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YOGA 920 no screen after reboot/restart/start with Thunderbolt 3 eGPU Dock

Q: YOGA 920 no screen after reboot/restart/start with Thunderbolt 3 eGPU Dock

My Yoga works fine with Thunderbolt 3 eGPU when i put it on when Notebook is running.If I try to restart or turn Notebook on with eGPU Dock I get no signal for screen. Not on Notebook Display and not on external Display. There is no way to get a signal on any Port or to change output. The only Way then is a Hard Reset. After that everything works finde, even the eGPU.I tried this with Razer Core X and HP Omen Accelerator and Razer support said its a Problem with the Thunderbolt3 Driver.Anybody had this Problem too?I tried Drivers from Lenovo and from Manufactures.

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RELEVANCY SCORE 200
Preferred Solution: YOGA 920 no screen after reboot/restart/start with Thunderbolt 3 eGPU Dock

I recommend downloading and running DAP. It can help sort out any driver and firmware related issues on your system

It's worked out well for many of us in the past.

You can download it direct from this link http://downloaddap.org. (This link will open the download page of DAP so you can save a copy to your computer.)

RELEVANCY SCORE 115.2

I've had my x1 yoga 3rd gen for about a year now, and love it. I've been using a thunderbolt 3 eGPU dock (aorus 1070 gaming box) as a dock for about the same amount of time now, since it gives me the convenience power and portability. Other than the occasional visual glitches and restarts, I haven't had any issues when I unplug my laptop from the eGPU dock, or plugging it in. However, yesterday after I unplugged my laptop from the eGPU dock, my laptop kept making a "connected USB" and "disconnected USB" sound. It looked like my Thunderbolt 3 software app kept crashing and rebooting. I also noticed that none of my usb c/thunderbolt 3 ports were working; the laptop says it's charging with nothing plugged in, and when I tried plugging in a charger, it wouldn't charge. The only solution I found was to disable Thunderbolt 3 in the BIOS, but I'm not sure if this is a software issue, or if there's a part of my motherboard that's fried. Does anyone have any ideas or suggestions for troubleshooting?

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RELEVANCY SCORE 100.4

I have recently purchased a YOGA 920 and a HP Omen egpu enclosure. I am having problem connecting it to my laptop.
 
First, I tried both port, there's the sound of connect and disconnect, and nothing shows on the laptop, and the laptop is not charging.
 
I have tried with power cable connected, and now it was connected. The egpu still was not charging (no power delivery), and it only works one port 2 (port closer to touch pad) with charger connected to port 1. If I switch them, the laptop goes blue scree. I can remove the power after it is connected but then there is no power supply.
 
It is kind of similar to the issue as MrKnowNothing https://forums.lenovo.com/t5/Lenovo-Yoga-Series-Notebooks/YOGA-920-Thunderbolt-3-Port-No-devices-fou....
 
I have tried different drivers but all of them do not work. I have updated BIOS and Type-C firmware from Lenovo to the most recent version.
 
One more thing. Is it normal that thunderbolt controller is not showing up in device manager when nothing is connected?
 
I have tried it with my friend?s xps, it works perfectly, basically plug and play.
 
I think it is not supposed to work like this and the egpu should have power delivery to my laptop. Even if there is no power delivery, it should still connect without power adapter connected. Is this hardware problem or driver problem? Is there anyone else have similar problems?
 
Thanks!
 
Moderator Note: Edited subject to match content. 

A:YOGA 920 Thunderbolt/EGPU Issue -HP Omen egpu

guess its not compatible with hp omen? ;(I was hoping to be able to charge and also use the thunderbolt output at same time so I can connect at least one 4K monitor to each port and still charge

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RELEVANCY SCORE 94.4

Hello, We have been fighting a new Lenovo Yoga X1 + new Thunderbolt 3 Dock+ new LVO T22I-10 21.5IN 1920X1080 LED MON for 2 months.  We've updated all drivers and bios on the Yoga - up to date as recently as yesterday.   Still every day, the client sits her Yoga on the desk, plugs in the lightning cable, waits and 90% of the time, the external monitor does not come on.  We've tried VGA cable and Displayport cables.  Neither work.  What is the deal with this?  Is it just defective?  This completely new computer set up shouldn't be such a hassle.  Please advise.

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RELEVANCY SCORE 94.4

Hello, We have been fighting a new Lenovo Yoga X1 + new Thunderbolt 3 Dock+ new LVO T22I-10 21.5IN 1920X1080 LED MON for 2 months.  We've updated all drivers and bios on the Yoga - up to date as recently as yesterday.   Still every day, the client sits her Yoga on the desk, plugs in the lightning cable, waits and 90% of the time, the external monitor does not come on.  We've tried VGA cable and Displayport cables.  Neither work.  What is the deal with this?  Is it just defective?  This completely new computer set up shouldn't be such a hassle.  Please advise.

