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ThinkPad L540 and Ultra Dock 90W 40A2

Q: ThinkPad L540 and Ultra Dock 90W 40A2

Hi, I have Lenovo ThinkPad L540 and Basic Dock and I want to upgrade dock to Ultra Dock 90W 40A2. I have question about external displays. My setup is 3 monitors Benq GL2250. Right now there are two monitors connected mini-DP on Laptop and VGA in Basic Dock, third one is inactive right now. Could I connect all three monitors to Ultra Dock and have working laptop display simultaneously. I just want to be sure about this solution working and which ports could be used to connect monitors Thanks in advance

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RELEVANCY SCORE 200
Preferred Solution: ThinkPad L540 and Ultra Dock 90W 40A2

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RELEVANCY SCORE 106.8

Will the USB 3.0 ports on a Ultra Dock 40A2 run an external monitor?

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RELEVANCY SCORE 104.4

I have a n employee with a T470 and a Ultra Dock (40A2) together with two displays. A HP Envy 27s and a Thinkvision P27q.She would like to use [email protected] on the Envy and 2560 x [email protected] on the Thinkvision display. The Ultra Dock does only support 1920 x 1200 @60Hz on one DP if I use [email protected] on the other one. Is there any possibility to achieve this?Can I connect one display to the HDMI port on the thinkpad and one to the DP on the docking station? Will this help in any way? Otherwise: It seems like the ThinkPad Thunderbolt 3 Dock is compatible with this T470 (20JNS13U00). Anyone can confirm this?  

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RELEVANCY SCORE 101.2

Hi guys, I'm hoping someone here can help me with my ever annoying problem. I have a T450s running on Windows 10 64-Bit. Latest Intel Drivers. I have an 40A2 Lenovo Ultra Dock. The following configuration is coming out of the dock into the monitors. Channel 1 - DisplayPort (dock) to Mini-DVI (monitor 1)Channel 2 - using DVI (dock) to DisplayPort (monitor 2) Channel 2 is not outputting any video signal at all. Intel's software is not recognising another monitor at all. Their DisplayPort Topology is showing 1 DisplayPort (this could be because the other is not connected). I've tried both display ports and they both work on either channels. I will be bringing in a DisplayPort to DisplayPort cable shortly to try, but shouldn't my DVI to DisplayPort. Something is amiss and it's driving me nuts. Thanks,Ron

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RELEVANCY SCORE 101.2

ThinkPad W540Ultra Dock 40A2NVIDIA Quadro K2100M HELP PLEASE!  I need to hook up 5 additional Monitors (6 including the W540 LCD).  This is for Stock Trading. I have all 5 additional monitors on a monitor stand, it's a sweet setup! I have set the Graphic BIOS on the W540 to Advanced. In Advanced Mode I thought that all of the Video Ports would be live.  Here is what I can get to work: W540 LCD Monitor, two Monitors using the Dock's two Display Ports, and one Monitor using the Dock's VGA Port.  Althhough they work, the resolution is not sharp as expected except on the W540 LCD.  I cannot get the two remaing Monitors to work. I tried using the HDMI Port on the Dock connected to the HDMI on the Monitor, and the DVI-D Port on the Dock, using a DVI-D to HDMI converter cable (HDMI connected to Monitor) and that won't work.  I've also tried using the USB 3.0 cables.  I cannot get two of the 5 monitors to work. Is is possible at all with the setup I have, or do I need to go to a USB Display Adapter?  If I need to go the USB Display Adapter route, can I still use some of the cables I have and only use the USB Display Adapter for the two that won't work.  Or, do I need to get a Plugable 7 Port USB Adapter and connect them all up this way.  Using the USB Display Adapter should I connect them all using HDMI or VGA? Thanks in advance for helping me out, I have multiple hours invested and no hair left!&nbs... Read more

