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Thinkpad X1 Yoga (3rd Gen) Stuck at Black Screen After Enabling "Thunderbolt BIOS Assist"

Q: Thinkpad X1 Yoga (3rd Gen) Stuck at Black Screen After Enabling "Thunderbolt BIOS Assist"

System Specifications:- X1 Yoga (Gen 3) with i7-8650U and 16GB RAM- BIOS Version: 1.19- EC Version: 1.08 Hello, exactly one week ago, I changed enabled "Thunderbolt BIOS Assist" in the BIOS to support Linux. Following this, the system refused to boot to anything but a black screen. Thus, I sent the machine in for depot repair. I just received the machine back again today and the same thing occurred after enabling the same setting. After a long series of calls, I was told that no one is authorized to report BIOS bugs and that I should post here instead. I sincerely hope this is fixed, as this is a major error that required a motherboard replacement previously and will most likely require one again. I have started a new ticket for this repair and will be receiving a box tomorrow. However, I wanted to make sure this is passed along to someone who can fix this error.

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RELEVANCY SCORE 200
Preferred Solution: Thinkpad X1 Yoga (3rd Gen) Stuck at Black Screen After Enabling "Thunderbolt BIOS Assist"

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RELEVANCY SCORE 94.8

Hello, Today I receaved my Thinkpad X1 Yoga 20JE and after I did a BIOS update the Yoga had a black screen. I followed the instructions of the BIOS update and the battery was fully loaded and the Yoga was connected to the power.Now the screen is black and the LED in the power button is blinking green. The yoga is warm on the backside so it must be running. But I can't restart when I longpress the power button and the battery is inside so i can't put it out.I also installed some other drivers with the Lenovo update tool and maybe windows did also update.what could I do to make everything running again? Did I brick the BIOS?   

A:Thinkpad X1 Yoga 2nd black screen after BIOS update

So, when you press and hold the power button, it doesn't shut off?  It is a new machine, almost certainly with a warranty.  Don't mess with it.  Call support

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RELEVANCY SCORE 94.8

Hi,i have Lenovo ThinkPad T470 (LENOVO 20HD0002MC) and recently has started a strange problem:While booting at first Lenovo logo shows up (where you can get to BIOS by Enter key) and right after screen goes black. When i power down laptop and boot again (sometime few times) intead of the black screen there is a prompt for Bios password, like it should have and booting continues to OS.Enter key for BIOS doesnt work while it slill get stuck on black screen just right before it loads the BIOS (after trying few times with power -off/on it gets to BIOS and i can boot normally)I have BIOS firmware updated to the latest version, so as well drivers for hardware.Im not aware of any change that could potentionally start this issue, maybe after updating bios to some newer version.Otherwise im using Windows 10 with latest updates, but i dont think this could cause the issue as its way before windows loading.Thanks for the help.

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RELEVANCY SCORE 94

My S1 Yoga, 20CD-00B1US, is stuck with the screen off and the power LED stuck on. When I try to push or hold the power button it beeps two short beeps and the LED stays solid. I was running the Lenovo Bios Update Software directly from their site. The power cord was plugged in and no other programs were running (aside from background programs). Now it is just stuck like this. Any thoughts or help would be great. I can't even get it to force shut off. Thank you in advance!

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RELEVANCY SCORE 88

Hi there, I have a brand new Thinkpad X1 Extreme.I heard of a problem regarding some new generation Thinkpads with a BIOS option called "BIOS support for Thunderbolt", which is needed for a proper running Linux installation.On Notebooks like the P52 or some Yogas enabling this option effectively *bricks* the device.See: https://forums.lenovo.com/t5/ThinkPad-P-and-W-Series-Mobile/Lenovo-P52-bricked-by-selecting-BIOS-thu... Can anyone of you confirm that this behaviour appears with the X1 Extreme as well? Or does it not? Has anyone tried it yet? Dear Lenovo Admins/Techs: could any one of you try this setting out with one fresh device? I want to install Linux on a second SSD (Linux Mint 19), I managed to get into GRUB loader via USB, but on startup the machine hangs completely, showing a "kernel panic" with some log lines regarding "thunderbolt", so I presume, I NEED to enable "BIOS support for Thunderbolt". Anyway, simply knowing that there *may* be a BIOS setting, that effectively *destroys* me notebook makes me completely uncomfortable.  Could you please confirm, the setting is safe OR tell me, that it is NOT safe AND you are working on a solution? Thanks in advanceB.  

