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Lenovo Staff
Lenovo Staff
Posts: 29
Registered: ‎04-22-2015
Location: US
Views: 3,804
Message 11 of 23

Re: X1 Carbon 6th gen HDMI not working

Hello,

Can you go to device manager and look under System Devices.  At the very bottom you should see the "Thunderbolt(TM) Controller - 15D2"

See attached image.

Pls let me know.

Thanks

 

tommypoulsen
Paper Tape
Posts: 7
Registered: ‎05-28-2018
Location: DK
Views: 3,792
Message 12 of 23

Re: X1 Carbon 6th gen HDMI not working

Well, there does not seem to be any Thunderbolt Controller items in the list

 

 

Highlighted
Lenovo Staff
Lenovo Staff
Posts: 29
Registered: ‎04-22-2015
Location: US
Views: 3,787
Message 13 of 23

Re: X1 Carbon 6th gen HDMI not working

Ok please try this.  Save all your work.  Press the power reset button on the bottom of the system.  Its a tiny hole. You'll need a paper clip.

Press the pwr button.  When the system starts pls check the device manager again and see if the controller is there.  If it is please try installing the Thunderbolt FW and SW again.

Let me know how you get on.

Thanks

tommypoulsen
Paper Tape
Posts: 7
Registered: ‎05-28-2018
Location: DK
Views: 3,760
Message 14 of 23

Re: X1 Carbon 6th gen HDMI not working

Well, now things are happening - after using the reset button as you suggest, the Thunderbolt Controller appears in the list, and now the HDMI seem to be working also.
Thanks a lot of your assistance (I hope this solved it once and for all)

Lenovo Staff
Lenovo Staff
Posts: 29
Registered: ‎04-22-2015
Location: US
Views: 3,736
Message 15 of 23

Re: X1 Carbon 6th gen HDMI not working

Ok great.  I would still do the Thunderbolt updates as it will disappear again.  I had same issue as you and fixed once the FW and SW were updated. 

Let me know if you need anymore assistance.

Once you think this is fixed after a few days can you mark this as Solved pls.

Thanks

ECM1
What's DOS?
Posts: 1
Registered: ‎07-02-2018
Location: US
Views: 3,407
Message 16 of 23

Re: X1 Carbon 6th gen HDMI not working

Thought I would chime in that this fix helped me.  My X1 Carbon had been connecting with no issues for well over a year.  All of a sudden it would  not connect to one of my monitors through hdmi or the docking station (display port would still work).  The paper clip reset worked!  Thanks!

AlvinC
Fanfold Paper
Posts: 4
Registered: ‎06-19-2018
Location: TW
Views: 3,312
Message 17 of 23

Re: X1 Carbon 6th gen HDMI not working

I am a X1C 6th model 20KH user. Also have the similar issue after update the TB3 FW from below URL.

 

https://support.lenovo.com/tw/zh/downloads/ds502615

 

The HDMI is still not working although press the power reset button on the bottom of the system. The TBT3 controller is not shown in device manager. I also retry the FW update tool(n23tf13w.exe) again and again, but it says "No active Thunderbolt(TM) controller found in the system".

 

The TB3 FW and SW are the latest. I have been already try many times but seems not work. Can anyone help me.

 

Thank you.

 

katlund
What's DOS?
Posts: 2
Registered: ‎08-07-2018
Location: US
Views: 2,989
Message 18 of 23

Re: X1 Carbon 6th gen HDMI not working

I have the exact same problem.  I have attempted everything described in this post, to no avail.  My set-up is similar: Thinkpad X1 Carbon Gen 6, Windows 10, 20KG.  The laptop is brand-new and completely up-to-date.

Lenovo Staff
Lenovo Staff
Posts: 29
Registered: ‎04-22-2015
Location: US
Views: 2,742
Message 19 of 23

Re: X1 Carbon 6th gen HDMI not working

Do you see the TBT controller in the device manager?
katlund
What's DOS?
Posts: 2
Registered: ‎08-07-2018
Location: US
Views: 2,738
Message 20 of 23

Re: X1 Carbon 6th gen HDMI not working

Yep.

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