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106 Posts

09-08-2009

CA

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Re: Yoga 920 and Thunderbolt Dock

2018-01-24, 0:55 AM

If you are running 1080p screens you'd been so much better off with https://www.accellcables.com/products/displayport-1-2-to-3-hdmi-multi-display-mst-hub something like this + a plain USB C to DP converter (I like the Xiaomi one) ... your CPU will suffer feeding that DL chip.

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5 Posts

01-23-2018

US

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Re: Yoga 920 and Thunderbolt Dock

2018-01-24, 2:28 AM

My understanding was that the 920 could only run 2 displays off of the USB-C.

 

Also, you say plain USB C to DP converter, but I want to run power and all peripherals through the one cord because I use the Yoga as a tablet for controlling presentations and using OneNote while the other three screens are my traditional 'desktop' and I need to be able to move around with the Yoga freely.

I ran Novabench with a couple of set ups, and there is a definite loss of CPU capability when the USB 3.0 dock is plugged in, about 15% or so, which is concerning, but I don't think it will affect my productivity very much. I had a very similar set up with a Flex 5 1570 which had the same CPU but 16GB of RAM and it did everything I wanted and more with ease. So far I'm having no issue with this set up, but if there is a way to do it better without such a big hit to my CPU I'd love it. Provided it didn't cost twice as much in the end . . .

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106 Posts

09-08-2009

CA

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  • Message 53 of 97

Re: Yoga 920 and Thunderbolt Dock

2018-01-24, 3:15 AM

> My understanding was that the 920 could only run 2 displays off of the USB-C.

 

There's a reason I bought the domains usbc.**bleep** (LOL it bleeped out my domains! The title of the site is USB C: What They were Fuming, guess the domain from that) and dualmonitors.**bleep** and I will write this confusing mess up there. In short, you are more wrong than right but you are not exactly either :P Why do you think the domain is usbc.**bleep** :P ? In short, you can use the physical USB C port in either DisplayPort alternate mode where you can get a single DisplayPort signal using a relatively simple and cheap adapter or you can use it in Thunderbolt 3 alternate mode where you can demultiplex two DisplayPort signals with much more expensive devices. But. A single DisplayPort signal can drive multiple monitors within the boundaries of how many monitors can the GPU drive (the Intel IGP can do three) and how much bandwidth that DP signal has (Startech, the purveyor of massively overpriced adapters provides a super-duper handy bandwidth table for free), you just need an appropriate device which directs the right portions of said signal to the right monitors, that's what I linked you above. If you had a more capable GPU you could do four but Intel is not yet there.

 

 

 > Also, you say plain USB C to DP converter 

 

You can run power as well and even get a couple USB 2.0 ports off such a converter.

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5 Posts

01-23-2018

US

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  • Message 54 of 97

Re: Yoga 920 and Thunderbolt Dock

2018-01-24, 5:52 AM

I see your point, but I'd be out my USB 3.0 and all three monitors would be on the Intel graphics card rather than the touch display and one monitor on the Intel and two monitors on the Trigger 6 card in the dock. (edited for clarity)

 

I plugged a more powerful power supply into my j5create dock and the CPU performance drop is now less than 5% from performance without the dock plugged in, so I'm feeling pretty good about this. Also, one of my monitors doesn't have HDMI, so I would be buying another adapter.

All in all, I'm pretty happy, and this is a pretty good low cost solution if you just need the work space and aren't too concerned about high resolution video.

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1 Posts

01-25-2018

US

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  • Message 55 of 97

Re: Yoga 920 and Thunderbolt Dock

2018-01-25, 1:26 AM

Today I purchased a Yoga 920.  I had visited this blog before to make sure I could get dual monitors working with the Intel 620.  I purchased the Targus DSU400US. It is pretty expensive, but does what I needed it to do.  Best Buy had it for $299.00.  I don't have 4k monitors, so I can't verify how they perform.  I have two Asuz 27 inch monitors running 1080.  The laptop charges through the docking station connected with just a USBC cord.  It detects all of the USB devices that I connect.  Cell Phone, Tablet.  The picture on Bestbuy isn't the correct picture.  You can Google the product and find videos.  It has two display ports, two HDMI ports, several 4 USB ports 3.0 Ports, Power delivery 2.0 up to 60 Watts. I USB C (data only).  I plugged in my monitors and connected the power supply and everything was detected and worked as expected. I just had to change the settings to extend the desktop to the monitors. Everything is running via the USB C cord that is supplied including charging via one of the TB3 ports leaving one still available.  If anyone would like me to test something other then the 4K, I would be happy to give my feedback.  

 

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2 Posts

01-27-2018

HK

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  • Message 56 of 97

Re: Yoga 920 and Thunderbolt Dock

2018-01-29, 15:20 PM
jetshine. Try unplugging your dc supply to the TB16, that seems to work for me. But I have a problem getting Logitech USB dongles to work properly with my keyboard and mouse.
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2 Posts

01-27-2018

HK

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  • Message 57 of 97

Re: Yoga 920 and Thunderbolt Dock

2018-01-29, 15:40 PM

I have this setup, but if I try to .MKV using VLC, I notice that my audio on my video will skip every 20-30 seconds, very annoying.  I took the D6000 back to place I bought it from, which also sells Dell notebooks and it works without any problem with Dell notebooks.  

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7 Posts

01-31-2018

US

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  • Message 58 of 97

Re: Yoga 920 and Thunderbolt Dock

2018-02-14, 2:03 AM

So I  just bought a nice Lenovo Yoga 920 and nice Lenovo USB-C dock for my kid to go to college thinking that "it should all work together".  Silly bleeping me.  Right now I can not see anything connected to USB3 ports, I can get the USB2 ports to work.  Also, while I have blinking lights on network ports, I can not see the network cable on my browser.  This is after installing all of the drivers.  I do get the video to work though.  So after reading this thread, I am basically beeped.  I guess I go back and look at the other options for docking stations...  So very very aggravating.  Not happy...

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1 Posts

02-20-2018

US

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  • Message 59 of 97

Re: Yoga 920 and Thunderbolt Dock

2018-02-20, 7:51 AM

Did you happen to try the laptop monitor as well, or are you replicating that to another display device?  Did you attempt to use any other Thunderbolt 3 dock, particularly given Lenovo wil deny the "compatibility" with this TB3 with the Yoga 920?

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7 Posts

01-31-2018

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  • Message 60 of 97

Re: Yoga 920 and Thunderbolt Dock

2018-02-21, 4:05 AM

I just got done trying a Plugable Mini hub with HDMI, EitherNet and 4 usb ports.  Almost exactly the same behavor.  USB1/2 work.  USB3 devices attached to hub are not seen and neither is the network controller. 

Attached is the PCI device tree.

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