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RELEVANCY SCORE 89.2

I receintly purchased the x1 yoga 3rd gen to use with my  ASUS ROG XG Station 2 eGPU. Shortly after connecting the eGPU, the computer disconnects it, then reconnects. I've updated all drivers, firmware, and software, tried a different tb3 cable, tried it in the second tb3 port while the charger is plugged in, and confirmed the eGPU works on another machine.  

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RELEVANCY SCORE 89.2

I have recently purchased a YOGA 920 and a HP Omen egpu enclosure. I am having problem connecting it to my laptop. First, I tried both port, there's the sound of connect and disconnect, and nothing shows on the laptop, and the laptop is not charging. I have tried with power cable connected, and now it was connected. The egpu still was not charging (no power delivery), and it only works one port 2 (port closer to touch pad) with charger connected to port 1. If I switch them, the laptop goes blue scree. I can remove the power after it is connected but then there is no power supply. It is kind of similar to the issue as MrKnowNothing https://forums.lenovo.com/t5/Lenovo-Yoga-Series-Notebooks/YOGA-920-Thunderbolt-3-Port-No-devices-fou.... I have tried different drivers but all of them do not work. I have updated BIOS and Type-C firmware from Lenovo to the most recent version. One more thing. Is it normal that thunderbolt controller is not showing up in device manager when nothing is connected? I think it is not supposed to work like this and the egpu should have power delivery to my laptop. Even if there is no power delivery, it should still connect without power adapter connected. Is this hardware problem or driver problem? Is there anyone else have similar problems? Thanks!  

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RELEVANCY SCORE 85.6

I knocked together an eGPU for my Thinkpad Yoga 370 today with an AKiTiO Node, a NVidia GTX 1050 and a thunderbolt 3 cable.it was all literally plug & play. Spent:  Node eGPU box $240, Refurb NVidia 1050 card, $135, spare thunderbolt cable, $25, upgraded RAM to 16GB DDR4, $160. Put it all together, plugged in T3 cable from PC to Node Box, HDMI from Node box to Lenovo 4K monitior.  Windows recognized new GPU and I loaded the drivers from NVidia.  Windows users the eGPU to drive the external monitor at 2560x1440, Intel integrated GPU drives the laptop panel at the same time.  Works as advertised, no issues.   I tested the setup by rendering video with Corel Video Studio Pro 2018 and the eGPU doesn't even breathe hard.  Ran DCS world (combat flight sim) on Steam (which wouldn't even load prior) and it works flawlessly on high graphics settings.  I'm a terrible pilot, but the visuals are pretty amazing. If you have any questions let me know but this was super easy. Pictures at this link: https://photos.app.goo.gl/kJP4LXCXcxwyXBAC2 





2017 Yoga 370 (personal) 2017 T570 (work), LG G6

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RELEVANCY SCORE 84.8

Hello,I'm interested in buying the new x1 yoga when it becomes available.  I'm a graduate student and my focus is in deep learning.  I'm aware that there are other options available (NVIDIA built in), but I am interested in the portability of the X1.  I'm also aware that transfer speeds can be a problem when using an eGPU but it's my understanding thunderbolt3 could be "fast enough" for this application.Would I be able to do cuda programming with the x1 and an eGPU like the razer core + titan x though the thunderbolt 3 port?Thanks!

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RELEVANCY SCORE 80.8

I have a Yoga 370 (Win10) and a Thunderbolt 3 dock & Thinkpad USB-C dock and i cannot get them to play nice. I am using the USB-C cord on both devices, it transmits video and power but not USB or Ethernet. I have downloaded drivers and firmware from Lenovo and still no luck, the computer does not see the dock BUT the video and power are there. I changed my BIOS settings per the firm ware update well and no luck. any help would be much appreciated!

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RELEVANCY SCORE 80.8

I want to buy the Lenovo Yoga 920 (i7 with 16 GB) and I?m used to work with 3 external full HD Monitors. Since it has 2 Thunderbolt ports, it looks like the Thunderbolt 3 Dock may work with the 920. However, it is not listed on the compability list for the dock. Therefore: are the dock and the 920 working together?  

