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ph_gregoire
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Posts: 9
Registered: ‎03-17-2010
Location: FR
Views: 537
Message 1 of 11

P50 HDMI still not working even after thunderbolt FW upgrade to NVM 25.00

I have followed instructions to install n1etf08w.exe as per https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-p-series-laptops/thinkpad-....
There is no setup.bat after extraction but only a FwUpdateTool.exe, which eventually manages to get NVM Firmware version to upgrade to 25.00: 2019-05-24_13-57-51.png

 

But even after this, my external monitor is activated but stays black, no image shows up.

Moreover, the whole vide system performance is extremaly sluggish as soon as an HDMI cable or device is connected, although there is almost no CPU or disk activity.

 

This used to work, problem occurred after base firmware and drivers updates, possibly also after Win10 update, not sure which has been the triggering factor.

 

What esle can I do to fix this? It is a rea problem since I cannot even use a projector.

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Message 2 of 11

Re: P50 HDMI still not working even after thunderbolt FW upgrade to NVM 25.00

Hi ph_gregoire! Welcome to our forums community. Have you tried using a different cable or try connecting to a different external monitor to check if the issue persist? Try running the Hardware scan from the Lenovo Vantage app to check if there are hardware failures. If none, run the update and install all available updates through the same app.



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ph_gregoire
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Posts: 9
Registered: ‎03-17-2010
Location: FR
Views: 460
Message 3 of 11

Re: P50 HDMI still not working even after thunderbolt FW upgrade to NVM 25.00

Well, the problem appeared as a consequence of installing a batch of updates.
So, yes, I'm at the latest on all drivers.
I tried all different sorts of cables and monitors, none work.
It is not a physical connectivity problem at all. The monitor detects that something is connected, but stays black. As long as a HDMI device is connected, display performance of TP is sluggish (although CPU stays at <15% usage)
freddellmeister
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Registered: ‎12-24-2011
Location: AE
Views: 435
Message 4 of 11

Re: P50 HDMI still not working even after thunderbolt FW upgrade to NVM 25.00

Hi, could you please share why you believe updting thunderbolt firmware would affect HDMI?

Secondly, have you tried changing from hybrid to discrete graphics in the BIOS?

Thirdly, did you manage to find another HDMI cable to try?

ph_gregoire
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Posts: 9
Registered: ‎03-17-2010
Location: FR
Views: 417
Message 5 of 11

Re: P50 HDMI still not working even after thunderbolt FW upgrade to NVM 25.00

1) This thread https://forums.lenovo.com/t5/ThinkPad-P-and-W-Series-Mobile/Lenovo-P50-HDMI-not-working/m-p/2264525#... which eventually leads to https://support.lenovo.com/us/en/solutions/SF16-T0051 explains  that "The external HDMI video is routed through the Intel Alpine Ridge Thunderbolt chipset".

2) The BIOS Graphics mode has not changed, it worked as is before. I had tried switching it but that did not have any effect.

3) As posted above twice, yes I tried several HDMI cables and several different Monitors or HDMI-VGA adaptors or thunderbolt-HDMI adaptor.

 

When a HDMI monitor is plugged-in, graphics performance of the P50's display becomes sluggish, can't move windows around smoothly, but CPU is not affected (runs idle at <15%).  The simple fact of having a HDMI cable plugged-in ruins perf on the LCD display. External monitor wakes up when connected (e.g. power LED turns green whereas it was yellow in standby), and shows up in Display Settings as second monitor but remains blacked-out.

freddellmeister
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Posts: 147
Registered: ‎12-24-2011
Location: AE
Views: 391
Message 6 of 11

Re: P50 HDMI still not working even after thunderbolt FW upgrade to NVM 25.00

I Have two W10 P50 with updated thunderbolt firmware and thunderbolt application.

 

One is running the latest as of May 2019 Lenovo provided Nvidia driver. (Windows 1809)

One is running the almost latest Quadro May 2019 (430.64) downloaded from Nvidia. (Windows 1903)

Both are currently in Hybrid Graphic setting.

 

I have used the HDMI port on both machines, yesterday and today without any issue connected to different devices.


Therefore I suggest uninstalling and cleanly ire-nstall the latest Lenovo provided intel and Nvidia driver package before proceeding further.

ph_gregoire
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Posts: 9
Registered: ‎03-17-2010
Location: FR
Views: 370
Message 7 of 11

Re: P50 HDMI still not working even after thunderbolt FW upgrade to NVM 25.00

This is exactly what I've done. Uninstalled Thunderbolt software, reinstalled latest (from Intel), upgraded BIOS and Thunderbolt Firmware , PM firmware as well as it is a prereq for ThBlt. I've downgraded BIOS to previous versions, re-upgraded it. I'm at the latest of what Lenovo System Update can determine on my machine.

Overall, I've spent about 2 full cumulated days trying out empirical recipes to get my P50 back in shape, after it has ben mangled by what should have been a routine overhaul of drivers upgrades.

 

Now I'm not really after empirical advice on what could/should work, I'm after a reliable method for diagnosing what's wrong with my system.

 

In my company we have a choice of Mac vs TPs. My colleagues have been pressuring me to switch to a Mac, and I think that's what I will end up doing...

freddellmeister
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Posts: 147
Registered: ‎12-24-2011
Location: AE
Views: 337
Message 8 of 11

Re: P50 HDMI still not working even after thunderbolt FW upgrade to NVM 25.00

Just to be clear I am talking about reinstalling the graphics device drivers.

The P50 has a combined Nvidia and Intel package:
https://download.lenovo.com/pccbbs/mobiles/n1edl34w.exe

If possible use DDU:
https://www.guru3d.com/files-details/display-driver-uninstaller-download.html

To clean out any old drivers first.

Based on what you describe, your employer have probably not installed Lenovo Vantage or System Update. I would follow up with Installing (Lenovo) System Update and check what other device drivers might be missing also.

Getting a Mac is another option since current ones lack HDMI port altogether.. Problem solved.
ph_gregoire
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Posts: 9
Registered: ‎03-17-2010
Location: FR
Views: 293
Message 9 of 11

Re: P50 HDMI still not working even after thunderbolt FW upgrade to NVM 25.00

Okay, thanks for the links.
BTW, I do have Lenovo System Updates and Vantage, this why I wrote " I'm at the latest of what Lenovo System Update can determine on my machine."
Now, over that, I installed a fresh Win10 on another SSD, and with that one HDMI works again. Which means that the firmwares are not the issue per say.
Latest nvidia driver from nvidia did not solve the problem, I'll try the combined package you're referring.
freddellmeister
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Posts: 147
Registered: ‎12-24-2011
Location: AE
Views: 283
Message 10 of 11

Re: P50 HDMI still not working even after thunderbolt FW upgrade to NVM 25.00

Based on your feedback I would recommend uninstalling the existing Nvidia and Intel packages with DDU before adding the latest lenovo driver for reference.

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