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RELEVANCY SCORE 100

I am trying to connect two Sceptre U27 4k monitors via display port to the Thinkpad Ultra Dock 40A2 and i'm not having any luck. With a Thinkpad x470s) I can get 1 working but the other monitor just doesn't see a signal. The only setup i've gotten to work is one monitor at 4k @ 30hz on a Display Port and the other at 1920x1080 via DVI I have tried:both display port, 4k @ 30hz (<--- what i'd like to get working since both at 60hz isn't an option with this dock I don't believe)one display port, 4k @ 30hz, one hdmi 4k @ 30hz (via hdmi on the back of the dock)one display port, 4k @ 30hz, one hdmi via hdmi port on the side of the laptop Is anyone familiar with what magic combination of cables and ports would allow me to run both 4k monitors at 30hz, via the two display ports at the back of this dock? I would think updating the docks firmware may help ( https://forums.lenovo.com/t5/ThinkPad-X-Series-Laptops/ThinkPad-Pro-Dock-ThinkPad-Ultra-Dock-or-Thin... ) but there inlies another issue.  Our corporate image on these laptops is RHEL 7.5 and I do not see an option to flash any firmware available from linux unfortunately. Any help would be greatly appreciated. 

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RELEVANCY SCORE 100

I am trying to connect two Sceptre U27 4k monitors via display port to the Thinkpad Ultra Dock 40A2 and i'm not having any luck. With a Thinkpad T470s) I can get 1 working but the other monitor just doesn't see a signal. The only setup i've gotten to work is one monitor at 4k @ 30hz on a Display Port and the other at 1920x1080 via DVI I have tried:both display port, 4k @ 30hz (<--- what i'd like to get working since both at 60hz isn't an option with this dock I don't believe)one display port, 4k @ 30hz, one hdmi 4k @ 30hz (via hdmi on the back of the dock)one display port, 4k @ 30hz, one hdmi via hdmi port on the side of the laptop Is anyone familiar with what magic combination of cables and ports would allow me to run both 4k monitors at 30hz, via the two display ports at the back of this dock? I would think updating the docks firmware may help ( https://forums.lenovo.com/t5/ThinkPad-X-Series-Laptops/ThinkPad-Pro-Dock-ThinkPad-Ultra-Dock-or-Thin... ) but there inlies another issue.  Our corporate image on these laptops is RHEL 7.5 and I do not see an option to flash any firmware available from linux unfortunately. Any help would be greatly appreciated. 

A:T470s and Ultra Dock 40a2 dual 4k display port monitors not functioning

I'm thinking my best bet may be to use a Display Port to USB-C/Thunderbolt 3 cable for one monitor and the docking stations display port for the other.

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RELEVANCY SCORE 98

Hi, Everyone. Got me a nice little x270 to replace my old x201.  Happy enough with the machine, but getting it connected to my accessories (monitor, keyb, mouse, ethernet) is a bit of a chore. This machine appears to have a "proper" dock port on the bottom.  Is there a compatible ultradock available for the model 20HN x270?  By proper - I mean, Not USB.  A nice dock I can simply drop the machine into when I'm at the home office.. Thanks!

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RELEVANCY SCORE 98

 Has a solution ever been provided for this.  Several models are doing this.  https://forums.lenovo.com/t5/ThinkPad-T400-T500-and-newer-T/Bitlocker-PIN-USB-C-Thunderbolt-dock/m-p...

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RELEVANCY SCORE 98

I have read a lot and tried updating the firmware - nothing works.When I put the laptop in the docking station - it does not recognize the monitar and also says AC power is not connected when it is. Help appreciated!