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RELEVANCY SCORE 83.2

This is showing up since last couple of hours. Only change made was to update the latest BIOS update from Lenovo.Pressing the power button makes 5 beeps (beep-beep, pause, beep-beep-beep) and nothing else happens. Please help!   

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RELEVANCY SCORE 82.4

This is showing up since last couple of hours. Only change made was to update the latest BIOS update from Lenovo.Pressing the power button makes 5 beeps (beep-beep, pause, beep-beep-beep) and nothing else happens. Please help!   

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RELEVANCY SCORE 80

 Hi all,First post!  My Dad's Lenovo laptop goes to a black screen when starting up, so is unusable.I haven't seen it in the flesh yet but have started to research things for him and have found that 'black screen' shows up quite a lot for Windows 10 and Lenovo PCs! We were so impressed with my Dad's PC I've ended up with the same model myself:Lenovo YOGA 500 Convertible Laptop, Intel Core i7, 8GB RAM, 256GB SSD, 15.6" Touch Screen.Also labelled as: Yoga 500-15IBD Laptop (ideapad)  I see some people mentioning hardware failures and others device driver problems with the graphic card etc. but haven't read a definite cause/fix for this so far. I've just found this recent critical BIOS update for this PC which mentions the black screen problem:Software name: BDCN63WW Version 63[Important updates] Fix Win 10 lid close black screen issue.http://support.lenovo.com/gb/en/products/Laptops-and-netbooks/Yoga-Series/yoga-500-15ibd/downloads/D...I haven't seen this mentioned in the forums? Has anyone else used this?If the PC always boots to a black screen I'll obviously have trouble installing this! I'm hoping that it will boot in Safe Mode or I'm going to have some trouble installing it?! I don't know whether to install the BIOS update on my own machine which is running fine - I think I'll wait until I see my Dad's laptop first which will be in a few weeks. Has anyone had any experience of this BIOS update or other comments on this?Thanks. &nb... Read more

A:Yoga 500 'BLACK SCREEN' - BIOS update: "[Important updates] Fix Win 10 lid close black screen issue"

I'm still wondering about this... I've just updated the Lenovo Companion after seeing it mentioned in another thread. It looks like this s/w is supposed to scan the PC and recommend Lenovo updates - critical and nice to have ones. Initially the Companion was showing a critical update for Lenovo SHAREit and a recommended one for my BIOS. It says I'm currently on BDCN28WW and offered something like v61 and not the 63 I mentioned in my first post? After letting it update SHAREit and re-scanning the BIOS update is no longer being offered and still shows me on v28 ??? I'm not sure I trust this 'Companion' app!My laptop seems to be running fine so I don't want to break it updating the BIOS if it's not required. For all I know my Dad's broken one may be broken because it upgraded?! Does anyone else use/trust the Companion app?And has anyone else seen it change it's mind on recommended BIOS updates?Thanks.

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RELEVANCY SCORE 80

Hi Everyone! I have a Thinkpad Yoga 12 and recently I am experiencing a rather serious problem with the machine.If I have a drive in it, it will simply not start the booting process and will freeze on the "press enter to interrupt..." screen. Whenever I remove the disk (SSD) the computer starts and I can access BIOS/Diagnostics/Etc. but when reinserting the SSD everything stops and the computer freezes on start.This problem is very annoying because without a proper boot I cannot update the BIOS or do anything with it at all. Did anyone else experience something similiar?I checked the SSD in a different computer and it works without a problem.

A:Thinkpad Yoga stuck on boot screen

Hanging on startup with a disk inserted would most likely indicate either a bad SSD or a bad SATA control circuit (motherboard).  If the disk is OK, that leaves only one part.  