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RELEVANCY SCORE 80.8

Hello all,I bought a Yoga X1 2018 and during the shop they suggest the Lenovo Thunderbolt 3 Dock. Since I thought that having to disconnect only one cable when bringin the laptop from the desk to the meeting room would have been useful, I bought it.With my disappointment I setup everything and I did some tests on the laptop just to discover that the performance of the laptop when powered through the docking station are 1/3 with respect to when it's powered by the 65W power supply and 1/2 of when the laptop is on battery... (234pt vs 640pt vs 563pt | dock/65W/battery)Now since the docking station has a 135W power supply, I really can't think that this is an issue with the supply from the docking. Also since the laptop is even faster on battery I really don't understand how it could be related to the power supply... anyway I've connected both the 65W power supply and the docking and the performance are back to normal.Is there anyone who can suggest me what's going on or how to report this to Lenovo?

A:Thunderbolt 3 dock & Yoga X1 3rd gen

Hello,i have the same setup (X1 Yoga 3rd Gen + Thunderbolt Dock)  and dont experience less or different performance.I have 2 monitors with display port and couple of USB devices connected to the Dock. Also using 2 external and the Yoga monitor at the same time was never a problem.What tests have you done to measure the performance?best regards,AT

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RELEVANCY SCORE 80

So I got a brand new Yoga 370 and just got me a ThinkPad Thunderbolt 3 Dock. I have connected it to my laptop through a Thunderbolt 3 (40 Gb/s) USB-C cable male-male 5A, which supports power supply up to 100 W. I have plugged in the dock itself with a Lenovo original cable of 90 W. I also plugged in a HDMI cable from the dock to my monitor. After plugging in, my computer automatically installed the Thunderbolt software, package version 17.3.74.400. It also says I have the Thunderbolt controller generation 15BF, firmware version 4.04, installed now. Monitor works fine. But my Yoga is not charging. I tried to restart the computer, unplug the dock, and I even installed the Lenovo Power Management software from the Lenovo website, which I assume is then the latest version. Any ideas of what could possibly be wrong here? It is a bit of a disappointment as I was hoping this would work perfectly fine right away. I spent some 50 dollars on the USB C cable and another 150 on the dock itself. Thanks 

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RELEVANCY SCORE 80

So I got a brand new Yoga 370 and just got me a ThinkPad Thunderbolt 3 Dock. I have connected it to my laptop through a Thunderbolt 3 (40 Gb/s) USB-C cable male-male 5A, which supports power supply up to 100 W. I have plugged in the dock itself with a Lenovo original cable of 90 W. I also plugged in a HDMI cable from the dock to my monitor. After plugging in, my computer automatically installed the Thunderbolt software, package version 17.3.74.400. It also says I have the Thunderbolt controller generation 15BF, firmware version 4.04, installed now. Monitor works fine. But my Yoga is not charging. I tried to restart the computer, unplug the dock, and I even installed the Lenovo Power Management software from the Lenovo website, which I assume is then the latest version. Any ideas of what could possibly be wrong here? It is a bit of a disappointment as I was hoping this would work perfectly fine right away. I spent some 50 dollars on the USB C cable and another 150 on the dock itself. Thanks 

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RELEVANCY SCORE 80

In short: can you recommend a graphics dock suitable for the Yoga X1 2nd gen? I just got this decked out ThinkPad Yoga X1 (second generation) and all it really needs to crush graphics-demanding games is an external graphics card. I've read articles about using Thunderbolt 3 graphics docks for just this use case, and I've read about a specific Lenovo Thunderbolt 3 graphics doc which appears to be only compatible with one model (not mine). What I can't find is anything about plugging one of these into my computer, or if it supports such a thing at all... Can any computer with Thunderbolt 3 use generic Thunderbolt 3 external, self-powered graphics cards?

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RELEVANCY SCORE 80

I have a thinkpad x1 yoga 1st signature edition. I don't have a usb-c port in my laptop. How can I connect the thunderbolt3 cable to my laptop?
I tried a usb to usb-c cable, and also an hdmi to usb-c adabtor, and my laptop can't recognize the dock either of those ways...
 
Moderator edit: Matched Subject to content.

A:Thunderbolt 3 Graphics Dock with x1 yoga 1st

I believe you need a thunderbolt 3 enabled device for it to work at all. 