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RELEVANCY SCORE 94.4

Hi guys, I'm requesting Lenovo to please add on lvfs (https://fwupd.org/lvfs/) firmwares for the docking station 40A2 The issue I'm having is https://support.lenovo.com/us/en/solutions/ht101460 this "User is experiencing intermittent video loss on external monitor" yes, with 2 different 40A2 currently running Fedora 29 on kernel 4.20 thanks

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RELEVANCY SCORE 85.6

Hello, We have a problem with 2 laptops (ThinkPad X270) that "freeze" on the LENOVO logo when using Lenovo Ultra Dock with monitor Dell UZ2715H.Display Dell is plugged by Display port ports and one USB 3.0 (9 pin - used for display integrated webcam) connected to ThinkPad dock.When notebook turned ON with connected USB 3.0, computer freeze on LENOVO logo (To interrupt normal startup, press Enter) and work only when USB 3.0 disconected, or turned OFF and again Turned ON. Firmware on Dock is 2.33.000 Any suggestion? 

A:Lenovo ThinkPad Ultra (Pro) Dock + ThinkPad X270 (20K6) + Dell UZ2715H

I am just going to guess that computer is trying to boot via USB, so you might try changing the boot order in the BIOS so that Windows Boot Manager or the HD is first.  

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RELEVANCY SCORE 85.2

Wifi disabled and can't open to search on ThinkPad T470s after pulgging in ThinkPad Ultra Dock ThinkPad T470s 20HG

ThinkPad Ultra Dock - 90W USAfter unplugging from ultra dock, wifi will be connected... Does this dock support wifi?

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RELEVANCY SCORE 81.2

Hi, I am looking for some help, I have a T450 that has been working away on a Thinkpad Ultra Dock with no issues, then all of a sudden it will not charge while docked!! Take it out of the dock and charge directly and it works fine, I tried replacing with a new docking station the exact model but again it does not charge the laptop while in the dock, I have switched out the battery and it is still the same. I have fully updated the BIOS etc and still have the same issue, I tried updating the Ultra Dock firmware but run into issues as the firmware update will only run while docked and also has power, but as the laptop is not detecting power I cannot proceed , I tried updating out of the dock but it does not proceed either as it cannot detect the docking station. Everything else works via the docking station HDMI, USB, DVI, Ethernet  all working perfect, has anyone came accross this issue?

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RELEVANCY SCORE 80.4

I'm trying to find a replacement cord for an Ultra Dock that works with a T450s Thinkpad.  Can someone look at theirs and let me know what I need to order?  Suggestions as to where to order also appreciated. 

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RELEVANCY SCORE 80.4

Hello, is it possible to update the Lenovo Ultra Dock Pro to the latest version without a Windows Operating System? https://support.lenovo.com/de/en/documents/ht081248 A bootable ISO for this would be perfect. I use Linux as Operating System installed on a T440p, so a Windows based update is not possible for me. Thanks in advance! Best regrads, Michael

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RELEVANCY SCORE 80.4

Trying to figure out how to charge my Yoga 3, while using my new Thinkpad Ultra docking station. The power USB for the Yoga 3 and docking station USB only work in the Yoga 3 power port. None of the other USB ports on the Yoga 3 will work. Do I need an adapter? 

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RELEVANCY SCORE 80.4

I have a W541 and it always worked well with the dock and dual external monitors, that is until the firmware was updated by Lenovo System Update to the Latest Version: 2.33.000 about a week ago. Now when you boot the laptop in the dock, the post shows on the two external monitors then they go black and seem to disconnect as the power saving icon shows on both monitors. If you undock the laptop at this point and immediately re-dock, the two monitors light up and no more issues. While this isnt a huge issue, it is very annoying since it always worked properly before the update. Any suggestions on a possible fix are much appreciated. Thanks in advance.

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RELEVANCY SCORE 80.4

I am running 2 monitors (Dell U2414H @ 1920 x 1080 60Hz) on my ThinkPad USB 3.0 Ultra Dock.  I also have my Yoga 900 monitor on and the desktop is extended to all monitors.  I have a regular issue where the Displayport monitor turns off for 1-3 seconds then comes back on for no apparent reason.  I have searched the internet and the only similar issue I have found suggestes the dock is under powered to run 2 monitors however that does not seem consistent with what other people are doing.  There is no particular application that causes the issue. Can anyone help?  It's very frustrating waiting for the monitors to come back on. 

