Adobe Photoshop CC and niche configurations.
At first, Photoshop worked fine.
After an upgrade, I started having the weirdest performance issues. It would seem to take forever to start up, but if I brought up the Task Manager, it would instantly jump forward to normal operation. The same would happen for dialogue boxes, including Preferences. Drawing a marquee would seem to stall, then eventually work... and then dragging anything around would happen at about one frame per second.
I won't go through the many, many steps I took to squash the problem, but here's what works:
- showing on notebook PC's built-in display
- showing on extended desktop on external monitor via HDMI
- showing on extended desktop on external monitor via USB→DisplayPort adapter
Here's what doesn't work after the update:
- showing on extended desktop on external monitor via USB→DisplayPort adapter while variable-rate refresh (GSync and the like) is enabled
At least I found an easy fix; I could have been banging my head on that one for a long time!
