I tried both option in grub. It works! 16 hours without freezing. Thank you
very much.
I also tried ubuntu 22.04 on usb stick and it freezes.
So, should I install 22.04 with the workaround ?
I think it is a problem with intel cpu. Complete ref is :
Description: "Intel HD Graphics"
Manufacturer: Intel(R) Corporation
Version: Intel(R) Core(TM) i7-8650U CPU @ 1.90GHz
"Intel Corp."
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https://bugs.launchpad.net/bugs/1939347
Title:
Ubuntu 20.04 freeze since kernel 5.11
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