I have several Lenovos. I have used them without problems up to Ubuntu Mate 20;04 lts.
A few days ago I upgraded my Ubuntu Mate 20.04 lts to 22.04 lts, following the announcement on "Software & Update".
My Ubuntu mate became 22.04lts. But I had a problem. Virtualbox does not work on Lenovo X201, while it works without problem as before on Lenovo x220.
I hope that on X201 too, Virtualbox will work as before.
Please let me know the cause of this difference and the way fix to Virtualbox on x201.