ViewSonic VGA display not working with Acer Aspire TC-1780-UA92 Desktop,USB-C and HDMI adapter fails

SSeattle
SSeattle Member Posts: 1 Newbie
edited December 18 in Aspire and Veriton Desktops

I have a ViewSonic VGA display. I have an adapter to USB-C and this works with my Chromebook. I doesn't work with my Aspire. So I got a Hdmi adapter and that doesn't work either.

Everything else is set up but no display…any ideas?

[Edited the thread to add issue detail to the title]

Answers

  • Larryodie
    Larryodie Member Posts: 1,719 Community Aficionado WiFi Icon

    Does your computer have a VGA output socket, if not then you'll most likely need to buy a new monitor with HDMI. Very cheap and worth every penny to have the latest display.

  • billsey
    billsey ACE Posts: 34,536 Trailblazer

    The TC-1780 models do not support DP Alt Mode on the USB-C port, that's something more likely found on a laptop. The HDMI port on the TC-1780 should work though, unless you have a GPU card installed. If you have a card in that GPU slot then the onboard HDMI is disabled and you have to use a port on the card instead. Are you sure the HDMI to VGA adapter works?

    Click on "Like" if you find my answer useful or click on "Yes" if it answers your question.
  • StevenGen
    StevenGen ACE Posts: 12,451 Trailblazer
    edited 1:19AM
    https://community.acer.com/en/discussion/717766/viewsonic-vga-display-not-working-with-acer-aspire-tc-1780-ua92-desktop-usb-c-and-hdmi-adapter-fails

    The Aspire TC-1780 desktop has a HDM1 @ version 2.0b and HDMI 2 @ v1.4b both ports Resolution (Monitor QVL) is at max 3840x2160@60Hz. The front panel USB-C is noy=t a display out type port like Thunderbolt port so a USB-C hub plugged into that front USB-C port will not extract an image to your ViewSonic VGA display, the only ports that will extract a display is the HDMI ports. If you have the 500W PSU consider fitting the optional ARC A380.6GB GDDR6.96B.1750MHz gpu card - Acer part #: DA.2K611.001 that Acer fitted to the TC1780 desktop as that card has a DP port that you could get better resolution out of with higher refresher rates than the HDMI 60Hz port. Good luck and hope this helps you out some more.

    Or use a gpu card like the ASRock Arc A380 Challenger ITX 6GB OC, as this works on a 500W PSU and this gpu has 1 x HDMI 2.0b port and 3 x DisplayPort™ 2.0 with DSC ports that could be more suitable for your external monitor.

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    If this answers your question and solved your query please "Click on Yes" or "Click on Like" if you find my answer useful👍

  • Larryodie
    Larryodie Member Posts: 1,719 Community Aficionado WiFi Icon

    The monitor also should have a menu setting to go to HDMI input.

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