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Yoga 2 Pro Internal Display

Q: Yoga 2 Pro Internal Display

Hi All,I've had this system for a while - Came with Win8.1Model 20266 About 2 weeks after the warranty expired, the internal display just stopped workingI can get to an external display; however, would like to start using it as a laptop again External Display WorksCamera WorksIf I touch the LCD screen the touch capabilities also workSomething that just hit me is that I have not tried any of the other capabilities (tablet mode)The system does not even recognize an internal display I've tried updating everything and still not workingTried to do a system restore - didn't work either Can that display really have gone bad that quick?

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RELEVANCY SCORE 200
Preferred Solution: Yoga 2 Pro Internal Display

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RELEVANCY SCORE 66.4

Hi Everyone:

So I want to set my Yoga 2 Pro QHD+ (3200x1800) screen to 2560x1440 and am having some issues. windows will let me use for 16:9 3200x1800, 2048x1152, and 1080p. Trying to set a custom resolution in intel control panel gives me an exceeded bandwidth message with the HD 4400. I am using drivers 15.36.19.4170 and I have researched the issue but they always seem to point to using the hdmi out for a dual-link dvi display. One person on superuser had a similar question but I don't think it had a solution that worked I could follow. Can't create custom resolution using intel custom mode app in windows 8.1 - Super User

So does anyone know of a regedit to make this work or if my display can not support this resolution since the way the pixels are laid out or something. I think 3200 is to much for this gpu to handle well but love the real estate, and 2560x1440 is I think the sweet spot for 13 inch displays atm. My desktop res is also this resolution so I feel right at home.

Thanks again
Malcolm

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RELEVANCY SCORE 64.4

My Thinkpad Yoga 15 has a problem, which may or may not be related to the BIOS update recently performed. When booting, the bootup screen only appears on an external monitor via the HDMI output. When performing the hardware tests in the BIOS, tests are done on the HDMI-connected display, the internal display does not seem to be recognized. I verified this using both Linux and Windows. It does not seem to be a hardware failure; I have been able to get the display on the internal LCD a few times, by powering down the laptop, holding the power button for about 20 seconds, then powering back on while pressing F1. The laptop will then function for a while, but loses its display after coming out of sleep. Needless to say, this is unworkable. Does anyone have any tips on how this could be fixed in a more permanent fashion or any indication to cause? BIOS does not allow me to turn off NVIDIA, or its opposite, to enable it exclusively. I also tried different drivers, from both Lenovo as well as NVIDIA and Intel, but to no avail. Any pointers appreciated.

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RELEVANCY SCORE 48

Can someone please tell me what the switch inside the yoga is for? It is located on the right side internally(next to the SSD) with a number "2" & letter "a" for positions. I am an experienced tech just wanting to know the function of this switch. Thank you!
 
 
Moderator comment: Model clarified in subject.

A:Yoga 13's internal switch?

Good day.
 
Which Yoga model do you have?ThinkPad Yoga 12, 14 or 15 inch
ThinkPad Yoga Chromebook
Lenovo Yoga 11, 11s, 13, 2Pro, 2 11, 2 13, 3Pro, 3 11, 3 14
 
Regards.

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RELEVANCY SCORE 47.2

Hi, I've been using my new laptop for 2nd week and when I speak with someone in Skype or Facebook they complain that they first start to hear me and then the volume becomes lower and lower and they start to hear some sounds and sometimes my voice dissapears at all. One time I was recording a video of myself for an interview and the sound of the video was so low when i was listening to it that I barely heard myself even with 100% sound volume. Did somebody have the same problem?

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RELEVANCY SCORE 46.4

I purchased the YOGA 710 for an online program requiring bi-weekly virtual classroom sessions and have been very disappointed with the fan and microphone locations on this notebook. Not only is the fan noisy like many others have complained of, but the fan is almost constantly running and blows DIRECTLY into the microphone and overrides any other noise input. My voice cannot be heard by others when using my microphone due to the overpowering "wind tunnel" sound effect created by the fan blowing into the microphone. I've had to slide a piece of paper of some sort between the fan and the microphone to prevent the overbearing noise, although it doesn't totally eliminate the issue. Has Lenovo acknowledged this poor engineering mistake? Are there any solutions or offers for a potential external microphone replacement/alternative for customers? I'm a bit disappointed that the poor design doesn't allow me to utilize the notebook for the sole purpose intended. Any help or advice is appreciated. It would be nice for Lenovo to have a customer support e-mail contact as a less-urgent alternative to their live chat option...

