01-10-2018 08:12 PM
Hello, I used a Belkin USB-C to HDMI (4K/60Hz) adapter in series with an HDMI to VGA adapter to extend my workspace. I used an old monitor that came with a Dell Desktop ages ago. Early this afternoon, things worked perfectly. With the laptop and the monitor on, I plugged in the adapter and initially the combination came up "duplicate." I opened the F10 menu and selected "extend" and worked non-stop for about 2 hours. I had old documents open on the laptop display while I authored new documents on the extended display.
Before the 910, laptops I used had HDMI ports to which I plugged in the HDMI VGA adapter and I never thought much about how the combinations worked (as they never failed).
After dinner, I prepped the system to show recorded video on the external monitor for an online class I'm taking so I could use the laptop display to search for information, images, etc when recorded lessons are vague/incomplete. Then I went back to parenting.
When I came down after putting the kids to bed, the laptop had gone to sleep.
When I woke the device, the external monitor reported "no signal detected" and the display on the laptop kept flickering. This is a new experience for me.
Unplugging the USB C adapter stopped the flashing.
I don't know how to return the system to whatever was working before the sleep cycle. So I started searching for others' wisdom and experience. I read other threads that seem to say, turn everything off, plug in the adapter, turn everything on again and go.
Following that general plan isn't working now.
Does anyone have:
1) an explanation for why things do work when USB C goes to HDMI to VGA (which I experienced today).
2) an explanation for why this working combination failed.
3) a suggested method to fix/assemble this system to work again.