Comment 11 for bug 1973434

For what it is worth, I am experiencing what seems like the exact same issues as Henning, on a Thinkpad T470s after upgrading from 21.10 to 22.04. I am pretty confident there were no problems at all with 21.10, now my whole system and especially things like videos running in chrome gets extremely lagging after the system has been running for a few hours. I tend to do daily reboots just to have the system in a useable state.

I am on 5.15.0-37-generic and have also applied the IOMMU fix without any noticeable effects.

A workaround is strongly needed. Please instruct me if there is any information I can provide from my side/any things to try out.