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RELEVANCY SCORE 80.4

When connected to the Thinkpad DisplayLink, the driver shuts off useability of the Jack sound ports (on both the computer and the display link). Earlier I could not initiate the driver installation of my USB-ports, and thus could not use the rest of my computers' USB ports -- The Display Links' Ports work. This issue was solved when connencting to the port while the DisplayLink was disconnected.I was connecting a Samsung phone System & Device Firmware/ USB Composite Devices: 10.0.16299.15 peripheral Jack Driver vers. 10.0.16299.15DisplayLink driver vers. 8.3.1905.0USB Root Hub, USB Hub Drivers SuperSpeed and not: 10.0.16299.334USCI USB Connector Manager: 10.0.16299.251eXtensible Host Controller 3.0 10.0.16299.431SAMSUNG Mobile USB Composite: 2.12.5.0Phone Driver: Samsung Galaxy S7: 2.9.317.215Realtek Driver: 6.0.1.8224DisplayLink//Lenovo Audio: 8.3.1888.0 most of rest of drivers are firmware vers.: 10.0.16299.15my processor driver vers is 10.0.16299.371

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RELEVANCY SCORE 80.4

Hi,  I'm using a Lenovo P51 with M2200 graphic card and have a docking station 40A2. I wish to connect the two monitors to my docking station, one is VGA cable and another one is HDMI. When I dock my P51 to the docking station, the monitors could not be detected. I tried to configured my bios setting to discrete graphic setting but nothing changed. Try to put shared on dock display also but nothing works.  When I connected one of the monitor HDMI cable to the laptop directly without going through the docking station, it works perfectly but I could not connect the VGA cable monitor to the laptop without a converter and it defeat the purpose of having a docking station.  Anyone encounter this problem and has a solution for this problem? 

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RELEVANCY SCORE 79.6

Hi.  I'm hoping I can get this resolved on this forum.I just got my system and am trying to connect my 3 external monitors.    My setup is as follows:Monitor 1 - laptop screen - works.Monitor 2 - HDMI out to HDMI in - worksMonitor 3 - DP out to HDMI in via a DP-HDMI cable.  - worksMonitor 4 - DP ou to DVI in via a DP-DVI adapter - doesn't work. I can't figure out how to make this work.I also tried this setup:Monitor 1 - laptop screen - works.Monitor 2 - VGA out to VGA in - worksMonitor 3 - HDMI out to HDMI in - worksMonitor 4 - DP out to HDMI in via a DP-HDMI cable.  - doesn't work. Incidentally in this configuration, when I closed the laptop screen this monitor worked.  Also on a related note, the Nvidia Quadro P500  is sitting idle as the Intel UHD 620 is doing all the work.  How can I control this? Thanks for any suggestions. Sal

A:Thinkpad P52S Ultra Dock and 3 External Monitors

As stayed in PSREF, P52s supports up to three independent displays. Laptop's screen includes in this limit, meaning you can use two external displays at that time. When you close the lid, you can use three external displays. To use more, you'll need some sort of USB adapter to increase such a limit. Regarding other question, you can't disable Intel GPU - it's always active and it's always controls screen output. NVIDIA's dGPU can be configured to be used in selected applications, making them to work with higher performance. P52 and P72 for sure have an ability to disable Intel iGPU, giving the control of screen output to dGPU. Probably P1 and/or X1 Extreme have the same feature too.





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RELEVANCY SCORE 79.6

Hi there, when I undock my X280 from the Ultra dock (notebook closed but running) and open the lid the device will not respond to keyboard or trackpoint input.I need to close the lid again which triggers entering 'energy saving' mode.Then opening the lid again will resume everything to normal. I can reproduce this every time on two identical Docks. Funny thing is, my wifes identical X280 does not show this behaviour but works fine. Any idea what I could try to solve this small (but a bit annoying issue)?Thanks.Q.    

