05-24-2019 05:06 AM
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:
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.
Solved! Go to Solution.
05-26-2019 10:30 AM
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.
05-27-2019 12:21 AM
05-28-2019 12:49 PM
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?
05-29-2019 12:00 AM
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.
05-30-2019 01:02 AM
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.
05-31-2019 04:03 AM
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...
05-31-2019 12:08 PM
06-03-2019 08:59 AM
06-03-2019 12:56 PM