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RELEVANCY SCORE 78.4

After reading through dreaded black screen issue for other models, I am checking if the Thinkpad Yoga also has the black screen issue. Given that this happened barely inside a month after the warranty expired, this has solid changes to be the last lenovo product in the family. Issue: I returned one home from work to wake up my sleeping Lenovo. Noticed it seemed to be in a dark screen mode with nothing showing up. So tried to press a few buttons and then finally powered off using the button. Upon restart, I could see the Lenovo sign and option to press Enter to check other options and I ignored like usual happy path scenario and let it go. At the time it usually starts showing the Windows screens, I see nothing happen. A dark screen with all the keyboard lights still working but no screen. Connected to projector to see if the login screen shows but it did NOT. Tried to restart few times, reset using the pinhole at the bottom, ran diagnositcs and tried to refresh system etc using the troubleshoot options, checked the BIOS settings - all of which show up on screen and the LCD test pass like a charm but the Windows boot does not work. Thinkpad Yoga 15 running on Windows 10 pro. 20DQ machine type. The frustarting thing is warranty just expired end of July, phone support wont even discuss the issue since it is expired. I spent good amount of days thinking about spending a lot on this laptop last year only to reach a point within one year I might have to spend few mor... Read more

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RELEVANCY SCORE 77.6

Hello,  I used the Lenovo-Tool to automatically check what needs to be updated and followed the recommendations. It was a NVIDIA-Driver update for security reasons and about 10 - 15 other updates. What I noticed late was that there was also a Bios update recommended and selected. However, I tursted in Lenovos automatic update meachnism. The updates ran trough, despite the NVIDIA-Update which was marked by a red cross. Also the Bios update started and mentioned not to turn off the computer. A Dos-Box under my Windows 10 appeared and disappeared and the computer wanted to shut down - which was happening in a normal way. But now the screens were black, the computer was off. After a while, I switched it on again - the fan went on again but nothing happened.  Which means: - The screen is black all the time (as if it was broken, no text is displayed)- External screens, connected via dockingstation or HDMI are black- Computer did not display anything when connecting a bootable USB-Stick with free DOS- Interestingly, the computer is warm and the fan sometimes changes its speed. What can I do now? I assume that something went wrong with the BIOS-Update. Is there anything I can do on my own? Can this problem be fixed by Lenovo? Thank you for your replies! Best regards Nic4

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RELEVANCY SCORE 76.8

Hello. Recently I acquired a ThinkPad Yoga S1 and now I have a problem with black screen. external monitor works fine, touch also works.I just cant get picture on laptop. laptop is running lastest BIOS 1.35/1.26same issue persist on windows 8.1 and windows 10. The problem start when the, Intel HD graphics drivers are installed. eny suggestions ? Best regardsMikkel

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RELEVANCY SCORE 76.8

My X1 all of a sudden has a black line on the screen when the brightness is higher than ~ >40%. It's the OLED touchscreen version. It looks like this:  And without a question...happens 2 months right after the warranty expires. Already contacted technical support; anyone has a similar issue? Is a screen replacement most likely the only solution?

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RELEVANCY SCORE 76.4

Dear Lenovo support, after less than one week of use, today I entered the BIOS to modify the "Thunderbolt BIOS Assist Mode", also to disable the "Trackpoint" as both of them are required to use Linux effectively in this laptop [so it seems]. After doing that, the laptop is now stuck on a blank screen, no bleeps or anything. I can shut it down, then the black screen comes, it is not possible to access any meny as the screen just remains black. Keys and leds do work, also pressing F1 after boot makes the laptop bleep. I have tried using the reset pin, the laptop shut down but no change. What's the next step to proceed. Best regards, E. p.s: This is a X1 Yoga 3rd gen i7 8650U + 16GiB. Given the price of this laptop, the large number of issues including in my case, bad sleep support (missing S3), pen stuck inside case requiring a support call, bad behavior of trackpad and fingerprint reader on suspend, etc... it is fairly disheartening. I wonder if MS convinced you to make such a mess in order to sell more Surfaces, I dunno, but the experience was not good and a lot of valuable work time has been lost in what it is a top professional laptop == that's a no go.

