I am using Kububntu 20.10 on a HP Spectre x360 15-ch004ng.  It has
Kernel Version 5.8 installed and does not correctly access the cpuinfo
frequency parameters for my CPU, which is an 8xIntel Core i7-8705G CPU @
3.10GHz.

I decided to try booting 20.10 into recovery mode and then entered the
console. I found that cat/proc/cpuinfo | grep "MHz" gave the correct
results. I took a photo of it and this is shown in the attachment.

When I reboot, it then shows the /proc/cpuinfo frequencies in MHz with a
string of 800's, ie

:~$ uname -r 
5.8.0-18-generic 
:~$ cat /proc/cpuinfo | grep "MHz" 
cpu MHz         : 800.072 
cpu MHz         : 800.012 
cpu MHz         : 800.123 
cpu MHz         : 800.196 
cpu MHz         : 800.009 
cpu MHz         : 800.143 
cpu MHz         : 800.062 
cpu MHz         : 800.086

I am not sure how much of the Kernel is loaded at the recovery stage,
but it appears that the problem with not getting the correct CPU Info
occurs after this point.

The end result is a very slow desktop.  This is solved by installing
Kernel Version 5.4.0-42

** Attachment added: "Recovery mode console frequencies in file /proc/cpuinfo"
   
https://bugs.launchpad.net/ubuntu/+source/cpufrequtils/+bug/334577/+attachment/5406778/+files/Recovery20.10.jpg

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https://bugs.launchpad.net/bugs/334577

Title:
  cpufreq : abnormal cpu frequences range used

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