A while ago, there were problems with X11+GDM+fglrx/Catalyst. So, I switched to lightdm. That was working fine for the past two years or so. After upgrade to Fedora 24 two days ago, I now have light-locker. I actually was using that in F23 on my netbook & VMs, so I thought that was okay.

But, on my desktop, which has two AMD GPUs (and have been working pretty well since February), I noticed many jobs were failing. What's odd is that they seem to run fine when I watch them. I mean, I pick a failed task, look it up my reported tasks to see it ran for 4 seconds and failed with errors about no GPUs. But, when I watch active tasks in the manager, there are running GPU tasks and some have run for an hour, already. Plus, are even some reported tasks that show successful completion.

So, I put 2+2 together and figured that most tasks were breaking, but only the ones that completed while I was logged in were succeeding. I haven't checked times carefully, but I think that's what happened.

So, it's light-locker. When light-locker switches virtual-consoles, I think GPU jobs are breaking and cannot start.

Anybody else seeing this?