[Ubuntu-x-swat] [Bug 1768976] Re: Ubuntu 18.04 is overheating after upgrade from 16.04
Aaand it's back again. Overheating. No real load. Hot as it can get. -- 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
[Ubuntu-x-swat] [Bug 1768976] Re: Ubuntu 18.04 is overheating after upgrade from 16.04
And another observation. After booting the old kernel several times.. the 4.15 kernel starts without problems also, currently it works without the heat and performance problems. I did not change anything. I have no idea what happened there. Weird. -- 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
[Ubuntu-x-swat] [Bug 1768976] Re: Ubuntu 18.04 is overheating after upgrade from 16.04
Well, the new 4.15 kernel has that problem. I still have a 4.4 kernel as alternative, which does not have that problem. Something in between has gone bad. This does not really narrow it down enough to know the cause, but it's not the drivers or the hardware or other software alone. -- 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
[Ubuntu-x-swat] [Bug 1768976] Re: Ubuntu 18.04 is overheating after upgrade from 16.04
I want to add one more info, since most people might focus on the gpu or drivers. The gpu temp might only indirectly show cpu temps for my thinkpad, since they both are connected to the same heatpipe. Hot cpu => warm gpu. Does not mean gpu is in use. -- 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
[Ubuntu-x-swat] [Bug 1768976] Re: Ubuntu 18.04 is overheating after upgrade from 16.04
I want to add an observation. I upgraded from 16.04 to 18.04 and the first boot already was sluggish and the mouse pointer is slow. First I suspected a baloo_file process to be the cause. It's not. I noticed the fans of my thinkpad spin up. I saw no load on the cpu (as normal user). Also the disk io is low. So what is causing this? Then the sensors still show high temps and it got hot. I noticed also the gpu temp is hot. Then i disabled wayland and rebooted. Still it is slow. Then i booted only into recovery root shell and noticed only as root is a kworker/u16:0 process visible, which produces high load. So now I suspect some other kernel level process is out of control, but I don't know what this kworker process belongs to.. -- 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