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RELEVANCY SCORE 76

Please help!! My Lenovo Yoga wend to a completely black screen and will not power down or reset itself
 

A:Lenovo Yoga Thinkpad - black screen, wont shut down

How to remove the battery from a Lenovo Yoga ThinkPad
 

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RELEVANCY SCORE 76

Yesterday when using my pro, I let the battery run completely out. When I went to use the computer today, the computer gets stuck on the white lenovo screen.Computer will not enter any boot setups or bios options unless the hard drive is removed. I can run the computer without the pcei hard drive when using an external usb hard drive. Not really sure where to go fron here. I've tried removing the hard drive, booting from a flash drive, then reinstalling the pcei drive but it does not show up at all even when searching for it through the command prompt. Thinking I may have a bad hard drive but I'm at a loss at the moment













Solved!

Go to Solution.

A:Yoga 2 Pro stuck on BIOS screen

Which OS are you booting from the flash drive? Do you happen to have an mSATA to SATA adapter or another machine that has a spare mSATA slot?

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RELEVANCY SCORE 76

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 75.2

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 74.4

I have some issues with touch screen and I've entered the Lenovo website where I was suggested to upgrade my drivers. A searching agent from the website verified my drivers and suggested among other that the bios needs upgrade. I accepted the proposed downloads and the first one that start was the bios upgrade. I ran it and after the first restart the laptop got stuck on boot menu(picture attached). If I hit enter I get here again. If I press escape I get here again. Please give me some solutions to this problem. Thank you 

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RELEVANCY SCORE 74.4

have anyone seen the 16.0.0.2-R0STF14W 2018/08/07 updater fail to update the Thunderbolt firmware? i tried both manually download the packagehttps://pcsupport.lenovo.com/ec/en/products/LAPTOPS-AND-NETBOOKS/THINKPAD-X-SERIES-LAPTOPS/THINKPAD-...orvia Vantage, both got no error message, but the firmware wasn't updated.completly running Detect2016.exe said the build ID is still R0STF13W, release note said it should have go to R0STF14WNVM image is 14 though. Vantage wil detect machine has old version and want to do it again.  I let it do it three times, same things. Thunderbolt Driver has been updated to 17.3.74.8 (package version 17.3.74.400) before firmware update 

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RELEVANCY SCORE 74.4

Everything is working except - no sound via monitor.  Have updated audio drivers,  Suggestions??

A:Yoga X1 ThinkPad thunderbolt LG Monitor Connected via DisplayPort - No Sound

You might need to enable it. 
 
With the monitor connected, turned on and displaying your computer's desktop:
 
Right click on the speaker icon in the taskbar and select "playback devices." 
 
In the white area of the dialog box, right click and make sure both "show disabled devices" and "show disconnected devices" are both checked.
 
Right click on the various playback devices to make sure they're all enabled. 
 
If you start something with audio, you should see the little green "meters" bouncing on one of the devices. Right click that device and set it to default.

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RELEVANCY SCORE 74.4

Hello,This morning i try to flash original 2.07 BIOS on my Thinkpad Edge E145 => flash procedure OK but black screen after reboot :'(Does anyone can help me ? PS : i already try to take off during 1 hour the cmos batteryHelp me please

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RELEVANCY SCORE 74.4

N00b here. Installed Linux Mint on my lenovo thinkpad T420 a few weeks ago but could not boot into Linux. Eventually tried using Rescataux Beta on a usb. First I used the easy UEFI repair, which didn't work, so next I tried boot-repair. This worked, I could get into the OS. However, now I can't get into the bios, it just displays a black screen when I press F1 during loading. I tried doing a bios update, which appeared to go fine, but this didn't resolve the problem. I have no idea about what boot-repair does so I don't know where to look for a fix. Before I did boot-repair, I could get into BIOS but not Linux, afterwards, I could get into Linux but not into BIOS. Based on other posts, I've taken out the battery, and held the power button down for 30 seconds, and I've also sent @someotherguy a PM as I've seen suggested in other posts, but had no response.   # dmidecode 3.0
Getting SMBIOS data from sysfs.
SMBIOS 2.6 present.
63 structures occupying 2421 bytes.
Table at 0xDAE9C000.

