Same problem here. Ubuntu 18.04.3 LTS I tried kernels 4.15, 5.0 and 5.3 and the problem persists. With default installation parameters CPU temperatures goes above 95° very easily.
The only way I managed to keep the CPU temp down is: a) setting GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_pstate=disable" and then choosing "PowerSave" mode in cpufreq b) Installed laptop-mode-tools Edited file: /etc/laptop-mode/laptop-mode.conf It changed the file /proc/sys/vm/laptop_mode to 2 After that no significant changes in temperature when moving from AC to Battery Attached hardinfo_report.html run after the doing the procedures above mentioned ** Attachment added: "Output of hardinfo command" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1768976/+attachment/5296370/+files/hardinfo_report.html -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-nouveau in Ubuntu. https://bugs.launchpad.net/bugs/1768976 Title: Ubuntu 18.04 is overheating after upgrade from 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1768976/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
