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Re: Yoga 720 dock compatibility

2017-07-14, 5:31 AM

Hey guys, I got a question, but first....

 

First off, my laptop is defective :( But since I literally had it for 4 hours before I noticed the defect, Lenovo is sending me a new laptop (not refurbished).... the cool part is that it is an advance exchange. It will be here Monday, don't have to return this one til it comes back. Since I had it hooked up to dual monitors, I didn't notice the defect in the screen until I unhooked it on night one and took it to my bed room. There is a small black line running horizontally across the screen. I didn't notice it because it was so close to the top of the screen I thought it was the top of the screen. It wasn't until I had it up close that I noticed it wasn't the top of the screen. Totally bummed....

 

 

Crazy, huh? Anybody else have that on their 15" UHD Yoga 720?

 

Ok, so now back to my question... the other problem I have had so far with my dock is that:


1) The sound is has some static coming through it on the dock where as when I plug it directly into the Yoga 720, it is fine. It's like the speakers "flicker" when plugged in through the dock...

 

2) I have a Logitech USB Combo device (mouse & keyboard).... a higher end version also. The problem I have is that when plugged into the dock, service is intermittent. I'll lose the mouse of the keyboard will act like a button is stuck. I have to unplug and replug in to fix it. Again, when plugged directly into the PC, no problem.

 

Could this be due to the dock possibly being bad? Could it be because its the USB-C and not the TB3?

 

Thanks!
David

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182 Posts

04-08-2014

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Re: Yoga 720 dock compatibility

2017-07-14, 20:35 PM

Bummer about the black line. You're not the first: 

https://www.reddit.com/r/Lenovo/comments/6ky29c/yoga_720_4k_beautiful_and_defective_display_black/

 

Also a bummer about your Lenovo USB-C docking station. I don't think it should be losing connection like that. And static in the headphone jack? Yikes. Almost sounds like it's under powered, just because I have a USB-C little hub (Cable Matters HDMI, dual USB3.0, and ethernet) and it is flakey with the connections and supposedly works better if I plug power into the USB-C power delivery port (but I don't have any of those).

 

 

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61 Posts

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Re: Yoga 720 dock compatibility

2017-07-14, 20:50 PM
snake, wow... the only difference though with his laptop is that you can't see it in BIOS.... with mine, you can. It's permanent. :(
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Re: Yoga 720 dock compatibility

2017-07-14, 22:50 PM

wrote:
snake, wow... the only difference though with his laptop is that you can't see it in BIOS.... with mine, you can. It's permanent. :(

Nice that they are doing an advance replacement for you, at least. Hoping my screen doesn't have issues, like coming apart or anything like that. Oh well, 3 year warranty will cover it!

 

On another note unrelated to yours, I'll be getting my TB3 Lenovo dock and trying daisy-chain dual QHD monitors, but not until Monday the 24th probably since I have next week off of work. I got the daisy-chain method working on my W530 with ultra dock earlier today (previously it was only recognizing them as 1 mirrored display), so I know for sure that my cables and monitors can daisy-chain. I have high hopes for the TB3 dock, but am willing to try a USB-C dock that has alt-mode DP as my plan B. Maybe BOSDesignCo will verify that dual DP doesn't work on the TB3 dock by then (yes I'm skeptical). 

 

Also, check out this thread I started.

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61 Posts

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Re: Yoga 720 dock compatibility

2017-07-14, 23:19 PM
That sounds awesome snake. Checking your post now...

With the TB3 dock, I wonder if that actively charges when connected. My USB-C dock does not charge and I have to connect it via the charger.
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22 Posts

05-27-2017

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Re: Yoga 720 dock compatibility

2017-07-14, 23:20 PM

Do you have the 15 inch model? I believe the USB C port may not support charging on the 15 inch model. My yoga 13 inch with the USB C dock definitely charges. 

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Re: Yoga 720 dock compatibility

2017-07-15, 0:27 AM
Hey yyzlhr :)

I have the 15" model HOWEVER it does support charging through the USB-C model. I have a USB-C Anker portable charger that I use for my GS8+ and I connected the USB-C to USB-C charger to it directly and it lit up and was actively charging the laptop....

That's why I was surprised that it wasn't charging via the dock....
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Re: Yoga 720 dock compatibility

2017-07-15, 5:43 AM

wrote:
Hey yyzlhr :)

I have the 15" model HOWEVER it does support charging through the USB-C model. I have a USB-C Anker portable charger that I use for my GS8+ and I connected the USB-C to USB-C charger to it directly and it lit up and was actively charging the laptop....

That's why I was surprised that it wasn't charging via the dock....

That's the first I've heard of anyone able to charge the 15" model through its USB-C port. Pics or it didn't happen. :smileyhappy:

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61 Posts

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Re: Yoga 720 dock compatibility

2017-07-15, 5:52 AM
snake -- I feel dumb!! LOL

So, I just tested..... and it does not charge. Apparently, I think I mistook the blinking light on the charger actually as a sign it was charging when in fact it was charging..... the charger was getting charged lol not the laptop :)
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61 Posts

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  • Message 90 of 164

Re: Yoga 720 dock compatibility

2017-07-16, 0:03 AM
Also, I got bored and tested a third external monitor.

1 - UHD - Yoga 720
1 - 1080p; DP to HDMI
1 - 1080p; DP to HDMI
1 - 1080p; VGA

So it was a mixed bag of nuts...

To try and run 4 screens at once, you cannot do that. We figured that.

HOWEVER and this is interesting... if quality is not the most important and real estate space is, you can do this type of configuration...

Turn off the Yoga 720's monitor.

I had to play with the resolution a little bit but believe I had all 3 monitors around 720p resolution.

You may think, well why would I want 720p on 3 monitors instead of 2 1080p and 1 UHD? Simple 15" monitor < 24" monitor lol

I have 2 21" monitors for 1080p. I lower the resolution a little bit on those and then the VGA connection ended up being a 24" monitor so I would have a bigger screen than the Yoga 720's 15" display.

Personally for me, it isn't useful. The 15" display on the Yoga is plenty big enough for a 3rd monitor for me, when docked I primarily only use the 21" Acer's I have.... I could see though where this could be useful for somebody who could use the bigger screen.

Thoughts?
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