tech.inc USB-C to HDMI adaptor reliability issues

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Starlancer

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#319411 23-Apr-2025 08:33

I got this adaptor for outputting video from the Apple laptop's USB-C port to a TV's HDMI port but some of the time the video output just refuses to appear on the TV screen. Don't know why this happens every now and then. So I regard this as a reliability issue. Maybe the adaptor has a poorly manufactured or faulty pins in its USB-C plug? What options do I have for resolving this issue by Thursday next week (01 May)? The product has a two year warranty.

Thanks in advance for your assistance with resolving this issue.

k1w1k1d

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#3366693 23-Apr-2025 10:43

Take it back to where you bought it for warranty.

Mrcutiepatootie

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#3366701 23-Apr-2025 10:54

I bought a tech inc. product (usb-c to microUSB with lightning and usb-c end adapters) on a whim about a year ago for about $20, and holy shit that thing never worked right out of the box. The end ports would get really hot, close to burning temp. The adapters were also a struggle, and felt like they're about to break everytime its put on or off.

I honestly expected better quality for such a generic product, especially for that price. So lesson learned and just buy the quality items, even for the small stuff like this because the expectancy difference is significant.

nztim

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TEAMnetwork

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#3366710 23-Apr-2025 11:33

They are certified warehouse garbage

Get startech or alogic cable like this CDP2HDMM2MH

Any views expressed on these forums are my own and don't necessarily reflect those of my employer.

Starlancer

12 posts

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#3391851 8-Jul-2025 12:18

Thanks, bought the USB-C to HDMI CDP2HDMM2MH adapter and it works well :).

However, had a major piece of misfortune last month. My MacBook’s screen was water damaged on the night of Thurs 5?June when torrential rain fell down that night which must have penetrated my briefcase and got into the screen’s internal electronics.

Now the internal screen won’t show anything.

For some time I was able to show the laptop’s output via that reliable adapter to my TV till I inadvertently turned on mirroring which stopped output from showing on my TV to my frustration. What can I do about that? Try showing output on another large monitor? Or something else?

I was told that there’s a $500 excess under my contents policy to repair or replace the internal screen.

I need to be able to show PowerPoint slides (I have the PowerPoint slideshow files) to students on a large monitor when I resume community education teaching work in the week starting Mon 21 July.

What options do I have for getting suitable hardware to show the PowerPoint slideshows on a large monitor again? Leasing a PC laptop? Renting it? Borrowing it? Getting the repair of my MacBook screen completed? Photograph the slides with my iPad, connect it to a large HDMI compatible monitor with a suitable output cable? The USB-C to HDMI adapter I have won’t plug into my iPad.

Thank you for any help you can give me there.

gzt

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#3391877 8-Jul-2025 14:07

Isn't there a hotkey you can use to change the screen mode?

froob

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#3391900 8-Jul-2025 14:48

gzt: Isn't there a hotkey you can use to change the screen mode?

Command - F1 swaps it between mirroring / extending on my MacBook Air.

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nztim

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#3391970 8-Jul-2025 15:34

What part of the country are you in?

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EviLClouD

311 posts

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#3391972 8-Jul-2025 15:36

I have one of these to connect the macbook to a monitor and sometimes tv and it’s worked perfectly

https://www.kmart.co.nz/product/usb-type-c-to-hdmi-cable-3m-43317264/

Starlancer

12 posts

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+1 received by user: 6

#3404051 16-Aug-2025 14:15

I am using my old laptop to output the slideshow on the classroom TV for my students to see but the laptop is pretty slow and old. Am I able to rent or lease a faster laptop for the rest of this year, till I get a new fast laptop? If so, where are reliable suppliers of rental or lease laptops in Auckland? That city is where I live

Starlancer

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#3405046 16-Aug-2025 14:32

Also, is there free or cheap Internet security software I can install on my old laptop to use until I get a new, lease or rental laptop that's fast?

gzt

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#3405060 16-Aug-2025 16:40

Starlancer: I am using my old laptop to output the slideshow on the classroom TV for my students to see but the laptop is pretty slow and old.

If that's all it's doing a $500 chromebook should handle it. Or a secondhand version of the same thing. N4000 or later. Not even slow presuming you are presenting from Google Slides or similar imported there. Check the supported date for update life.

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Starlancer

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#3405208 17-Aug-2025 16:18

gzt:
Starlancer: I am using my old laptop to output the slideshow on the classroom TV for my students to see but the laptop is pretty slow and old.

If that's all it's doing a $500 chromebook should handle it. Or a secondhand version of the same thing. N4000 or later. Not even slow presuming you are presenting from Google Slides or similar imported there. Check the supported date for update life.

I'll see if my old laptop can still do the displaying of slides from its Powerpoint software. The software crashes if I try to do too much.

Later on, I'll look at upgrading to a faster, more powerful laptop to do this stuff and more like MS Teams.

gzt

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#3405444 18-Aug-2025 22:01

Import the slides into Google Slides and avoid the software entirely.