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Brainiac80
Paper Tape
Posts: 4
Registered: ‎11-11-2016
Location: SE
Views: 10,827
Message 1 of 8

Yoga 910 4K video out

Hi

 

I'm still getting used to this new thing with external monitors connected via USB type C. I'm having problems finding the information, even from Lenovo. Today I tried to connect via HDMI to an external monitor, using an adapter (USBC male to HDMI female) but it did not work. I got some error message saying I was trying to use DisplayPort but that it did not work, perhaps because of the cable. Indeed it was an HDMI cable but I was hoping that would work. So does this mean I can never connect via HDMI to anything? I must always go for a DisplayPort connection?

 

My overall goal is to use an external 4K monitor at 60 Hz. Making any kind of connection to an external display would be a good start. Good heavens, all these adapters and connectors nowadays...

 

Cheers!

Lenovo Employee melon
Lenovo Employee
Posts: 58
Registered: ‎10-27-2016
Location: CN
Views: 10,686
Message 2 of 8

Re: Yoga 910 4K video out

I'm not sure if this problem has been solved.
Here's my suggestion.
1. pls check if usbc to usba works fine on this port.
if yes you can try apple usbc adapter or another monitoer.
if no, you may need to exchange the device. May be there's HW connection issue inside.
Brainiac80
Paper Tape
Posts: 4
Registered: ‎11-11-2016
Location: SE
Views: 10,685
Message 3 of 8

Re: Yoga 910 4K video out

It seems like the problem disappeared when I found the right video adapter. The best is to use a cable with USB-C and DisplayPort males and connect the display directly. Any HDMI connection seems to give only 30 Hz. Thanks anyway!

Lenovo Employee melon
Lenovo Employee
Posts: 58
Registered: ‎10-27-2016
Location: CN
Views: 10,681
Message 4 of 8

Re: Yoga 910 4K video out

So glad to hear that this has been solved. ^—^

Yes, 60hz canbe reached by DP cable.

Only a few HDMI adaptor can reach 60hz under 4k resolution, it depends on the HW design of the adaptor.

 

Maka111
Paper Tape
Posts: 4
Registered: ‎05-26-2016
Location: US
Views: 10,131
Message 5 of 8

Re: Yoga 910 4K video out

For the reference purpose. USB-C to HDMI Adapter from CableMatters SKU 8115981610 works just fine on my Yoga 910 connected to 4K. Although, I do not know how to determine whether it's 30 or 60 Hz, picture is vivid and steady.

zylstra
Fanfold Paper
Posts: 9
Registered: ‎06-06-2017
Location: US
Views: 7,417
Message 6 of 8

Re: Yoga 910 4K video out

melon, which HDMI adapters can reach 60hz under 4k resolution?

kukoc
Ctrl-Alt-Del
Posts: 5
Registered: ‎06-28-2017
Location: US
Views: 6,789
Message 7 of 8

Re: Yoga 910 4K video out

Brainiac80 -- Can you share the brand name of the cable you used? The one I'm trying isn't working.

 

Thanks!

Brainiac80
Paper Tape
Posts: 4
Registered: ‎11-11-2016
Location: SE
Views: 6,772
Message 8 of 8

Re: Yoga 910 4K video out

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