Vertical line there is a green vertical line just left of centre in the display, with or without an input

Vertical green lines on tv screen - Samsung 60" LED TV ... - iFixit

https://www.ifixit.com > Answers > View > Vertical+gre...
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Why does my TV have green lines on the screen? - Quora

https://www.quora.com > Why-does-my-TV-have-gree...
Sept 17, 2016 - With the green always on, it suggests that the cable the connects to the panel may have a bad line. Whether or not the cable has moved a bit to cause a short ...
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How to Get Rid of a Thin Green Line on an LCD - ItStillWorks

https://itstillworks.com > rid-thin-green-line-lcd-36231
A line of solid color indicates stuck pixels within your LCD. ... Your LCD produces specific colors and images by altering the colors of the thousands of tiny ...

5 tips to get rid of stripes on your TV screen - Coolblue

https://www.coolblue.be > advice > tips-for-removing-li...
Dec 18, 2021 - You can read 5 tips on removing horizontal or vertical lines on your TV screen here.

Vertical green line on Samsung LED TV : r/hometheater - Reddit

https://www.reddit.com > hometheater > comments > ve...
Apr 18, 2016 - It is most likely dead pixels within the monitor itself. You can try a stuck pixel video on YouTube that will flash colors or even give you a ...

T-con is not the problem. The main board is.

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Check and replace its back-light inverter board. Contact any service technician. If you wish to get some details, check the site linked here. Surf the site in "MOSAIC" view. It will make surf easy. Surf the site with patience.
http://electronicshelponline.blogspot.com/

If you've ruled out that the source you're displaying from is good, I would contact vizio for a warranty repair

So your HDMI inputs work fine without the vertical line?

If every input displays like this, there is a high chance that the problem is in the TV panel itself.

I had something similar with a Sony TV, except the lines were horizontal and the panel was replaced for free under warranty.

There are mainly two reasons for this fault. Circuit board, and panel. Visit the site named 'Electro-help' for more details. Click this link. View it in "Timeslide" or "Flipcard" option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. It will make search easy. There are more than 1300 posts to different brand TVs now. Pull up older posts there.

Likely a crack in your cable - try a new cable if possible (or borrow one) - other than that its likely a fault in your monitor.

*** 91 park ave with delco bose =

black = ground
dark green = lights on input
grey = panel lights
pink = on input
yellow = power input
orange = battery power input

nca = shield ground
tan = left fr spkr +
orange/black = left & right spkr -neg
lite green = right fr spkr +

nca = shield ground
dark blue = right rear spkr +
dark green/yellow = right & left spkr - neg
brown = left rear spkr +

purple/white = display dim output
pink = vehicle speed input
-----------------------------------------------------------------------
**** 91 park ave without delco bose =

purple/white = display dim output
pink = vehicle speed input

grey = left front - neg
tan = left front + pos
dark green = right front - neg
light green = right front + pos

black = ground
dark green = display dim signal
grey = panel lights
pink = power antanna
yellow = ign input
orange = battery power
light blue = right rear - neg
dark blue = right rear + pos
yellow = left rear - neg
brown = left rear + pos .

there YA go

If it still under warranty, no cost will be there, but if its out of warranty, you have to pay to Sony (might be they give you some discount) because its problem in LCD Panel.