Handle 0x0000, DMI type 134, 16 bytes
OEM-specific Type
Header and Data:
86 10 00 00 00 53 54 4D 20 01 01 00 00 03 01 02
Strings:
TPM INFO
System Reserved

Handle 0x0001, DMI type 4, 42 bytes
Processor Information
Socket Designation: CPU
Type: Central Processor
Family: Core i5
Manufacturer: Intel(R) Corporation
ID: A7 06 02 00 FF FB EB BF
Signature: Type 0, Family 6, Model 42, Stepping 7
Flags:
FPU (Floating-point unit on-chip)
VME (Virtual mode exten... Read more

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RELEVANCY SCORE 74

It appears that the only way to report a BIOS bug to Lenovo is to post in the Forum (at least that is what hardware support told me), so here goes! Base system:20HF-CT01WW (T470s)BIOS: 1.11 (issue also showed up under 1.10)Windows 10 Pro Edition, Creators Edition, fully patched. Behavior has been observed both on a freshly built SSD (Samsung 960 EVO 500 GB) and on the shipped Samsung 128 GB SATA SSD with the shipped Windows install.Thunderbolt Firmware: n1wth02w.exeThunderbolt Drivers: n1wta10w.exeBIOS Issue related to Wake On LAN and Thunderbolt 3:"Wake On LAN" (Config -> Network) will be referred to as WOL"Thunderbolt(TM) 3" (Security -> I/O Port Access) will be referred to as TB3Using F9 in the BIOS to select defaults and then setting WOL to Disabled and TB3 to Enabled results in:Booting with AC power has no problems. The Thunderbolt port only shows up in Device Manager when the Thunderbolt firmware utility is run - it appears that Thunderbolt ports dynamically attach to the PCI bus only when necessary (i.e. firmware utility asks it to turn on or a device is plugged into the port).Booting with battery from a cold boot (machine powered off for at least 15 seconds) results in a hang with the windows boot time circle of dots cycling endlessly. Powering off the machine at the circle of dots, waiting a second or two, and then powering on the machine usually results in a successful boot into Windows 10.Once the notebooks successfully boots under battery power, restart... Read more

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RELEVANCY SCORE 74

Hi guys, I just want to post an issue that I'm experiencing for your reference. My P50 machine is docked and connected with an external display. When its bios is upgraded to the latest two version, i.e. version 1.39 or 1.40, it cannot be started up properly at docking condition. The external display is dark, while the LCD display seems stuck at "LENOVO" screen. I am unable to access the bios mode at that time. However, when I undock the machine, it begins to start up and ultimately enters  Windows. Then I dock it back, everything works well. I restart the machine and it can also start up properly to Windows. But if I try a "cold" startup, the issue comes back. Now I downgrade the machine to bios version 1.38 and everything works fine. I figure that there could be something wrong with the latest two version of bios. If you want to upgrade your bios and you have the similar configuration as I have, please be aware that you might experience the issue. BRJin

A:Thinkpad P50 STUCK at STARTUP screen while docked and ported with latest two version of BIOS

I don't have a P50, but it would help someone who does to know how the external display is connected

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RELEVANCY SCORE 73.6

All keyboard codes do is change the screen to say "setup" or Diagnostics or Boot. but never past that point. I'm trying to boot from CD or Flash drive to recover.  Sorry for the upside down pic it was right side up. You get the idea. If there is no way to get into the bios then this pc seems done. 

A:Can't get into bios on envy 20. Stuck on black screen

@Realist123 , Hello and thank you for posting on the HP support forums.  Here is a link for recovery of the BIOS. Restoring the BIOS If you are still having this issue please contact HP phone support for repair options. Please call our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the link below to get the support number for your region. http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html Thank you again for posting and have a great day.

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RELEVANCY SCORE 73.6

Hi, My Yoga crashed yesterday after discarding some changes before exiting my bios and now it won't boot. The keyboard lights up but the display won't. After browsing the forum I've learned that it might be possible to boot in some form of recovery by pressing FN+R and reflashing the bios from a memory stick.  https://forums.lenovo.com/t5/Lenovo-U-and-S-Series-Notebooks/Bios-Recovery-For-ideapad-laptops/td-p/... The guide talks about a .wph file but I can't unpack the bios exe on my desktop because , well, it's not the corect mainboard.  Can someone please extract this bios http://support.lenovo.com/downloads/ds035004 and upload the resulting files? Thank you.  