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RELEVANCY SCORE 46.4

While doing some minor unrelated repair on my Yoga 900 I noticed a few extra ports on the motherboard. On of them (JP7) has a connector soldered in (looks like those for cooling fans, five pins) but nothing connected to it and two others (JP10, JP15) without anything. I'm curious whether I can connect anything to them, who knows where could I find some specifications for the motherboard? Maybe some people working at Lenovo can shed some light on this? I'd really prefer to have some information before I start poking around with a multimeter or something. Thanks.  Photo of the ports (sorry I couldn't figure out )how to embed the image). (I know that anything like this voids your warranty. Besides, it's possible to destroy your motherboard and other expensive parts by doing any unauthorized alterations or repairs. Please do not consider anything in this topic as an advice of any kind, you're doing everything on your own risk.)

A:Extra internal ports on Yoga 900-13ISK's motherboa...

Hi,I'm not sure about your specific model, but I have a 500-14ISK which also has extra jumpers and unsoldered pins. Mine is probably because I have the device SKU without the dGPU chip, but my board still has all the spaces marked to accomodate this in the SKUs that have the dedicated nVidia card. Maybe yoursituation is similar?

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RELEVANCY SCORE 46

This is not the first time this has happened, where having opened the laptop to tablet mode, a cable appears to have come loose. This means that the laptop no longer recognises that the laptop is back to laptop mode, so it doesn't reactivate the keyboard. Lenovo last time fixed this saying it was a fault with the assembly, but it has happened again, this time out of the 12 month warranty, and 3 months since it last happened. I really expected better quality of manufacture and the repair seems to have been very poor. This is my work laptop and the only computer I got, and any time spent without it is crippling to my work. I am currently using an external keyboard, which means working on the move is very inconvenient. I have a YOGA 51014ISK Is there a way for me to ask Lenovo to fix their repair mistake? I seem unable to find a proper way to contact/complain regarding this. I am not happy that I have to pay for repairs again for the exact same issue so quickly after the last "fix".  Otherwise, is there a repair guide I can follow to fix this myself? I didn't see one, and I'll need to reconnect the keyboard wire inside. Thanks for your time.

A:YOGA 51014ISK - Keyboard internal cable coming loose

Your description sounds more like an operating system problem, not recognizing a sensor.  Obviously, I cannot see the machine so I cannot be sure.
 
manual:
https://download.lenovo.com/consumer/mobiles_pub/yoga_510-14ast_510-14isk_510-15isk_510-14ikb_510-15...
 

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RELEVANCY SCORE 46

Dear Community I have problems with the audio on my Think Pad X380 Yoga. The internal speakers and the headphone jack aren't working. I tried to reinstall the audio driver several times. Every time I uninstall the Conexant SmartAudio HD driver the Notebook reinstalls the driver by itself after restart. I also tried to manually install it before rebooting the system. Which worked but didn?t fix the problem.At the moment driver version 8.66.88.50 is installed, which should be the newest version. Does anyone have an idea what I could do? I can see the green audio output moving on the volume mixer in windows.And before you ask, yes I have tried to fix my sound problem with the Lenovo help site (https://support.lenovo.com/gr/de/solutions/ht501860). Thanks for any help!

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RELEVANCY SCORE 46

A couple days ago the built in display on my P70 started flickering on and off but it would always come back on until now. Now the keyboard and built in display do not work at all. All USB/HDMI ports seem to work okay though so I'm typing this on external keyboard and monitor. Anyone experience this before? Any suggestions? Thanks!