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RELEVANCY SCORE 80

Spoiler (Highlight to read)I have purchased this Notebook 81JS0005GE and this docking station https://support.lenovo.com/ec/en/solutions/acc100356 ( ThinkPad Thunderbolt 3 Dock). Everything is working just fine except two things:The Laptop is not charging only via thunderbolt (tbt-cable in back of docking station, firmware and drivers up to date)My second screen will only connect if i stick the hdmi cable directly into the laptop and will only detect one over the docking station.Is the Thunderbolt Slot somehow not capable of doing double monitor and charging? Especially the charging is upsetting... I have purchased this Notebook 81JS0005GE and this docking station https://support.lenovo.com/ec/en/solutions/acc100356 ( ThinkPad Thunderbolt 3 Dock). Everything is working just fine except two things:The Laptop is not charging only via thunderbolt (tbt-cable in back of docking station, firmware and drivers up to date)My second screen will only connect if i stick the hdmi cable directly into the laptop and will only detect one over the docking station.Is the Thunderbolt Slot somehow not capable of doing double monitor and charging? Especially the charging is upsetting...  

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RELEVANCY SCORE 78.8

I seem to be having a problem with my Yoga 720 15" and the Lenovo Thunderbolt 3 Dock.    Every once in a while the screens blank out and then return.   Sometimes I get a Topology Has Changed message when this happens and all my windows scramble.   Sometimes they all go to the laptop and sometimes they dispurse amongst my two monitors. Anyone else experience problems with this configuration? All of my drivers are updated except BIOS because apparently it does not like the fact that I installed my own version of Windows 10 instead of leaving the one that came with it.....but that is another issue. I could not find anything regarding updating the Thunderbolt 3 Dock firmware.    Here is what I have on my Thunderbolt driver: 

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RELEVANCY SCORE 78.8

Hi all, I do tech support at a university that uses various Lenovo notebooks across campus. I have noticed a trend among the users that have a Thinkpad Yoga 370 Notebook and are using a Thinkpad Thunderbolt 3 Dock, myself included. Occasionally (every few weeks or so), one of the affected systems will show "plugged in, not charging" tooltip when hovering over the battery tray icon. When this happens, the charge indicator light by the charging port and Thunderbolt port does not turn on, the battery continues to drain, and unplugging the Thunderbolt cable and either plugging it (or the regular power cable) back into the notebook has no effect. These systems all use Lenovo System Update to keep their drivers and BIOS up to date, and I have updated the firmware on the Thunderbolt 3 Docks manually. This issue was brought to my attention because it started happening to me and my laptop/dock after the first few weeks of having it, and this behavior continued to happen for months. I would constantly be plugging in and unplugging my laptop, as I do on-site support in several buildings, and my laptop goes everywhere with me. In October I stopped using my dock entirely, and since then have had 0 problems when just using the laptop's regular charging cable. I have 3 or 4 other users whom I support that have this issue though; due to the sheer volume of documents they need open at once, they need a multi-monitor setup and ethernet ports, so not having a dock is not an option. Ag... Read more

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RELEVANCY SCORE 78.8

I have recently purchased both of the subject items.  I was informed via chat channels with Lenovo that the graphics dock would work with the X1 Yoga 3rd Gen.  However, upon connection, my Yoga recognizes that a Thunderbolt device has been connected but it does not recognize that a graphics card or USB ports exist.  Thus, my mouse, keyboard, and monitor do not work while connected to graphics dock.  I have downloaded and installed the drivers for the graphics dock but the result is still the same.  Does the graphics dock really work with the X1 Yoga 3rd Gen?  If so, is there a BIOS setting I must address to make this configuration work?

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RELEVANCY SCORE 78.8

Hi! Ive just bought 2 new Full HD monitors to feed them using a Thunderbolt 3 Dock. My problem: one of the monitors has a colour issue showing purple instead of green. Sometimes the right one, after restart the left one a.s.o. - I changed cables from DP to HDMI and VGA: ever the same- Ive tried the second thunderbolt port of the docking station Once even the laptops display itself showed the wrong colours but it now works fine again.Im not able to get the tweo external monitors working together with the right colours. Neither including the Yogas display nor when Yogas display is turned off. What to do...? Best regards!


























IMG_4593.JPG ?739 KB

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RELEVANCY SCORE 78.8

We have standardized our deployments to ThinkPad X1 Yogas, and in many case including this one, they are the second generation model. Because of the performance, we use the Thunderbolt 3 Dock, purchased directly through Lenovo. This setup is not unfamilar to use as we have deployed over 40 workstations in the same configuration. This morning, our team received a call stating that an end-users monitors weren't working. Upon reviewing, we found that the dock wasn't being recognized by the laptop, although the connection was there because it was charging the laptop. We went through the normal "rinse and repeat" steps of ensuring that the thunderbolt cable was connected to the correct ports on both the dock and the laptop, removing the connection, removing the power, rebooting the computer, reintroducing the dock, etc., but to no avail. We remove the dock from known devices hoping that it would spark it to recognize a new device, but it didn't. We removed the Thunderbolt Software completely, reinstalling it, and then reconnecting the device, and still, nothing. Our devices are set to automatically install critical and security updates both through Lenovo Vantage and Windows Updates, but, the only change made between the time it was working and the time it stopped working wasn't relative to the dock. To be sure, we rolled back the updates, then rolled back farther, but it still didn't resolve the issue. We then followed through with installing all Windows and Lenovo updates: ... Read more

