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With inspiration from this question, I purchased this docking station to be used with my new tablet (Samsung Galaxy Tab A (2017), running Android 7.1.1):

StarTech HDMI and DVI/VGA Dual-Monitor Docking Station for Laptops - USB 3.0 (USB3SDOCKHDV)

Top:

overview

Rear: rear inputs

Side: side inputs

The docking station has multiple inputs (DVI, HDMI, VGA, USB 3.0), and I am able to connect the docking station to the Samsung tablet via a USB 3.0 to USB C adapter. The docking station does not explicitly support Android, but I thought I would give it a try.

I know that the docking station is working -- to some extent, at least -- because if I connect a USB mouse to one of the USB 3.0 ports, I am able to access Android with the mouse.

However, when I connect a VGA monitor to the docking station, nothing appears on the monitor. Likewise, when I connect an HDMI monitor to the docking station, nothing appears on the monitor.

Is there any way to "tell" the Android OS to output its screen to the docking station, via the USB C output on the tablet? In other words, before I return the docking station to the retailer, I want to make sure that there is nothing else I can try.

When I go to Settings > Display, I don't see any option "Export screen to external display via USB C output" or something like that. Is there any such option?

display

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    To output video via USB the device itself has to support MHL, which most devices don't. – Andy Yan Jan 9 '18 at 0:59
  • @AndyYan Thanks. How can I tell if my device supports MHL? – Andrew Jan 9 '18 at 15:56
  • 1
    Just look the device up - I don't think there's a reliable app for checking on-device. – Andy Yan Jan 10 '18 at 0:48

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