I need to update this issue. Version 2.4.8 of thermald does NOT fix this issue. This is not a hardware issue per se because under Windows, this throttling does not occur. (Under Windows, the machine is able to run a bit hotter and without throttling.) I speculate that Dell has written drivers for Windows that are able to call API's into the Dell BIOS and management hardware to manage thermal, power, and fan attributes, and Dell has chosen to not write kernel drivers, update existing kernel drivers, or even just provide API documentation so that someone else in the Open Source community can write those drivers. My hope is that Canonical, with its relationship with Dell, will be able to get this information so that SOMEBODY (either within or outside of Canonical) is able to fix this problem.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to thermald in Ubuntu. https://bugs.launchpad.net/bugs/1958328 Title: thermald package 1.9.1 causes CPU throttling problems Status in thermald package in Ubuntu: In Progress Bug description: There have been many reports of improper CPU throttling on Intel CPUs to the point of making machines completely unusable. See for example: https://www.dell.com/community/Latitude/Latitude-5420-7420-7520-CPU- Throttling-Issue-on- Linux/td-p/7959019/emcs_t/S2h8ZW1haWx8dG9waWNfc3Vic2NyaXB0aW9ufEtZS09TQk43Qk02UjY0fDgxMjgyMDl8U1VCU0NSSVBUSU9OU3xoSw The latest thermald version, 2.4.8, does not have this issue. Thermald versions prior to 2.4.8 do have this issue. See: https://www.dell.com/community/Latitude/Latitude-5420-7420-7520-CPU-Throttling-Issue-on-Linux/m-p/8128282/highlight/true#M39400 The version of thermald should be updated to 2.4.8, or the code that fixes this issue in 2.4.8 should be backported to the thermald versions in current Ubuntu versions. https://github.com/intel/thermal_daemon/tree/v2.4.8 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1958328/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