A:P70 - No internal display or keyboard

Hello SMAGThanks for using the Lenovo forums.Try a static discharge for this, it may help to resolve the issue or at least get rid of any built up static on the motherboard.(If the battery is internal, please just skip the remove/replace battery steps.)1. Turn the unit off2. Remove the battery and the Mains adapter3. Press and hold the front power button for 30 seconds4. Replace the battery and the Mains adapter5. Turn the unit on as normal If you`re able to, try to download the Video and Chipset drivers for the unit from the support page.
See if this will make any difference.
 
Hope this helps, let us know how you get on.==================================================================================Did someone help you today? Thank them with a Kudo! If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!
 
This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
 
 

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RELEVANCY SCORE 46

A couple days ago the built in display on my P70 started flickering on and off but it would always come back on until now. Now the keyboard and built in display do not work at all. All USB/HDMI ports seem to work okay though so I'm typing this on external keyboard and monitor. Anyone experience this before? Any suggestions? Thanks!

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RELEVANCY SCORE 45.6

Hello,My microphone has not worked since i bought this laptop over a year ago, but it has not become a problem until recently for me. Initially no Conexant devices were discoverable in audio decivesI tried uninstalling and reinstalling the conexant driver, and the only progress that has been made is that a conexant external microphone is now visible (which i do not own). How can i make the internal mic discoverable? / do i need to use some other device like realtek?Thank you!!!Duncan (again, windows 10)

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RELEVANCY SCORE 45.6

Hello,My microphone has not worked since i bought this laptop over a year ago, but it has not become a problem until recently for me. Initially no Conexant devices were discoverable in audio decivesI tried uninstalling and reinstalling the conexant driver, and the only progress that has been made is that a conexant external microphone is now visible (which i do not own). How can i make the internal mic discoverable? / do i need to use some other device like realtek?Thank you!!!Duncan (again, windows 10)

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RELEVANCY SCORE 45.6

I have a Dell XPS L521x with Intel 4000 graphics as well as Nvidia GeForce GT640M. I currently only have one external display using the display port and I want to get a 2nd external monitor but I'm not sure if I can. I have read elsewhere that Intel 4000 graphics only supports up to two displays whether or not one of those is the internal display. So since I have a dedicated graphics card am I able to go up to go up another display? If you need more information let me know. Thanks!

A:Can I set up 2 external displays and my internal display?

I found the answer to my question. I went into control panel and looked at my display setup and my external monitor is using the Nvidia chip so I have expansion room for one more monitor.

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RELEVANCY SCORE 45.2

About 48 hours ago, I spilled coffee (w/ cream and sugar) on my keyboard while the power was on. I immediately turned off the laptop, wiped it dow with napkins, and turned to laptop upside down to enable draining. This model laptop has an internal battery for those unfamiliar, so I unfortunately could not remove that.  I left the laptop in a position for where air could flow through it (aided be a fan), and left it in such a way for ~40 hours.  This morning, I finally gained access to laptop tools, so that I could disassemble the the laptop and clean what I could with 91% isopropyl alcohol (not the ideal 99% I see recommended, but I don't think this is a major issue). There was residue visible on the metal beneath the keyboard, as well as a small amount on the battery. All of which was cleaned off with cotton ear swabs dipped in a bit of that rubbing alcohol. I reassembled the laptop, gave it a couple hours to let the small amount of rubbing alcohol to dry off, and tried booting up. Fans spin loudly for ~30 seconds, screen remains blank, no beeps or whatever emit from the laptop, and the power light remains on w/out blinking. The fans and laptop itself turned off after that 30 second period. I then tried hitting the "Novo Button" or "One Key Rescue", and this resulted in a blue menu popping up allowing me to start laptop in one of 4 modes. I tried clicking up or down to scroll through options, however those keys didn't work. Clicked "Enter" ... Read more