A:ThinkPad X1 Yoga 2nd Gen & Thunderbolt 3 Dock Not Connecting

Hi scsh4, You didn't mention dock firmware. There was a recent update with quite a few fixes and changes. Note the install instructions, it's not the usual:
https://pcsupport.lenovo.com/us/en/downloads/DS506115

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RELEVANCY SCORE 78.8

hi, I have setup one of my faculty with a Yoga 920131KB plus Thunderbolt 3 Dock. He has an existing monitor (Samsung Syncmaster P2450) that should support 1920x1080. Seems to be current on all drivers and patches under Win10 EDU version. (Including the CCG4 Firmware Update to v55). We are using the HDMI output from the dock. If we try to configure extended desktop to the Samsung monitor at 1920x1080, the screen extends off both sides about half an inch. Maybe also a quarter inch over at the top.  As a work-around, set at 1680x1050, video generally works as expected, but the display starts about 2" in from either side. Generally I don't like using add-on utilities (prefer to just use standard windows built-in options), but somewhere along the line this has the Intel Graphics HD Utility.  I was using that to switch resolution, the Windows settings seemed to track along with changes in the Intel utility, but still overscanned the display.  I played with some other settings in the utility about Display Scale (other than 100%), didn't seem to change anything. A second problem occurs with this setup: when the laptop is used at home, put to sleep, then plugged into the dock, the screen is displayed on the external monitor at maybe 200% (?).  That is, you only see the central portion of the image.  No fiddling with settings seems to correct it, but rebooting usually fixes it. The second problem also occurs with a similar Yoga 920 + Dock (d... Read more

A:Yoga 920, Thunderbolt 3 Dock and external monitor

Also wanted to mention something I noticed while working on this: I saved a log from the Intel Utility. There is a section in there about "Maximum Image Size". This seemed to be correct for the laptop display (12.2"x6.69") but the Samsung was listed at 6.3" x 3.54"    It is a 24" diagonal display, so that is obviously wrong, but I don't know that it is important. Intel(R) UHD Graphics 620 Report Date: Monday, February 5, 2018Report Time [hh:mm:ss]: 1:21:19 PMDriver Version: 23.20.16.4849Operating System: Windows* 10 Education (10.0.16299)Physical Memory: 16225 MBVendor ID: 8086Device ID: 5917Device Revision: 07Graphics Output Protocol (GOP) Version: 9.0.1066Current Resolution: 1680 x 1050 Display Type: DigitalDDC2 Protocol: SupportedGamma: 2.2Connector Type: DisplayPortDevice Type: DisplayPortMaximum Image SizeHorizontal Size: 6.3 inchesVertical Size: 3.54 inches

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RELEVANCY SCORE 78.8

Hi all, I do tech support at a university that uses various Lenovo notebooks across campus. I have noticed a trend among the users that have a Thinkpad Yoga 370 Notebook and are using a Thinkpad Thunderbolt 3 Dock, myself included. Occasionally (every few weeks or so), one of the affected systems will show "plugged in, not charging" tooltip when hovering over the battery tray icon. When this happens, the charge indicator light by the charging port and Thunderbolt port does not turn on, the battery continues to drain, and unplugging the Thunderbolt cable and either plugging it (or the regular power cable) back into the notebook has no effect. These systems all use Lenovo System Update to keep their drivers and BIOS up to date, and I have updated the firmware on the Thunderbolt 3 Docks manually. This issue was brought to my attention because it started happening to me and my laptop/dock after the first few weeks of having it, and this behavior continued to happen for months. I would constantly be plugging in and unplugging my laptop, as I do on-site support in several buildings, and my laptop goes everywhere with me. In October I stopped using my dock entirely, and since then have had 0 problems when just using the laptop's regular charging cable. I have 3 or 4 other users whom I support that have this issue though; due to the sheer volume of documents they need open at once, they need a multi-monitor setup and ethernet ports, so not having a dock is not an option. Ag... Read more

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RELEVANCY SCORE 78.8

Hello,  I just bought a X380 and a Thunderbolt 3 dock and it seems that even if I updated the driver to the latest one, my dock is still not working to provide power supply to my laptop via the USB C Cable. It has different error messages: 1. plugged in, discharging2. plugged in, not charging3. it is plugged it, it shows like it is charging but it is not.  I don't know what to do anymore and I would really like to work. Could you please advise?Also, my battery is draining, from 100% to 86% in 10 minutes without heavy usage.  Thank you for your help! 

