not a hardware failure as evidenced, please comment,
otherwise keep this bug report closed.
Coming to this conclusion is always hard because, from the Ubuntu side,
it means there's nothing more we can do to help you. We do, however,
thank you for your bug report and helping to make Ubuntu better.
** Changed in: linux-hwe-5.4 (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/2000491
Title:
Dell Latitude 7390 running Ubuntu 18.04.6 fresh install system non-
recoverable after screen lock and screen completely fades to black or
after system goes into sleep
Status in linux-hwe-5.4 package in Ubuntu:
Invalid
Bug description:
This is a fresh install of Ubuntu 18.04.6 on Dell Latitude 7390.
The system is non-recoverable after it goes into sleep. Or after the
screen is locked by the user and after it fades to complete black.
System becomes unresponsive, no mouse or keypress will get the system
back on to work.
If the systemctl suspend is issued, the system will not wake up again.
Hard reset is needed.
If Ubuntu 18.04.6 is booted from live USB, the same is happening.
Sometimes, when the system is rendered unresponsive as a result of any
of the above, the power led is sending the message of "processor
failure" (2 x amber blinks followed by 1 x white blink).
Any help is greatly appreciated! I will keep the system as is, without
applying any updates for now.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-5.4.0-84-generic 5.4.0-84.94~18.04.1
ProcVersionSignature: Ubuntu 5.4.0-84.94~18.04.1-generic 5.4.133
Uname: Linux 5.4.0-84-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.26
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue Dec 27 01:13:12 2022
InstallationDate: Installed on 2022-12-26 (0 days ago)
InstallationMedia: Ubuntu 18.04.6 LTS "Bionic Beaver" - Release amd64
(20210915)
SourcePackage: linux-signed-hwe-5.4
UpgradeStatus: No upgrade log present (probably fresh install)
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