On Thu, 25 Mar 2021, Bob Tracy wrote: > > Everything worked as well as it's going to for kernel versions up > > through v5.10.0. When I boot on v5.11.0, "lightdm" starts, the screen > > goes blank as usual, I get a mouse pointer as usual, and shortly after > > that, the system locks up solid (completely nonresponsive except for > > being able to ping it -- can't login remotely). Recovery is via the > > reset switch at that point :-(. > > (...) > > Same results for 5.12.0-rc4 kernel. I think the only feasible way of determining what has happened here is that you track the offending change down by bisecting the upstream kernel repository with `git bisect'. Once you have it someone may help, either the author of the change, or the relevant maintainer, or someone else at <linux-kernel@xxxxxxxxxxxxxxx>. Maciej
