Problem restarting with new Kernel 5.8.0-36

[Víctor]

I have installed the last Ubuntu 20.04.1 LTS update and It installed the new kernel 5.8.0-36. I have got some problems with this kernel.

For example, when I reboot my PC, sometimes it doesn't start and stay in the msdos window that you watch at the beginning when you switch on the PC (It's the window that shows your motherboard, disk ready, etc).

Another problems is that when I use Mozilla Firefox 84.0.2 64 bits, I have got some crashes randomly when I open a new tab (the crash is only in the new tab, not in all Firefox program).

Please fix this kernel.

Thank you.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: evince 3.36.7-0ubuntu1
ProcVersionSignature: Ubuntu 5.8.0-36.40~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-36-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.14
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri Jan 8 15:40:54 2021
InstallationDate: Installed on 2020-04-24 (258 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=es_ES.UTF-8
 SHELL=/bin/bash
SourcePackage: evince
UpgradeStatus: No upgrade log present (probably fresh install)

[Víctor (pitx89)]

The bug was a problem with my motherboard. The motherboard has got a problem with the modules of RAM.

You can close the report.

[Víctor (pitx89)]

Sorry for inconvenience.

[Güven Atbakan (guvenatbakan)]

I have Ubuntu 20.04.1 LTS and after upgrade to latest kernel, I got same errors as @Victor. It started by Firefox random crashes. And then my development IDE followed these crashes. And finally I was not able to restart my computer. It was staying in black screen.

After doing a diagnostic check on bios, I saw that my RAM is controls are failing. I bought a new RAM and continue my life now. But still getting black screen on restart.

Sorry, no evidence. Maybe its coincidence. But though worth to sharing.