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RELEVANCY SCORE 73.6

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 73.2

I ordered Thinkpad p70 with RAID 1 HDD's and planned on adding aftermarket m.2 drives (Toshiba OCZ RD400) to setup an m.2 SSD RAID 1 array... First machine they sent failed to recognize m.2 drives.  Now I have a replacement machine with BIOS version 2.08 that will recognize my m.2 drives without a problem, as long as the RAID option in the BIOS is disabled.  As soon as I enable it, it only recognizes the SATA drives and the m.2 drives disappear.  It's strange that when you select m.2 SSD RAID it will only recognize SATA attached drives and allow you to set up a "m.2 SSD" RAID volume with those drives... Very disappointed I can not setup a hardware RAID array with m.2 drives.  Even more disappointed with phone support... calling in is a nightmare where they just pass you back a forth between warranty (which only deals with hardware issues) and premium software support (which says they 'don't help with BIOS, only things inside Windows').   Seems like a BIOS bug or some kind of hardware whitelisting... Does anyone else have a similar issue? I'd appreciate any insight on the matter.  

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RELEVANCY SCORE 72.8

Hello Community! Yesterday i tried to update the BIOS of my Thinkpad P40 Yoga, as suggested by the Lenovo Solution Center. Unfortunately it crashed and now the laptop seems useless... The system was shutting down, after i confirmed to start the BIOS update, the Screen went black and never turned on again. I waited 30 minutes or so but nothing changed. I turned it off and on again. The LEDs light up, the fan starts rotating, quickly turns off, i can turn the keyboard lighting on and off, but the screen shows no sign of life. I read the problem could be, that i had some external usb devices plugged in while doing the update, who knows. I already disconnected the CMOS battery, waited for 3 hours, reconnected it, but nothing changed. Since the warranty is outdated, asking the Lenovo Support is only the last option. Is there any way to reset the BIOS that can be done by myself? I read about some ways to do that on different mainboards, but how does it work on a P40? I am looking forward to your suggestions!  Matthias

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RELEVANCY SCORE 72.8

Hi,After working normally, I restarted my 1.5 years old Yoga 2 and received the "Default boot device missing or boot failed. Insert recovery media and hit any key.".  I used the Novo button to enter the BIOS. Options 1, 3 and 4, take me back to "Default boot device missing" (Normal startup, boot menu and system recovery). Option 2 (Bios Setup) takes me to a black screen. No text, nothing. Pc goes completely idle.  Any suggestions?  The pc was working just fine before I rebooted. Pc runs on Windows 10.

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RELEVANCY SCORE 72.8

Hardware: LENOVO ThinkPad Yoga 370 20JJS0HD00Bios: R0HET41W (1.21 )System: Linux  I believe I have issues similiar to described in https://forums.lenovo.com/t5/ThinkPad-T400-T500-and-newer-T/ThinkPad-T470s-BIOS-bug-WOL-and-Thunderb... With Wake On LAN" (Config -> Network) disabled and "Thunderbolt(TM) 3" (Security -> I/O Port Access) there are system corruptions at boot when run on battery: thunderbolt 0000:08:00.0: NHI initialized, starting thunderboltthunderbolt 0000:08:00.0: allocating TX ring 0 of size 10thunderbolt 0000:08:00.0: allocating RX ring 0 of size 10thunderbolt 0000:08:00.0: control channel createdthunderbolt 0000:08:00.0: control channel starting...thunderbolt 0000:08:00.0: starting TX ring 0thunderbolt 0000:08:00.0: enabling interrupt at register 0x38200 bit 0 (0x0 -> 0x1)thunderbolt 0000:08:00.0: starting RX ring 0thunderbolt 0000:08:00.0: enabling interrupt at register 0x38200 bit 12 (0x1 -> 0x1001)thunderbolt 0000:08:00.0: starting ICM firmwareBUG: unable to handle kernel NULL pointer dereference at 0000000000000980IP: pci_write_config_dword+0x5/0x20 Disabling thunderbolt device fixed problem. After reading above topic I enabled WOL and enabled thunderbolt, the boot runs fine but thunderbolt device is innacessible in system. After reverting to bios defaults thunderbolt is still innacessible I afraid if it died. Can you confirm that ThinkPad T470s BIOS issue affects Yoga 370? If so, can we get same BIOS fix tha... Read more