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RELEVANCY SCORE 45.2

Hi community, we are using several Thinkpads for years mostly without issues. But for a while now we have to experience issues with our T540p's in combination with pro and ultimate docks. And lately we also run into the same issue with a T570.Here our configuration, there are two external displays connected to the docking and one of them is the primary screen.And this is the issue: When we undock the T540p, the internal display should switch to be the primary and only display, but it doesn't. It seems to be that the T540p is still thinking to have external displays connected. The internal display is all black but I can move the mouse pointer from the right into the screen and can also move it out of the screen by pulling it downwards.All windows are opened on the virtual screen,which means I cannot see any configuration windows to change display behavior. Pressing Fn+F7 and up or down arrow blind does not change anything.It does not matter if I undock the T540p while it is running, or if I shutdown the system before undocking. When this error occurs it also does not matter if I connect an external display to the T540p directly, I still cannot see anything. To set the internal display to be the main display before undocking does not change the behavior anyway.If I put the T540p into the docking again, mostly everything is fine. The two external displays are running as before. If it was a desktop PC that would be fine but it is a notebook and we need to carry it with us an... Read more

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RELEVANCY SCORE 45.2

Hello,

i have purchased a second hand Latitude E5540. The problem is that nothing shows up on the internal display, when i connect a display to the VGA port it works fine. Even during POST so it can't be driver related. Loading defaults in BIOS and updating it to the newest version didn't help.
Any ideas what to try?TIA

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RELEVANCY SCORE 45.2

I have a Toshiba satellite a500.

The display stopped working about a week ago, and had not shown any previous signs of failing before then. I simply shut it down, and the next time it turned it on the screen had no display.

It can't detect it's LCD screen in any display options, and all brightness options have disappeared, as if it doesn't exist at all. There's no display on the screen, but other than that it still runs normally. For now, the laptop is only detecting the external monitor I have connected, which it designates as the primary display, rather than a secondary one.

However, I'm positive that it's not a hardware failure (for a weird reason I won't go into..), any advice on how to fix this, assuming that the problem is that the laptop isn't detecting the internal display? ( and not that it's a loose cable or a faulty screen..)

Thanks.
 

A:Laptop doesn't detect internal display.

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RELEVANCY SCORE 45.2

My internal display just stopped working for no reason with Windows 10. The external monitor still works fine though.I checked the Device manager, the internal display had disappeared from the Monitors section, only my external monitor was listed there.It had happened twice. I brought the display back the 1st time after I uninstall the monitor driver and re-installed the latest driver from Lenovo website, but this time it's already with the latest driver and the same trick did not work.Luckily I still have a clone image of the system with Windows 8.1. Once I switched back to Windows 8.1 the internal display worked fine so I think it has to be a driver issue.The display adpater is Intel HD 4600. The internal monitor is the original HD display that came with the laptop. Please help. 

A:T540p Internal Display stopped working

Hi Paulgti,
 
Welcome to Lenovo Forums.
 
Consider updating the Intel HD Graphics from the Intel Website. Also, check if display fine when you connect with external monitor.
 
Please update the following
Chipset
BIOS
Firmware
 
Let us know how you get on.
 
Regards,
Shashi
 
Tap that Kudos button if I helped  If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! 

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RELEVANCY SCORE 45.2

Hey guys, so i'm running B10074 on my laptop , and I connected my external display to it as well as my external keyboard and mouse at my desk so I could sit there and do the setup etc without moving all of that out of the way. I had the laptop lid shut and off to the side while I was doing this. Then, I shut the laptop down, unplugged all the external peripherals, and turned it on again. It went through the windows boot sequence with the spinning circles, then black screen. After 20 minutes of frustration, I realised that the laptop would show a login prompt only when I plug in the external monitor BEFORE i start it, and only if the laptop is closed while it is booting (when the lid is closed during boot, the Dell logo and spinning circles come up on the external display)

I further figured out that in Control Panel, it only displays the external display, its like the computer doesn't even recognise the internal display anymore. I dont know why that would be since when I first booted it up and installed drivers, I was using the internal display and everything was working fine.
Any help appreciated as well as pointers on not running into this again

A:I connected an external display to my laptop now no internal

Control Panel screenshot (normally this would have display '1' and '2')

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RELEVANCY SCORE 45.2

Hi,  My HP EliteBook 840 display flickers. I used also monitor but the issue remains.I tried to update the drivers but it didn't work.Could you please suggest what shall I do to fix the issue?  Thank you! BR,Ivo  

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RELEVANCY SCORE 44.8

I am experiencing excessive noise on my internal microphone. It appears to be always there - with or without fan running. Have tried re-installing drivers but no change. Loaded latest bios update again no change.

