Hi Yves-Alexis, I tested in Buster with kernel linux-image-5.3.0-1-amd64 from unstable and "modesetting" DDX: it appears to be fixed. Hardware is Intel Iyv-Bridge CPU with HD4000 GPU. The workarounds like using "intel" driver or "xset s off" are no longer required - great since the intel driver causes other problems.
Would be great if that fix could be applied to the standard Buster kernel 4.19.0, so users will not have to use buster-backports repo.
