Hi!

I have C940-14IIL, running under Fedora 32 and I am very pleased by this
laptop. Everything is OK, except shutdown/reboot (workaround
i915.enable_psr=0 kernel option), fingerprint reader (do not care) and
overheating shutdown.

I have resolved my overheating problem by installing the last version 2.2 of 
thermald from Github and automatically creating config bydptfxtract 
(https://github.com/intel/dptfxtract).
The bydptfxtract create 10 different thermal-conf.xml. I have tested all of 
them and I am attaching the most successful of them. 

I did a stress test with full load for 10 minutes. Following is the uptime 
output:
14:47:46 up 18:57,  1 user,  load average: 8.49, 9.10, 7.25

During the test temperature vary around 75-80 degree - something that I
could not imagine before installing the thermald. One virtual machine
and a minute of compilation or R calculations would certainly cause
overheating shutdown.

Actually, as far as can explain the results, the thermald do a CPU
scaling of the CPU speed in range 2.5-2.8 GHz - about 1 GHz below the
maximum speed - something that I definitely agree. Scaling is done after
the rise of the temperature and I do not experience any inconvenience,
troubles or interruptions with the lower speed.


** Attachment added: "Thermald conf file"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1873083/+attachment/5387703/+files/thermal-conf.xml

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https://bugs.launchpad.net/bugs/1873083

Title:
  Lenovo Yoga C940 frequently does thermal shutdown

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