Major update -------------- I've discovered that by switching to the open source Nouveau display driver the problem disappears, even with the newest Ubuntu 5.13.0-20 kernel.
The problem was related to the "nvidia-driver-470" for my video card: GM107M [GeForce GTX 950M]. The older 5.11.0-37 Ubuntu did not had this problem, because simply there were no Nvidia drivers built by DKMS for it. Probably, I switched to the Nvidia proprietary driver after upgrading to Ubuntu 21.10, so the older kernel remained without the Nvidia modules. I'm not sure at the moment if this still a bug for this place. I'll leave this decision to you guys. At least, it will be useful for other people with the same issue. ** Summary changed: - Laptop fans spin at ~50% w/o CPU load with kernel 5.13 + nvidia-driver-470 makes fans spin at ~50% w/o any load -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1947614 Title: nvidia-driver-470 makes fans spin at ~50% w/o any load To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1947614/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
