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On my thinkpad T14 Gen 2 which I purchased on July 2022 I have installed Ubuntu 22.04. Recently the fan speed runs very fast and System Monitor does not show the CPU is working hard. I have tied to fix it with this guide on reddit. https://www.reddit.com/r/Ubuntu/comments/wrvsm2/laptops_fan_stops_working_after_suspend_ubuntu/

When I restarted my laptop it does non boot.

I have used a Live USB and removed kernel 5.17 and restarted the laptop, but it often keeps crashing. Although I have launched recovery mode to fix a damaged package (dpkg command) the problem keeps repeating itself.

Edit

I have already done a test with Boot Repair with this result: http://sprunge.us/wKshGy

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  • Is this a Dell machine? Kernel 5.17 has been the cause of may issues recently. Most have been fixed by running kernel 5.15 What kernel are you running now?
    – David
    Oct 29, 2022 at 9:56
  • I have already written on: this is a Thinkpad, Lenovo, T14 Gen 2.
    – Damark
    Oct 29, 2022 at 10:32
  • The kernel that run now is 5.15 because i removed 5.17. The problem still continue anyway.
    – Damark
    Oct 29, 2022 at 10:40
  • OK lets try one more time. What do you mean by crashing? Does it not boot? Does it boot and you login and it crashes? Please add some more detail. From your question "Although I have launched recovery mode to fix a damaged package (dpkg command) the problem keeps repeating itself." Please explain what this means. What damaged package. Did the issues start after you did this "fix"?
    – David
    Oct 29, 2022 at 10:50
  • Sorry David. When I turned on my laptop, it blocked on loading ubuntu 22.04. Sometimes it's block when logo Lenovo appears, sometimes it blocks after logo lenovo while ubuntu loading. When you turn on laptop you can go into GRUB (press ESC on starting laptop) and appears a list of kernel/ubuntu 22.04 you can choose. There is also ubuntu 22.04 kernel 5.15 Recovery Mode.
    – Damark
    Oct 29, 2022 at 11:32

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