As per the attachment, I can't really reproduce the problem in my bionic chroot using the 390 driver from the archive, and Linux 4.15.0-178.187 from the CKT PPA.
As per the attachment, I can't really reproduce the problem in my bionic chroot using the 390 driver from the archive, and Linux 4.15.0-178.187 from the CKT PPA.