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RELEVANCY SCORE 78.8

OOTB when I connected the Thunderbolt 3 dock to my X1 Yoga (3rd Gen), the monitors behaved correctly. I installed all available updates for the machine as per the Lenovo Companion App, this included some firmware upgrades the dock. When I came into the office this morning, the laptop would not switch from single monitor mode, and the screens connected to the dock are not detected. Steps I've taken:Checked for updates via the Lenovo siteInstalled a Thunderbolt 3 Firmware upgradeReinstalled the Intel Display DriverAttempted to install drivers directly from intel (failed. referred by error message to lenovo website)De-authorized & Re-authorized the dock via Thunderbolt SoftwareI feel like I've made a simple settings change that is preventing the dock from showing me the devices available. Anyone have any ideas?

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RELEVANCY SCORE 78.8

Hi there,Would someone please kindly let me know how to connect the Thunderbolt dock to 3 HDMI monitors.  What adapters shall I need to purchase.   Thanks

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RELEVANCY SCORE 78.8

OOTB when I connected the Thunderbolt 3 dock to my X1 Yoga (3rd Gen), the monitors behaved correctly. I installed all available updates for the machine as per the Lenovo Companion App, this included some firmware upgrades the dock. When I came into the office this morning, the laptop would not switch from single monitor mode, and the screens connected to the dock are not detected. Steps I've taken:Checked for updates via the Lenovo siteInstalled a Thunderbolt 3 Firmware upgradeReinstalled the Intel Display DriverAttempted to install drivers directly from intel (failed. referred by error message to lenovo website)De-authorized & Re-authorized the dock via Thunderbolt SoftwareI feel like I've made a simple settings change that is preventing the dock from showing me the devices available. Anyone have any ideas?

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RELEVANCY SCORE 78.8

Hi! Ive just bought 2 new Full HD monitors to feed them using a Thunderbolt 3 Dock. My problem: one of the monitors has a colour issue showing purple instead of green. Sometimes the right one, after restart the left one a.s.o. - I changed cables from DP to HDMI and VGA: ever the same- Ive tried the second thunderbolt port of the docking station Once even the laptops display itself showed the wrong colours but it now works fine again.Im not able to get the tweo external monitors working together with the right colours. Neither including the Yogas display nor when Yogas display is turned off. What to do...? Best regards!













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A:Yoga 370 & Thunderbolt 3 Dock monitor issue

Solution: Settings were changed in the Intel graphics settings AUTOMATICALLY for one display - one colour value has been set to a wrong value. As Im the only one working with this machine its kind of weird - Ive nevr been to the additional intel graphic settings before.

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RELEVANCY SCORE 78

Hi, I  got Yoga 920 with Lenovo Thunderbolt 3 Dock that is connected to two 4k Samsung monitors. Just recently when I put Yoga 920 to sleep the monitors will switch off, but in 10-15 sec start looking for a signal.Basicaly screen goes to black (looks like monitor is off) and then in 10 sec it switches on a show blank screen with input name on (DisplayPort) and than it goes off and in 10 sec on with input name ..... this keeps cycling on and off. This is happening on both monitors. It's strange as it used to work fine untill recently (apropox 1 week ago). Im on latest bios with Yoga 920 and latest firmware for Thunderbolt 3 Dock and Lenovo Vantage says my system is up to date. The windows recently updated to Windows 10 (1709), not sure if that is related. Any help how to fix this issue?  

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RELEVANCY SCORE 78

Hello just got both laptop and dock today. I tried to set the dock up but I have had no luck. I downloaded the driver and firmware for dock and attempted initially to install the firmware but the cmd window was closing without rebooting the pc as expected. I then tried to install the graphics dock driver and then connecting the dock. This did not work as well. Out of ideas does anybody know of a trick or sequence of steps to get instalation completed ? Let me mention that the laptop is pretty current in drivers. Lenovo drivers has been updated using the Lenovo Vantage app and also windows 10 is current with latest and greatest. Your help and support is appreciated

A:Yoga 920 with Lenovo Thunderbolt 3 Graphics Dock (G0A1)

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RELEVANCY SCORE 78

In the last month I purchased a Thinkpad X1 Yoga 2G and the Thuderbolt USB C dock. Since the USB C cable that comes with the dock is too short to allow the dock on the right and laptop on the left (in laptop mode), I put the notebook in tent mode and all works fine---except... Everytime I power up from hibernate it starts beeping about once a second and does not stop. I have to disconnect from the dock, flip it to laptop mode (this is where the beeping stops), return it to tent mode, and then plug the dock back in. It seems that Lenovo, like everybody else, is rushing things to market with plans to fix bugs later (maybe). Any thoughts I how to stop the beeping?  The first time it happened I closed all the apps to reboot and it still was beeping. Thanks.