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RELEVANCY SCORE 79.6

Hi,  I am trying to connect three external monitors to my Ultra Dock (2 displayport, 1 hdmi). When I connect the 2nd displayport cable to the dock, the hdmi monitor shuts off. Is there any workaround? Apologies if this is a basic question. Thank you!

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RELEVANCY SCORE 79.6

Yesterday, I updated my T450s and, among other updates,I updated the Ultra Dock 90W firmare to version 2.29.00.  Afterward, when the laptop is docked, with the cover shut, and I try to power up the unit, it won't do so.  When I open the laptop in the dock, the power indicator is green and there is a green light on the function key.  No matter what I try, the machine won't power up after this.  If I force it to shut down and then try to power it up open instead, it powers up normally and both the laptop screen and the attached monitor work and, if I close the cover after, the attached monitor still works.  Obviously, I can use the machine docked with this work around, but I can't figure out why it won't work when I try to poweer it up closed.  I subsequently updated to version 2.30.00 and the behavior continues. What am I missing here? 

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RELEVANCY SCORE 79.6

Hey guys,I've got new P50s (running W10 x64) with Quadro M5000M, and Ultra docking station for it. I want to use 4 external monitors in any configuration, just that they all work. I tried updating BIOS and Docking station, installed latest Intel and Nvidia graphics driver, power management driver.. everything.I get 4 monitors displayed in Windows display settings, but as soon as I turn on the fourth, one of the others goes dark. Somewhere I read about BIOS setting for Hybrid graphic, but I don't have such setting in BIOS. Any help would be great Thanks!

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RELEVANCY SCORE 79.6

Hello everyone,that's my question:I put the notebook on the docking stationg (lid shut). I push the docking's power button and the notebook turns on (obviously everything's working fine).The only thing is that the led of the docking is totally off, while I guess it should be green as the notebook power button is.Is the power button supposed to be green or this is the normal behaviour?The notebook firmware is the latest one (BIOS LENOVO N1KET19W (1.06 ), 10/03/2016).ThanksGiovanni

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RELEVANCY SCORE 79.6

 Hello everyone,that's my question:I put the notebook on the docking stationg (lid shut). I push the docking's power button and the notebook turns on (obviously everything's working fine).The only thing is that the led of the docking is totally off, while I guess it should be green as the notebook power button is.Is the power button supposed to be green or this is the normal behaviour?The notebook firmware is the latest one (BIOS LENOVO N1KET19W (1.06 ), 10/03/2016).ThanksGiovanni

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RELEVANCY SCORE 78.8

I'm using a Lenovo Thinkpad Ultra usb 3.0 dock (40A8) with two 1080p monitors (HDMI + DisplayPort). Using the display on the laptop as my third monitor. I have my USB mouse and keyboard plugged into the dock as well as headphones and gigabit ethernet. I also have a second gigabit ethernet dongle plugged into one of the usb ports on the dock. The dock is paired to my Thinkpad P52 workstation. My issue is that while I'm working my display will freeze (mouse, keyboard still responsive on laptop monitor). Then I'll hear the USB disconnect sound, my screens will go black, then they'll come back a few seconds later as if everything is normal. My network connection drops momentarily as well. At first this was just annoying but I've recently moved over to a soft phone and now this causes big problems. When the dock 'restarts' I lose my audio connection to the phone and the brief network connection drop causes my call to drop. I've tried all the basic stuff such as updating the DisplayLink drivers to the latest, turning off USB selective suspend in power settings, using a different usb port. Is this problem specific to my dock or is anybody else experiencing this issue?

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RELEVANCY SCORE 78.8

I have ThinkVision monitors connected via VGA and the display port. I have a 4k TV connected to the DVI on the back of the docking station. I am able to extend my desktop on the two ThinkVision monitors but I am not able to detect the TV to use for my third. 

