I have traced it to int3403_thermal module. If I do rmmod int3403_thermal - the thermal_zone3 goes away an no thermal shutdown is happening. I can use it as a workaround - but is it dangerous for the HW?
https://github.com/torvalds/linux/blob/master/drivers/thermal/intel/int340x_thermal/int3403_thermal.c >From what I see in the source, it is probably related to battery or charger or both. So I guess thermald should take this sensor into acccount when throttling? When I quickly modprobe int3403_thermal back, the full output is here (it is seen that temp is 79C, which is really close to the critical 80C): thermal_zone3$ grep . * available_policies:power_allocator user_space step_wise bang_bang fair_share grep: emul_temp: Permission denied integral_cutoff:0 k_d:0 k_i:0 k_po:0 k_pu:0 offset:0 policy:user_space grep: power: Is a directory slope:0 grep: subsystem: Is a directory sustainable_power:0 temp:79000 trip_point_0_hyst:2000 trip_point_0_temp:0 trip_point_0_type:passive trip_point_1_hyst:2000 trip_point_1_temp:0 trip_point_1_type:passive trip_point_2_hyst:2000 trip_point_2_temp:80000 trip_point_2_type:critical trip_point_3_hyst:2000 trip_point_3_temp:75000 trip_point_3_type:hot trip_point_4_hyst:2000 trip_point_4_temp:65000 trip_point_4_type:passive trip_point_5_hyst:2000 trip_point_5_temp:60000 trip_point_5_type:active trip_point_6_hyst:2000 trip_point_6_temp:50000 trip_point_6_type:active trip_point_7_hyst:2000 trip_point_7_temp:40000 trip_point_7_type:active type:SEN4 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1873083 Title: Lenovo Yoga C940 frequently does thermal shutdown To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1873083/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