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RELEVANCY SCORE 78

Good morning, Got my brand new Yoga X1 2nd gen notebook together with the Thunderbolt 3 dock. I've a problem with the dock. When I connect it, it is recognized but I get a warning that the notebook is not charged and that I should connect the correct charger to the docking station. Moreover, when I connect an external display to the dock (via DP), the external display is not recognized, nor in the display settings nor can I manage to get a singal to the external monitor. I have installed the latest BIOS for the notebook (v. 1.10), latest Thunderbolt firmware and Thunderbolt drivers. I have rebooted serveral times, uninstalled, re-installed, disconnected etc.... to no avail. Anyone experiencing the same? Any solutions? Regards George

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RELEVANCY SCORE 78

Hi, I currently have X1 Yoga (2nd Gen) and am wondering if the TB 3 graphics dock will work on my yoga? My yoga's TB3 port is also my charging port, will the graphics dock charge my yoga while using the dock itself? Thank you!

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RELEVANCY SCORE 78

Received Thunderbolt 3 dock for my X1 Yoga 2nd Gen.It's charging the Yoga, the two displays are working.ALL the USB and ethernet ports are not.Did the updates, restart, repower of dock and Yoga.I know the ethernet is good because I have been using an USB to ethernet directly connected to the yoga.Yes I disconected the USB to ethernet adapter when trying the ethernet port on the dock. 

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RELEVANCY SCORE 78

I purchased the Thunderbolt 3 Dock with my Yoga 920 as it was listed as an accessory during my Yoga 920 purchase back in November.  I finally got around to setting it up and I can't seem to get the power button the dock to turn on my laptop.  The button glows white when my laptop is plugged in but the button will not turn the laptop on.  I have my power button option in Windows set to "when i press power button while plugged in, the laptop will go to sleep."  So even while the laptop is connected to the dock via USB-C/thunderbolt and the laptop is on, when I push the power button the dock, it doesn't put the laptop to sleep either--it does nothing. Googling around, I see there is a newer dock called USB-C dock and it's listed as compatible with the 920 whereas as the Thunderbolt 3 Dock is not listed as compatible.  Could this be the issue?   I also have thunderbolt software installed and it detects the dock in the software. I need some help please!

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RELEVANCY SCORE 78

I used the Lenovo System Update (v5.07.0074) and was prompted to download and install (was listed as Critical Update) the Firmware to my Dock.  As always, I closed all applications and sat as the Firmware downloaded. I got the expected prompt to ensure I was plugged in. I then watched as the upgraded prompted me to install. Installation completed and everything appeared to be fine.  I powered down the thinkpad and disconnected. Worked from the living room, then went back to the dock. Connected, and noticed that before I connected the White light on the power button was illuminated. Shrugged, and pushed the power button. Nothing. I un-plugged the Dock, got a cup of coffee, returned and plugged it back in. Nothing. I then noticed that none of the pass-through power was working on the dock.  So, I unplugged it again.  Unplugged everything connected to it, and held the power button down for 15 seconds in an effort. All of this at the recommendation of Lenovo Support. Who, by the way, was very nice and well spoken. Nothing we did worked. I happened to have another Thunderbolt 3 cable in my bag, and no change. I powered up my new X1 Yoga, and connected the cable. No power. This wasn't passing power at all. I confirmed the Intel Thunderbolt app was running, and confirmed that Windows was not even detecting the Dock.  Lenovo is sending me a replacement. I had this one all of a week. Did I miss any other steps while I wait for it to be repl... Read more

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RELEVANCY SCORE 77.2

HiI have 2 Lenovo devices:-Lenovo ThinkPad X1 Yoga, i7-7500U, 16GB, SSD 512GB, WQHD OLED 14inch touch, LTE, W10P-Lenovo ThinkPad Thunderbolt 3 Dock - Port Replicator - (Thunderbolt 3) - GigE-And i have 2 monitors whit a DisplayPort connection. These are connected with the dock. What i try to do:I wont to work whit these 2 monitors and whit the monitor from the X1 Yoga itself. My Problem:It only works with 2 screens at the same time...- If the laptop is open. I can work whit the screen from the notebook and wiht 1 external monitor.- If I close the laptop. I can work whit both external monitors.- But when I open the laptop again. 1 Monitor turn into black. I updated everything whit the Lenovo System Update Tool. Everything is up-to-date.Also the Windows Updates are Up-to-date.Manually checked from the Intel website, also everything is up-to-date. Is there anyone else having this problem? Any advices?Thanks a lot & Greetings   