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RELEVANCY SCORE 78.8

Hiis there a benefit of the ultra dock 170w for L570?https://s3.amazonaws.com/isby/lenovopartnernetwork.com/upload/4/docs/presentation-thinkpad-docking-s... I?m interested in 3 things -  1) I want external display digital UHD @ 60Hz & analog FullHD @ 60Hzthe dock offers that, and no more at 60Hz, and to my understanding disables the built in laptop graphics ports, which also offer that - so what?s the benefit? 2) I want good amperage on usb 3.0 ports - does the 170w dock offer more power via USB than built-in laptop ones? 3) Does it disable the built-in USB? Thanks! 

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RELEVANCY SCORE 78

Hi I have searched on Lenovo's pages and cannot find any documentation that confirms that "Thinkpad Ultra Dock" docking station (in my case 40AJ0135EU) is compatible with the latests T490(s)/T590(s) series. Does anyone know? ThanksKind regards

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RELEVANCY SCORE 78

When the P50 is docked with the lid closed, my two Dell 23" monitors (P2317H) connected via  2 Display Ports both recieve a signal from the dock. When the lid is opened, one monitor will lose signal. I have updated the Nvidia driver on the P50, as well as the firmware on the dock, which did not resolve the issue.  I have also tested this with a differnt P50, dock, monitors, and cables with the same result. OS: Windows 10 64-bitHardware: Lenovo ThinkPad P50, Lenovo ThinkPad Ultra Dock 40A2, Dell 23" Monitors P2317H 

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RELEVANCY SCORE 78

I have a brand new Lenovo ThinkPad L470 (win 10 pro) and a Lenovo Pro Dock. This configuration does not support two digital external monitors (don't get me started...) I want 2 digital external monitors.  Does anybody know if I will be able to support 2 external DisplayPort monitors if I purchase the Lenovo Ultra Dock?  thanks. 

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RELEVANCY SCORE 76.4

Hello every oneI've problem with my lenovo l560 and try describe my problem. 1. When i connected laptop with close cover to the dock station i will get screen on the external monitor.2. When i connected latptop with open cover i've screen on external monitor and on the laptop Problem starts when i connected my laptop with close cover to the dock station then open them. I've only screen on the laptop but none on external monitor. I must use  keys combination like "windows + p" and choose  extent screens to display screen on laptop and external monitor but when i disconnected laptop from dock station and connect again that the same problem. What can i do to solve this problem?My configuration:intel core i5-6300U 2.4 GhzIntel HD 520Windows 10 pro   

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RELEVANCY SCORE 75.6

I have a Thinkpad W540 with a Lenovo Ultra Dock Docking Station (40A20170US). Here is the set up I am trying to get to work:Display 1) VGA Planar PL2010M monitorDisplay 2) DVI Planar PL1910M monitorDisplay 3) DisplayPort Lenovo L2251x Wide monitorDisplay 4) LCD monitor (off) When I have selected Standard Mode under the BIOS display settings, I am able to connect two monitors plus the internal LCD at the same time: one on VGA and the other on DVI, or I can connect one on VGA and the other on DisplayPort.  This allows me to have three displays, including the LCD.  My problem is that I am unable to get a third monitor to work as well.  When I connect a monitor via DisplayPort, the monitor on DVI stops working.  After reading forum posts and whatever else I found online, I learned (maybe I'm incorrect?) that I need to switch to Advanced Mode in the BIOS to be able to use three external monitors.   I then uninstalled drivers (the BIOS instructions state that you are supposed to uninstall graphics drivers before switching to Advanced Mode), switched to Advanced Mode in the BIOS, started up the computer, reinstalled the latest drivers, but now the only screen working is my laptop's LCD screen.  None of monitors are detected by Windows no matter what I try. When I switch back to Standard Mode in the BIOS, two of my external monitors begin working again. My docking station firmware is updated FYI.   Any suggestions ... Read more

