Hello,
I'll try and answer everything as you touch quite a few things.
1. Brightness and contrast
DisplayLink drivers do NOT change brightness, contrast or colours. Either you have it with an add-on app, or on the monitor, but you won't have it in our drivers.
2. Surface Dock
You'll need to report that to Microsoft. I've personally experienced issues on USB with using the Surface Book and Surface Dock. I'm not the only one. If the device cannot enumerate on the bus, like I had, this isn't a DisplayLink driver issue but this is linked with the USB3 Host Controller and the Surface Dock interfering. Dropping from the bus is the same, it technically cannot be our host drivers.
You have a few options to try: disconnect all, remove our drivers, then update the firmware of your Surface, make sure your Intel graphics drivers are also updated, then reinstall us. The other option is to get out of the Insider Fast Ring and get a version Microsoft supports.
3. Window Insiders Fast Ring
You use a very special version of Windows. Microsoft themselves don't support it.
It has numerous issues reported on blogs, as expected. We don't yet support that version and you should have had a message telling you so. We will support it before Microsoft starts to release it to other people than the Fast Insiders Ring. Until then, it may break at any time.
4. USB Monitor Blinking
The monitor you use, designed and manufactured by AOC, is drawing all its power from the USB port (this includes the chip we make, the backlight and LCD panel).
The blinking you are experiencing is most likely due to a too high inrush current at startup for the USB port. This means your monitor is disconnected, then restarts and loops like that. That's why when you plug it on the external adapter, it works properly. Once running, you might even be able to disconnect it from the power adapter and see it would keep running. This behaviour depends on the tolerance of each port, but also depends on what how monitor manufacturer designed their product.
Kind regards,
Alban
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