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RELEVANCY SCORE 44.4

Hi, My Thinkpad Twist does not display anything when turned on except on external monitors. The Device manager shows a greyed out internal display icon, says it is not connected. 1. Could this be the power connect ribbon cable p/n DC002C003W00 have a fractured wire(s)? I have tested for open circuit between PWR1 and PWR2 connectors and there are 4 sequential pins which are open circuit. Is this normal? 2. The touch screen works 3. There appears to be absolutely no LED backlighting working 4. Is there a possible fix for this and if so is it the power cables or some physical problem with the ribbon cables OR is it definitely a new display that is needed using existing cables? Thanks in advance Andrew

A:Thinkpad Twist s230U no internal display, works on...

The last 4 pins on the connector are unused I have determined so it is not the power ribbon cable connector. I found two wires fractured in the LCD ribbon cable right at the point where it feeds through the twist mount. I expect this could be a common problem after use. After repairing these two wires it did not fix the screen problem. I have ordered a replacement LDVS ribbon cable and will report back once I have replaced that.

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RELEVANCY SCORE 44

With fn + f5 , i have limited option and nothing with internal plus 2 external ...

Perhaps there is ? new driver to do so ...

Which driver ???

Thanks ? lot !!!

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RELEVANCY SCORE 43.6

I have 3 4K Monitors connected to a TB-16 docking station.  One monitor blinks erratically and has been an issue since my first purchase in May of this year.  I am on my 3rd replacement laptop and since it arrived 6 weeks ago, it has the same issue and DELL PREMIUM support says they are working on it but I have not heard back from them for now 6 weeks.  
I've seen many posts on this similar issue.  Is this just a defect that cannot be resolved.  If so, issue a refund and this will be returned.
And Yes, I've updated every driver in the order that was recommended by the DELL technician and they also did the same.  It has gotten more erratic and ridiculous that I have to pay this much money for a laptop that is unstable.  Help me escalate this to Mr. Dell and get this working or refund me. 

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RELEVANCY SCORE 43.6

I have a 9360 with the 3200x1800 touch screen and 16 GB of RAM.
When I connect an external 4K monitor and also use the internal laptop monitor, the external monitor flickers on and off every few seconds whenever the laptop is doing something graphically intensive (just zooming in and out of google maps is sufficient to trigger it, but lots of other things can too).
So far, I have tried two different 4K monitors, two different 9360 laptops, two different docks, connected directly to the laptop w/o the dock, a bunch of cables, and different intel graphics driver versions.  Currently running the Dell driver (21.20.16.4664) but they all have the same problem.
I can avoid the flickering if I disable the internal laptop screen when using the external screen - but that's not exactly optimal -  I'd love to be able to run both simultaneously.  I can also avoid it if I use a lower resolution monitor, but, according to the specifications, this laptop should be able to run 2 4K external monitors at 60 Hz simultaneously, and here it is choking on one + the internal display which isn't even 4K!
Has anyone else experienced this problem?

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RELEVANCY SCORE 42.8

I have a Dell XPS 15-9550 with 512Gb SSD, NVIDIA GeForce GTX 960M, and Intel 530. The SSD is encrypted using Bitlocker. I use it with an external monitor Dell U3415W. I’ve had intermittent problems with internal display blackout since day 1. I’ve had to force power down (10 seconds on power button) dozens of times. Sometimes it takes 2 or 3 cycles to come back.

As of a couple of days ago it appears the internal display has completely stopped working. There is back light but no image and no mouse. How do I recover this display?
Dell XPS 15-9550

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RELEVANCY SCORE 42.4

Hi I am trying to project my Yoga 720 laptop screen to my samsung 65 inch wireless display but it shows up as "connecting" then screen on both the samsung wireless display and laptop goes blank for 30 second and then gets disconnected. Any one faced this problem and resolved it?