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RELEVANCY SCORE 72.8

When my thinkpad x1 yoga 3rd gen is connected to my thinkpad thunderbolt 3 docking station and either automatically or manually entered into "modern standby" state, see this thread, i'm finding that my usb 3.0 / type A port connected jabra speak[er phone] 410 power light stays lit vs turning off as it did with my old x1 carbon 2nd gen onelink pro dock setup.  I have this usb speakerphone device plugged into port 7 / usb 3.0 connector shown in the thunderbolt 3 dock user guide page 6 image which is not an always on usb 3.0 / type A connector like port 6 is so i would have expected it to be turned off in "modern standby" state.  I tried plugging it into the other non-powerd usb 3.0 / type A connector ports on dock, i.e. the two port 9 options, and it made no difference.  Any insights as to what is going on hear and how i address this? 

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RELEVANCY SCORE 72

Hi all, I just updated the BIOS (Initiated from Win10), after restart nothing than a black screen and the keyboard lighting up for a second. (Thinkpad Yoga, P40)  I tried to hard reset it (power button shutdown), again in combination with Shift-F8, drained the battery and tried again. But still dead as a dodo. Some ideas before I start the whole support procedure at Lenovo?  Many thanks in advance! 

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RELEVANCY SCORE 72

I updated my bios for the laptop and the laptop restarted and the screen was black but laptop was powered on. Also keyboard backlighting is on. I turned it off and then on hundreds of times and held the power button for 30 secs but still nothing.

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RELEVANCY SCORE 72

I have been suffering the, what seems common, screen flicker issue with my yoga 500 when on battery. After reading through some threads i discovered the problem was either, Drivers or Bios. After trying both drivers from lenovo themselves, and the latest from intel/nvidia the problem still remained.i then tried updating the bios. After windows shut down, the Phoenix bios updater stated a message that the bios had been sucessfully updated. The laptop then restarted and no longer posts or goes into windows. The Nova button also has no function and just causes the keyboard to illuminate and the fan to spins for 10 seconds before stopping.(Same as power button)Any advice?

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RELEVANCY SCORE 72

Dear community of helpful and knowledgeable people, I need to ask you for advise on this issue as I do not know on how to proceed. First some data on the device of interest: Manufacturer: Lenovo?
Series: X-Series
Model: X240
Type-Model#: 20AMS0SQ04
BIOS/UEFI?: 2.39(GIET89WW)
ECP version: 1.17(GIHT32WW)  So here is the story:Context:Spoiler (Highlight to read)It all started with issues related to WiFi. The integrated Intel? Wireless-N 7260 had sporadic and difficult to analyse losses of connection since every other WiFi device connected to this access point do not raise any issues at all so far.After digging through trouble guides and articles I looked up and tried changing relevant advanced driver settings of the chip. Since this did not fixed the WiFi issue I decided to upgrade the drivers.It all started with issues related to WiFi. The integrated Intel? Wireless-N 7260 had sporadic and difficult to analyse losses of connection since every other WiFi device connected to this access point do not raise any issues at all so far.After digging through trouble guides and articles I looked up and tried changing relevant advanced driver settings of the chip. Since this did not fixed the WiFi issue I decided to upgrade the drivers.What happened directly before the black screen occurred:In order to upgrade the WiFi drivers I ran Lenovo Vantage? from the Windows Store?. It showed several upgradable components, e.g. Intel Rapid... Read more

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RELEVANCY SCORE 68.8

Lenovo, it is much appreciated if you can provide an updated BIOS that allows the owner to enable/disable the hotkey function.The advantage is, that the owner can make a clean maiden Windows installation without 3rd party software, or use other operating systems such as Linux that lacks this feature of switching between the hotkey function and standard behavior for F1-F12 keys. Looking forward to this, as it gives me freedom of choice and it also is a key for buying Lenovo products future-wise. Thanks! 