A:Unable to connect to 3 monitors to Ultra Dock (Thinkpad W540) in Advanced Mode BIOS Setting

So I fixed the issue for myself and just wanted to post in case somebody else had the same issue.  I took the following steps to fix the issue:[Background: BIOS is in "Standard" display mode to begin with; I had already updated the docking station's firmware first with a program called fwdphb03.exe and then with Lenovo's update utility.]1) In Windows, I uninstall drivers for the Intel Graphics and K1100 dedicated card.2) Restart, go into BIOS, switch to "Advanced" mode under the Display tab.  I also have the option selected to start up on the docks in the BIOS Display tab.3) Booted into Windows (8.1) and it looked like the Intel Graphics drivers were automatically downloaded. I then ran Lenovo's System Update utility to get the latest video drivers.  Under the optional tab in the Lenovo update utility, I selected the "Optimus" drivers and hit download/install.  It installed, and I had to restart.4) Booted into Windows again, ran Lenovo update utility again, and again it had a video driver to install when I checked for updates.  I installed that, had to restart again.5) Booted into windows, checked screen resolution and saw that no external monitors were showing.6) I then decided to get a driver straight from the source.  Downloaded: the following file from  Nvidia: 334.95-quadro-notebook-win8-win7-64bit-international-whql.exe.  I ran the installation, it did a "Clean" installation with everything checked off. It automatically unins... Read more

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RELEVANCY SCORE 67.6

Ok, I have seen other forum posts, but they are old, and do not seem to be the same.  My current problem is that whenever my T450s laptop (i7-5600U, 12GB RAM, Samsung 850 EVO 500GB with firmware up-to-date) is connected to my Thinkpad Ultra Dock (type 40A2; FRU 04W3951, firmware 2.30), in order for my computer (and attached monitors) to work, the laptop MUST BE OPEN and the LAPTOP power button ONLY can be pressed to turn the system on.  If I have the lid closed and I press the power button on the docking station, NOTHING will happen except blank screens on ALL devices and the laptop's red LED turning on. -U560 So, how did I arrive at this problem?  The unit has the 90W power supply (good or bad, it has been working for over a year, perfectly fine!)  I have Windows 10 Pro (64-bit) installed, and had dock station firmware version 2.22 installed.  Around two weeks ago (~15 August, 2016) the latest Windows "update" (I believe this started with build 14393-release160715-1616, which I am currently running) updated on my system.  At that point, I ensured all my other drivers were current and updated the dock firmware to 2.29 (because the "readme" file said it "fixed screen flickering in some monitors.")  Well, this firmware version did fix the "flickering," but now I am required to have the laptop lid open when "docked."   I "sucked this up," assuming the issue would be addressed soon in a new firmware update.  To... Read more

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RELEVANCY SCORE 65.6

Is there much of a Difference Between the Thinkpad T540P and the Thinkpad L540? Besides the processor? Do they look similar as to the keypad, touchpad, and the display working. Will I see any difference since I currently own a T540P. From the picture I have seen they look similar but again pictures can misrepresent the actual laptop. Any information would be helpful. Thanks in Advance...Oneida101 

A:What is the Differences between a Thinkpad T540P and a Thinkpad L540?

Main differences:
 
- actually most of CPUs are same. Difference comes to individual model
- case material used (L540 = PC/ABC plastics, T540p = glass fibre reinforced plastics
- depending on model, T540p is usually bit thinner and has marginally less weight
- T540p has UltraBay with removable ODD (that can be changed for 2nd HDD), while L540 has fixed ODD that can not be exchanged
- T540p has 2 USB 3.0 ports, while L540 has 1
- T540p has (optionally) backlit keyboard, whil L540 does not
- T540p has optional IPS 3K display, L540 does not ...
- they share some "normal" screens, so experience should be identical 8beside the one 3K)
- keyboards are mostly same (beside backlit one)





***Disclaimer: I am not Lenovo employee. While I do work for Lenovo Partner, all my contributions are my personal, non-official and not that of Lenovo or my employer.

