Same problem here: Lenovo ThinkPad T410s Intel i5 (1st gen, 2.53Ghz) NVidia NVS3100M graphics
Kernel 4.4 in 16.04 idles at 35°C - 37°C (fresh, high-quality thermal paste applied a week ago). Kernel 4.15 in 18.04 idles at 48°C - 52°C. Only Dropbox and Megasync in the background; htop shows very low CPU use from these 2 apps. Overall system CPU usage (idle) doesn't go above 1.3% - 2% range. Same workflow from 16.04 + kernel 4.4 runs 20°C hotter in 18.04 + kernel 4.15. Regular operation with Chromium and Emacs drives temperature to 76°C - 80°C. Critical temperature is 95°C before shutdown. This is running really hot. -- 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 : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp

