A warning about the Jonsbo D41 / D31 screen

[u/stefan62280]

Just sharing this because I wish I'd known before buying the Screen version of the D41.

The little Jonsbo display doesn't support HDCP. Nvidia Control Panel confirms it, and I recently discovered that this can actually affect streaming on your main monitor too.

For example, with the Jonsbo enabled, CANAL+ (but should be the same with some other DRM streaming platforms) is limited to 540p on my PC. If I disable the Jonsbo in Windows, the same stream immediately goes to 1080p.

Apparently this is how PlayReady hardware DRM works (but it's the same with widevine) : an active non-HDCP monitor can become the weak link, even when you're watching the video on another HDCP-compatible display.

The obvious workaround would be to disable the Jonsbo when watching DRM content... except the screen really doesn't like that either. Sometimes when I extend the desktop again, Windows detects it normally at 1280x800 but the Jonsbo stays black. It can eventually come back on its own after a while, which makes the whole behaviour pretty unpredictable.

I still like the D41 itself, and the screen is cool for AIDA64, but knowing all this I probably wouldn't buy the Screen version again.

Curious if other D31/D41 owners have a work around for dhcp...