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RELEVANCY SCORE 77.2

I have a Thunderbolt 3 Dock connected to an X1 Yoga 3rd Gen laptop and daily the dock will briefly disconnect from the laptop. When this happens the two external monitors (DP connected) go blank and I can see that the LAN connection on the Dock drops off and onto Wifi.  This is happening to two different laptops and docks of the same model.  All the latest patchs, software, firmware and bios are installed.  Details:Win 10 (1607)X1 Yoga 3rd Gen (20LE) Bios: 1.12Thunderbolt Controller: 17.3.73.6Thunderbolt firmware: 407.06.12ThinkPad Hybrid USB-C with USB-A Dock Driver: 10011 Nothing seems to resolve it.  I have the laptop and dock on a UPS and the dock is using the correct power supply, plus I'm using the supplied USB 3 cable (0.5m) which is in the back slot on the dock and correct power slot on the laptop.  Any ideas to resolve.  (We will be deploying 100 of these in our office and need a resolution before we can proceed).

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RELEVANCY SCORE 76.4

I connect  a Thunderbolt 3 Dock Gen 2 to my L390 Yoga with firmware 1.18 and the latest dock-drivers 10011. Then I try to make a firmware update of the dockingstation with firmware-version 3.1.61. After unpacking I start the "ThinkPad Thunderbolt 3 Dock Gen2_Workstation Dock firmware update.exe" with admin-rights. Then I get a the following warning: "Can't read Thunderbol controller version, Will skip Thunderbolt firmware update!". After clicking "OK" the updater continue until the next message appear: "Your dock has new firmware can be upgraded, please click [Update] to start firmware upgrade."  and the Current Version shows: = <unknown>.If I click the update-button the programm continue until the message: "Firmware update completed!" appear. A click on the OK-button close the update-program.If a start the firmware-update program again the same error happens. The update-program can't retrieve the current version of the docking station. So is the update-program buggy? The installed OS is Windows 10-1903 with latest patches and the docking with the 2nd usb-c connector from above on th left side. I bought the Thunderbolt 3 Dock Gen 2 because the Lenovo tool "docking-search" told me, that there are 3 dockings compatible with ThinkPad L390 Yoga. So what to do?

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RELEVANCY SCORE 76.4

Not able to get two monitors (Samsung S27E450) plugged into a ThinkPad Thunderbolt 3 docking unit to work with my X1 Yoga (Gen 2).   Montiors connected to docking via DisplayPort cables.   Windows 10 shows the monitors showing up as "Generic PnP" so something is being recognized.  Tried deleting the device in Device Manager, reboot.  Not finding the drivers on the Samsung site.   Any help appreciated. 

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RELEVANCY SCORE 76.4

(Don't know what happened to the first one I posted... Posting it again.) Hey group, While testing the performance of the SSD in my X1Y3 with CrystalDiskMark, I noticed a drastic performance drop in 4KiB Q(ueue)8T(hread)8 when connected to the Thunderbolt 3 Dock as compared to connected to AC power:  Dock: Random Read 4KiB (Q=  8,T= 8) :   318.764 MB/s [  77823.2 IOPS]Random Write 4KiB (Q=  8,T= 8) :   256.349 MB/s [  62585.2 IOPS] AC Power:Random Read 4KiB (Q= 8,T= 8) : 943.671 MB/s [ 230388.4 IOPS]Random Write 4KiB (Q= 8,T= 8) : 1024.264 MB/s [ 250064.5 IOPS] I noticed that with the Dock, the CPU usage during the test was only about 50%, whereas on AC power it was about 100%. (See the attached pictures). With the performance drop, I also heard very audible "coil whine". I can't quite tell if it was only coming from the dock or both the dock and the laptop. All connected devices were unplugged from the dock. The only two cables connected to the dock were the AC cord and the Thunderbolt 3 cable. The noise is NOT heard while using AC power. I thought the noise was just annoying before, but now with this performance drop, I'm a bit more concerned... Based on my experience with Lenovo Tech Support, I don't think I'd get any real advice from them. I was wondering if anyone else noticed the same issue and what do you think is causing it?  Thank so much for your help! ... Read more

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