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RELEVANCY SCORE 42

Hey all, I have a Yoga 2 13 (20344) whose display stopped working after a year or so of use (just out of warranty, of course.) To my knowledge, it was never damaged; I turned it on one morning and although the machine starts up (the keyboard lights up) the screen remains completely dead. It's not the screen itself as I'm also unable to get any display when connected to a different monitor via HDMI. I checked on the connections myself and also took it into a repair shop, but was told that there was nothing they could do as it seems to be an issue with the motherboard (this was after a pretty quick look-over, though.) I've gone through some of the similar issues posted here in the past, but they all seem to have been solved by replacing the LCD, but they weren't having the same issue connected via HDMI. What are my options here? Is there any possible culprits I'm overlooking? I'd hate to just be down a $600 laptop. I'd appreciate any help you guys can offer! Mel

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RELEVANCY SCORE 41.6

bought yoga 720 15 4k for a month from bestbuy, and found black line at the top right of the screen. should i go for bestbuy or contact consumer service of leveno. And is there any possibility for return or can i relpace with new one, or at least repair for free. what should i do?

A:Yoga 720 Display Issue

Hi Maihu,
 
Welcome to the Community Forums.
 
Specially if the same black line appears even in the BIOS, you can initially contact Best Buy for options on return with the  store's return policy for a faster return/replacement. If that option is not available then call technical support for in-warranty repair option. 
 
Hope this helps answer your query.
 
Regards

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RELEVANCY SCORE 41.6

Please find the attched picture right one is clear white from other device and left one is yellowish from yoga 510 newly bought tried fn+esc to turned off paper display but nothing updated bios tries everything. Looking forward


























20170227_224014.jpg ?3273 KB

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RELEVANCY SCORE 41.6

Hello! I am trying to connect my laptop to dual display. I purchased this hub: https://www.amazon.com/gp/aw/d/B0734YTFN1/ref=yo_ii_img?ie=UTF8&psc=1 which connects through USB C. I can plugmy mouse and keyboard in, and they both work fine. When I plug one monitor into the hub, it also works great, but as soon as I plug in the other (through an adapter to the DisplayPort in the hub), NEITHER monitors work even though the keyboard and mouse do. Do you have any suggestions??? thanks!

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RELEVANCY SCORE 41.6

The Lenovo Yoga 900 is perhas Lenovo's most innovative hardware but sadly it is hobbled by the lack of a 4K display. I feel this is the the most cutting edge Windows All In One ever designed with a 27" display and a battery offering limited mobility for presentation but it seems they designed the best Windows All in One and then ruined it with low end specs. We operate an architectural design firm and we can easily buy about 12 of these right away for our design work if not for the low end specs and the lack of a 4K display. It is very encouraging that Lenovo has updated the 27" display of the AIO 910 with a 4K display and I really hope this means we will see a version of the Yoga Home with a 4K display. I can't imagine using a 1080P display in close range when the display is 27". Even for home use, at that distance and screen size individual pizels are so easily visible and this device really needs a 4K option. Does anyone know if a 4K version of this product is on the horizon? That woud make for an incredible device both for home use and design/engineering work.

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RELEVANCY SCORE 41.6

The buttons are too small to see in most of the applications. Many times the buttons are not visible. Texts and buttons are trimmed disproportionately to such an extent that i am unable to use the applications. Changing diplay settings in the intel HD graphics control panel did not help. I tried all posssible combinations. I tried many applications. The problem is same everywhere. I need a solution which can make every application appear proportionally and every key should appear perfectly. The following images are just for illustration No button is visible - Batman Arkham KnightButtons are timmed - Battlefield 4Texts are trimmed near file browser - Battlefield 4Can't know what to click - Battlefield 4Appearance of windows explorer - center image - OverridedAppearance of windows explorer - Center imageButtons and texts both are trimmed - Devil May Cry 4Small KMPlayer with default settings - just after installationKMPlayer full screen - try clicking a buttonWindows explorer - Maintain aspect ratioWindows explorer - Maintain display scalingdarksiders - trimmed text and buttonsDarksiders- can't know which button signifies whatwindows explorer - scale full screenWindows explorer - scale full screen - overridedWindows explorer - Scale full screen - overrided4K Downloader - look at the footer- trimmed - tried all configurationsSmall buttons of VLC media player

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RELEVANCY SCORE 41.6

 At the top edge of the display a red thread (string) comes out. Is it possibly an antenna. What do I do now?

