Hi Gabriele, Thank you for the bug report and the help with the investigation!
I apologize that this bug was marked as Expired; this is done by an automatic process after a period of inactivity. Somehow this fell through the cracks of our triage process, but now we're on it again :-). Thank you for following up on Paride's request for further tests. I'm wondering here: I know that the 'sensors' command lets you specify which chips you want to get the temperature for, and given that this problem seems to happen every time you execute the command, then I think it's worth trying to pinpoin which chip is causing the problem here. Could you please try to run the command several times, specifying the different chip names each time, and see what happens? Maybe there's nothing to it, but we never know. Another thing I was going to ask you is this: based on your comments, it seemed to me that you were able to reproduce this problem not only in Ubuntu, but also in other distributions. Is that correct? If it is, do you think you could test a pristine Linux kernel (from https://kernel.org)? If the bug reproduces with it, then I would recommend opening a bug report against the upstream Linux project. For this specific bug, I think it's worth adding the Ubuntu Linux kernel package and seeing what the kernel folks have to say. Maybe they can come up with other things you can try to determine what's going on. I'm setting this bug status back to New and adding the Ubuntu Linux package to it. I'm also going to subscribe myself to this bug so that we don't miss any more updates from you. Thank you. ** Changed in: linux-signed-hwe-5.8 (Ubuntu) Status: Expired => New ** Changed in: lm-sensors (Ubuntu) Status: Expired => New -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-amdgpu in Ubuntu. https://bugs.launchpad.net/bugs/1910562 Title: Fans switching on and off every 10 seconds after update to kernel 5.8.0-34 Status in linux-signed-hwe-5.8 package in Ubuntu: New Status in lm-sensors package in Ubuntu: New Status in xserver-xorg-video-amdgpu package in Ubuntu: Invalid Bug description: After updating via apt dist-upgrade from kernel 5.4.0-59 to kernel 5.8.0-34 the fan on my machine started switching on (for an instant) and off every 10 seconds even when idle with CPU at 48/50°C. Switching back to previous kernel solves temporary the problem, i.e. fans are always off with light desktop work. The new behavior is really annoying and I guess not healthy for the fans. I'm on latest Dell bios, with every other package updated. Di something in the thermal policies change between those two kernels? Is it possible to go back to previous behavior ? Thanks in advance for help Machine: Dell Precison 7540, intel i7-9750 ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.8.0-34-generic 5.8.0-34.37~20.04.2 ProcVersionSignature: Ubuntu 5.8.0-34.37~20.04.2-generic 5.8.18 Uname: Linux 5.8.0-34-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.14 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Thu Jan 7 17:14:54 2021 InstallationDate: Installed on 2020-05-06 (246 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) SourcePackage: linux-signed-hwe-5.8 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.8/+bug/1910562/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