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RELEVANCY SCORE 63.2

Hello everyone, I recently bought a Thinkpad X1 Extreme and I am now locking for a suitable Thunderbolt 3 dock. Although I've read a lot of posts about various docks I am still a little consfused about which one to choose. It seems like the following ones would all work with the X1 Extreme:1. Lenovo ThinkPad Thunderbolt 3 Dock Gen 2 135W:https://www.lenovo.com/ca/en/accessories-and-monitors/docking/universal-cable-docks-thunderbolt/Thun...2. ThinkPad Thunderbolt 3 Workstation Dock (170W):https://www.lenovo.com/ca/en/accessories-and-monitors/docking/universal-cable-docks-thunderbolt/Thun...3. ThinkPad Thunderbolt 3 Workstation Dock (230W):https://www.lenovo.com/ca/en/accessories-and-monitors/top-tech/Thunderbolt-WS-230W-dock-US/p/40AN023... Please correct me if I am wrong but to me it seems as if the only difference between these docks is that the workstation ones come with two AC adapters each and a special Thunderbolt/Power cable to avoid using two different cables. Or are there any other technical differences? So if I am okay with a two cable solution couldn't I just use the Lenovo ThinkPad Thunderbolt 3 Dock Gen 2 135W and connect it via Thunderbolt while at the same time use my 135W AC adapter to charge the laptop? Thanks a lot in advance.

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RELEVANCY SCORE 62.8

I just bought new ThinkPad L540 and i have a few questions regarding m.2 Slot. 1. What is max capacity size for it(i know phy. dimension 22x42)?2. Is the m.2 slot SATA or PCIe?3. Can i use it for primary drive (windows). Thanks in advance.Thomas

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RELEVANCY SCORE 62.8

I installed a ssd m2 of Transcend model 420s. The Thinkpad L540 got a success. The pictures I have taken below. However there is a problem with the m2 drive on the L540 which is its very high temperature cause I think because the m2 slot of the L540 is designed too close to the L540's CPU. This in the long run is very bad for the M2 SSD.

A:M2 SSD on thinkpad l540 too hot

I searched and there are other similar reports but no fixes.  Some responses say it will shorten life, and some say it doesn't matter.  I looked at Transcend's datasheet and they say that normal operating temperature is between 32C and 70C so if it were mine, I wouldn't worry

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RELEVANCY SCORE 62

I am trying to 'dual display' my L540 to my TV. I have a mini dvi port (or whatever it is!) converter plugged into that port with an HDMI lead plugged into that and then into an HDMI socket on my TV. I assumed this would then be dead easy to just select dual monitors or similar and the laptop output would be duplicated on the TV. However I'm not getting anything on the TV. Is there some other setting I need to change other than in Control Panel>All Control Panel Items>Display>Change Display Settings? Under Muliple Displays I select Duplicate these displays and Apply but all that happens is that the display resolution on the laptop goes really big ie nothing appears on my TV. It feels like the laptop is not even detecting anything attached to the mini DVI port - would this be driver related or is there something else I'm overlooking? Really want to fix this as I'm hoping to be able to play Youtube vids (with sound) from the laptop through the TV and maybe also Amazon movies. Any help gratefully received!!

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RELEVANCY SCORE 62

I'm considering building an external GPU setup for my laptop (thinkpad L540), wanted to check if anyone had done it. I saw it listed on techinferno's list of candidate systems, so I'm assuming it is possible. Does the L540's PCI slot allow for this sort of thing (or might there be another way of doing it?)? I guess my main concern is that there's some aspect of that connection that won't support an eGPU and this whole thing would be a waste. Whether you've done it or not, any insight is appreciated!

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