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RELEVANCY SCORE 41.6

Hello I am brought to this forum looking to solve an issue with an out of warranty Yoga 2 pro.after being shut down normally  and turned back on  the screen is totally blank. Power and keyboard lights are on. System is working on external hdmi screen but the built in screen is black.The touch function of the screen does work just no video.the builtin monitor does not show in device manager, only the external display.I have updated bios and  uninstalled and reinstalled the latest graphic drivers The lenovo online diagnostics return that all is working fine but of course it does not test the builtin monitor, since its not detected by windows.I have ran the diagnostic on all. i tried accessing the bios to see if there is a setting for the builtin monitor but it seems that windows need to be loaded for the external display to work. Since I cant see i have no real way of knowing.Safe mode cant be used i assume for the same reason.The graphic adapter works with external display and the builtin tactile screen works as touch pad.i cant seem to find any drivers for the builtin monitor.Is it the screen, the adpator or the cables ? How do i go about diagnosing this?i opened it up and disconnected screen and battery (as per one link) and revised all other connections. thanksIt appears that there are no authorized service providers here.  

A:Yoga 2 Pro Help with Display Diagnostic

Hi PanmEric , 
 
Welcome to the Community Forums. 
 
Essentially everything works as expected on an external display. 
The way that you have described it seem that the LCD panel/ cable / assembly is having the issue. 
 
It is expected not to see the BIOS and safe mode in the external monitor since it is using advance graphics and the pc relies on the built in display as machine level display . The systemboard is working ok and same goes with the graphic chipset and drivers ( able to show advance graphic features such as external project display) but it is just the built in LCD itself not displaying.
 
Grab a pen light if there is a shade of display on the black screen to isolate LCD lighting issue.
 
Since you have already tried reseating the cable, you may need to consider LCD replacement or testing as a fix (I usually try with a spare cable first) . You can get the part number from the parts look up site and here is the hardware manual .
 
Use this tool for service center location in your region or check locally for repair centers.
 
Hope this help answer your query. 
Update us how it goes best for you.
 
Regards
 

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RELEVANCY SCORE 41.6

I have a Yoga X1 (1st generation).  I have the screen set to max brightness.  When I wake the laptop from sleep, the screen is always dim for a few seconds before going to 100% brightness.  I would like the screen to start at 100% brightness.  How do I prevent it from starting dim.  (Note: I have adaptive brightness turned off and I tried going into the Intel Graphics Settings and changing the Power Plan to Maximum Performance.  These interventions didn't solve the problem.)

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RELEVANCY SCORE 41.6

I switched on my laptop this morning and was shocked to notice the display screen went blank. Some faint lines appeared on the screen. I restarted the computer and the same thing happened. its back on again now but what sign am i just getting ? or could it be the screen display is getting weak ?

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RELEVANCY SCORE 41.6

Hi, I have a Yoga 900 and bought off monoprice their Select Series USB-C to HDMI Adapter.  When I plug in the adapter i get a quick error message that states "Try improving the USB connection - DisplayPort connection might not work.  Try using a different cable." I tried different monitors, HDMI cables, then realized we had another Yoga 900 and the adapter worked immediately with it, so I suspect either my port is bad or the drivers are messed up.  Can anyone give me some advice/tips on what I could do to narrow this down?  I'm really hoping the port isn't bad. Thanks,Tim

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RELEVANCY SCORE 41.6

Yoga 14Power Scheme is set to High PerformanceTurn off Display is set to Never when plugged in. Display turns off when plugged in after 5 minutes of no activity.  What's the deal?

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RELEVANCY SCORE 41.6

Hi, I was wondering if there are any brilliant minds out there, that could help me figure out if the Yoga 910 supports a 3-display configuration? I have tried to connect it to a 3-display configuration using a 3-way Display-hub with a USB-C to DP dongle. The system works fine with two of the displays and the Yoga monitor. But I've had no luck yet, using 3 external displays. On the Intel site, it says that the HD Graphics 620 is capable of supporting such a configuration. http://www.intel.com/content/www/us/en/support/graphics-drivers/000005556.html Anyone?

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