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RELEVANCY SCORE 67.6

System Specifications:- X1 Yoga (Gen 3) with i7-8650U (vPro) and 16GB RAM- BIOS Version: 1.21- Purchased June 2018 Just last week I enabled the Thunderbolt device support in Pre-Boot environment under BIOS (refer attached image). After saving the settings I was never able to restart the system. There was no display (BIOS splash screen) - just the blank screen with keyboard lights on. Pressing F1 gave me a single beep but screen was just dead black, though I could see the screen's backlight. Dropped the machine to Lenovo service center and they have confirmed that motherboard replacement would be necessary. I am surprised (and sad) that merely changing a BIOS setting renders this premium business laptop non-functional! I am also afraid that if I happen to enable Thunderbolt setting in BIOS again, will this scary issue recur and render my machine useless?Lenovo - Please rectify this bug or remove this setting in BIOS completely. I am afraid that after expiry of base warranty if I happen to enable this setting again, who will pay for motherboard replacement? Is Lenovo planning any recalls because of this widely reported BIOS bug issue?

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RELEVANCY SCORE 67.2

I have been working with a user that experiences a problem with his \ key on the built in keyboard on his Yoga 260. When he reboots his PC it acts like its being held down when he gets to his log in screen, also if his pc sits for a while it will happen and move him out of his screen saver. He can tap the key once and it will stop.  We have cleaned they key and it doesnt seem to be physically sticking and when using normally its not an issue.I have reseated the keyboard ribbon cable...I have reinstalled drivers, also ran all the driver updates from the System Update utility. It happens both docked and undocked.  Has anyone heard of such a thing?

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RELEVANCY SCORE 67.2

I have been working with a user that experiences a problem with his \ key on the built in keyboard on his Yoga 260. When he reboots his PC it acts like its being held down when he gets to his log in screen, also if his pc sits for a while it will happen and move him out of his screen saver. He can tap the key once and it will stop.  We have cleaned they key and it doesnt seem to be physically sticking and when using normally its not an issue.I have reseated the keyboard ribbon cable...I have reinstalled drivers, also ran all the driver updates from the System Update utility. It happens both docked and undocked.  Has anyone heard of such a thing?

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RELEVANCY SCORE 66.8

Let me spin a little web for you. It begins with my computer having frequent crashing issues with Starcraft 2, Team Fortress 2, and any other game I play on it. The crashing drove me mad to the point where I just decided to open it up, and put some new heat sink fluid onto the heat sinks.

Now, here is where things get interesting, I got the computer back on but the mouse and keyboard no longer work, I worked my ass of to get the mouse and keyboard to work, and I finally did it. But then the worse happens, my LCD screen goes pitch black. It has the backlight that brightens the screen still, but it still displays nothing. I open the computer (AGAIN) to see what is wrong, and would you believe it, the LCD connector is a bit out of place. (It tips off of one side because it does not go completely inward. So, I took the plug out to find out that some of the tiny golden rods inside of the plug were bent. I straightened them out, and got a good connection in. But, the LCD screen is still black as Mr. Popo from DBZ. Somebody please help me, my life is on that computer and I am low on cash until I get a job, and I cannot get a job without a computer! (Everything is digital, and I am going native)

If you need my specs My computer is a Samsung NP R480 JAN1US
6GB of RAM
Intel I3 processor 2.13 GHz
I believe the video card was 1gb
All drivers were updated before I made this mess.

I am really hoping to solve this problem, if I send this to best buy with my warranty it will take them ... Read more

A:Computer has black screen at start, please assist

Hello Mastershot, welcome to SF!
What kind of connector is it exactly? Assuming from your story it's the cabel side... can you borrow a cable and try?
BTW, how are you posting?

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RELEVANCY SCORE 66.4

After having my yoga 460 for about half a year, using it mainly in normal laptop mode in the office, one hinge got stuck while closing laptop and now allow only for limited movement (I cannot close the lid and cannot open more than slighly over 90deg). Suppousedly those hinges survive over 30 000 openings. Apparently not. Anyone else had problems with low build quality of recent thinkpads? Is it just Yoga, or P40 as well? I'm considering changing for some more robust laptop.

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