High CPU utilization just after display sleep in Hackintosh

I noticed that after a few seconds the monitors went sleep, the CPU utilization and iGPU utilization of my hackintosh went significantly high. This was clearly noticed in the Intel Power Gadget as well,

I kept a terminal session open redirecting the output of top command in terminal (top -o cpu > bla.txt). From the output I was able to find out that mediaanalysisd process was utilizing the CPU and iGPU.

After unloading mediaanalysisd, the issue went away.

Uload command I used,
launchctl unload -w /System/Library/LaunchAgents/com.apple.mediaanalysisd.plist

Restore Google Chrome and Firefox Bookmarks from a backup

I had an issue with my Hackintosh, so that it wouldn't boot anymore. However I was able to mount the disk of the machine to another newly built Hackintosh which helped me to access the files of the troubled Hackintosh.

First I plugged the disk to the new Hackintosh

For Google Chrome,

1. Navigate to below location of the disk,

/Volumes/<volume name> - Data/Users/<username>/Library/Application Support/Google/Chrome/Default

2. There should be two Bookmark files in the directory:'Bookmarks' and 'Bookmarks.bak'

3. Check the latest by executing diff command

4. Copy the latest to below location of your new machine

/Users/<username>/Library/Application Support/Google/Chrome/Default

For Firefox,

1. Navigate to below location of the disk,

/Volumes/<volume name> - Data/Users/<username>/Library/Application Support/Firefox/Profiles/wzghbr3j.default/bookmarkbackups

2. There should be multiple files in the directory.

e.g.:

bookmarks-2020-02-08_744_<some-encoded-values>.jsonlz4

bookmarks-2020-02-09_744_<some-encoded-values>.jsonlz4

3. Pick the latest file and copy it to the desktop


4. Open Firefox, Select Bookmark and then Show All BookMarks


5. Click on Restore and then select choose file


6. Select the file from the Desktop

How to disable parsec-fbf which prevents Catalina Sleep functionality

1. Execute below command to find out which processes block sleep,

pmset -g assertions

2. Execute below command to disable parsec-fbf

launchctl unload -w /System/Library/LaunchAgents/com.apple.parsec-fbf.plist