Games, my secondary monitor, and other GPU-using applications show very intrusive artifacts that look like distorted parts of the displayed geometry rapidly changing position. These will show up on screenshots, such as this example from Black Mesa, although the fixed nature of the screenshots doesn’t do justice to the headache-inducing flickering that is produced:
Observed minor versions of this once and a while over the last few weeks, but it has progressed to the point where games are unplayable just in the last day or so. At this point anomalies also began appearing on my second display, and could be observed in the ‘control center’ preview window. The preview actually displays normally until I attempt to run something graphics-intensive, at which point anomalies appear and remain until a few minutes after the graphics-intensive application is stopped.
Noticed that Minecraft, which runs based on OpenGL, works perfectly and all the games I have been having trouble with use DirectX. Possibly this is then a DirectX issue? Windows and my graphics driver (Nvidia GTX 1060 embedded) are up to date.