I have originally windows 10 in my laptop (model No. HP ZBook Power 15.6 Inch G8) but I am using Ubantu 22.04 instead of it. It was working fine initially with Ubantu but now very often laptop freezes suddenly while using and I have to force shut it down. Even after restarting it again, many times it again freezes.
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What is the CPU and GPU? – Pilot6 Jul 18 '22 at 10:28
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If the freezes happen at random moments 1st thing to do is to check the memory modules. If those show errors do replace the one with errors. – Rinzwind Jul 18 '22 at 11:46
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1Does this answer your question? [What should I do when Ubuntu freezes?](https://askubuntu.com/questions/4408/what-should-i-do-when-ubuntu-freezes) – karel Jul 18 '22 at 12:29
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I checked it is not due to memory overload. – Nandita Pan Jul 21 '22 at 06:48
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CPU: Intel core i9-11900H 8 Core and GPU: Nvidia Quadro T1200 Graphics 4 GB DDR6 – Nandita Pan Jul 28 '22 at 05:01
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Following error is appearing on the black screen after resatrting [ 2085.931558] wlp0s20f3: deauthenticating from a4:9b:cd:ea:fc:4f by local choice (Reason: 3=DEAUTH_LEAVING) – Nandita Pan Jul 28 '22 at 07:43