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04-14-2021

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P52s no longer pushing video to docked monitors

2021-04-14, 5:51 AM

I have 2x 1440p monitors connected via a Thunderbolt 3 gen 2 dock. I was finishing up some work when I saw Vantage had a dock FW update available. Long story short I ran the update and now windows sees the monitors, it thinks it is sending video to the monitors, but the monitors go into power save mode.

 

Here is what happened in more detail:

Vantage proffered the update.

I accepted and started to gather my stuff to go while it was doing its thing.

After a few min (shorter than my 15 min monitor off timeout) the screens went dark.

I wiggled the mouse, but otherwise left it alone for about 5 min.

My laptop sits under the monitors closed when docked, so I had to shift some stuff around to get to it, but I got the lid opened enough to see a wordy dialog box with a yes/no option at the bottom. 

I clicked yes and the laptop rebooted.

I let it boot back into windows, but the screens were still dark.

I got the laptop out so I could see better and opened vantage. 

After it had loaded it said in the update history that the dock update was successful.

I disconnected and reconnected the dock to no avail.

I disconnected power and USB C from the dock, waited about 10 seconds and reconnected power then USB.

I verified it was approved in the thunderbolt control panel.

I downloaded the FW update and re-ran it. (the updater said it was already on that version but gave me the option to install it anyway.)

I rebooted it when it was done and still nothing.

I checked the windows display panel and saw that the screens were set to mirror but that it should be displaying something.

I set it to extend. 

It correctly detected the resolution of both screens. I could move my mouse off screen for what felt like the appropriate distance, but no picture.

I changed ports on the dock to which the monitors were connected (one is DP and one HDMI so I changed both to the unused port.)

Both detected by windows, but no video on screen.

Plugged HDMI screen into laptops HDMI port and it worked, tried dock again, nothing.

 

I am out of ideas of what to try. I did some searching, but all I got was people taking about having issues and then getting them fixed by a firmware update. Any help would be appreciated!

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4 Posts

04-14-2021

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P52s no longer pushing video to docked monitors

2021-04-14, 5:56 AM
I just got video back by moving from the front combo USB C / Docking station port to the rear solitary USB C port. Apparently doing the firmware update F'd one of my ports. (Tried flipping the cable and putting slight pressure on it, but nothing engages the displays on the front port now)
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304 Posts

09-04-2019

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Re:P52s no longer pushing video to docked monitors

2021-04-14, 6:21 AM

Update with nothing attached to dock and only the TB3 cable to the laptop. You might try it again.

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2250 Posts

03-11-2020

Greece

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Re:P52s no longer pushing video to docked monitors

2021-04-14, 8:58 AM

Hi JEShumMPK,

 

I'd also suggest doing a BIOS reset of the machine and a reset of the docking station as well, by following the steps below:

 

BIOS reset 
- Press the power button to completely shut down the unit.
- Press the F1 repeatedly on startup to enter BIOS, or: 

- To boot into BIOS from Windows, do the following:

- Select the Start button, then choose Settings > Update & Security > Recovery. Under Advanced startup, select Restart now. After your PC restarts to the Choose an option screen, select Troubleshoot > Advanced options > UEFI Firmware settings

- When Navigate to the "Restart" tab
- Press "Load Default Settings"
- Save & Exit changes or F10.

 

Reset of docking station:

- Unplug the dock from power, computer and external devices.
- Hold the power button on the dock down for 45 seconds. 
- Plug everything back in.

 

 

Regards

 

Voithos



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4 Posts

04-14-2021

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Re:P52s no longer pushing video to docked monitors

2021-04-15, 6:01 AM

I got the chance to test with another dock today and the laptop appears to be fine. It looks like my dock works in DP fallback mode (Rear USB C port is only DP for video) but when in TB3 mode it will not display video though it reports that it is. I will try running the update again with all but power and the USB cable connected and see if it works.

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  • Message 6 of 8

Re:P52s no longer pushing video to docked monitors

2021-04-15, 6:13 AM

Update output:

Thinkpad Thunderbolt 3 dock FW utility Version=3.1.68.0 (2021,1,11)

Firmware package version: 3.1.68.0

===================================================================

Date: 2021/04/15Time: 00:03:21Initializing...

Tbt NVM version = 62.00

Pd FW version = 1.38.07.04

UsbHub1 FW version = 5163

UsbHub2 FW version = 5133

MCU FW version = 0.30

DpHub FW version = 5.05.005

Audio FW version = 04-0E-92|

Update firmware start at 2021/04/15, 00:03:38 ---

Disable RTD3

Audio FW version = 04-0E-92 [Upgrading to 04-0E-92]

Updating Audio firmware...

Audio update success.

DP Hub FW version = 5.05.005 [Upgrading to 5.05.005]

Updating DP hub firmware...

DP_HUB update success.

USB Hub FW version = 5163 [Upgrading to 5163]

Install USB3 filter driver...

Updating USB hub firmware...

Wait 15 seconds

USB_Hub update success.

TBT NVM version = 62.00 [Upgrading to 62.00]

 

Wait 35 seconds

TBT update success.

MCU FW version = 0.30 [Upgrading to 0.30]

MCU firmware updating...

MCU update success

Wait 60 seconds

Firmware update completed!

Total took time: 08 minutes and 40 seconds

 

Unfortunately after the update and a restart it still does the same thing. If I swap the other dock in with the same power supply/cables it works just fine.

Any other ideas?

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304 Posts

09-04-2019

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  • Message 7 of 8

Re:P52s no longer pushing video to docked monitors

2021-04-15, 6:54 AM

I don't have a good answer but in re-reading your post and thinking back, Vantage also messed up my update. Stuck at 81% for a long long time. So long that I forced a shut down and recall previously I did updates on advice of others to do so manually and with cables to dock detached etc. as described in my other post. This is when I began to see the device attached icon missing from the system tray as documented elsewhere on this forum (to which Lenovo says is a W10 problem and unrelated to the event that occurred for me). Anyway, the manual install worked for me (with the system tray icon issue remaining). IMO if your dock is still under warranty, get it swapped out instead of tinkering with it at this stage.

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304 Posts

09-04-2019

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  • Message 8 of 8

Re:P52s no longer pushing video to docked monitors

2021-04-15, 6:54 AM

Also try deleting drivers from W10 related to the dock?

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