Lenovo Thinkpad X1 Tablet Gen3 Display 3k (3000x2000) Black Screen (I5 8250U)

[Baio77]

I have the above laptop, I can't get the built-in screen video. I tried many solutions but to no avail. I attach a link to the Github repository, where the debug + EFI + Ioreg files are attached. If something is missing I will make sure to leave whatever you ask in order to fix it.

 

https://github.com/Baio1977/Lenovo-ThinkPad-X1-Tablet-Gen3-Kabylake-r

  

1106525732_X1TabletOutputvideoONTB3dock.ioreg

[PG7]

1 hour ago, Baio77 said:

I have the above laptop, I can't get the built-in screen video. I tried many solutions but to no avail. I attach a link to the Github repository, where the debug + EFI + Ioreg files are attached. If something is missing I will make sure to leave whatever you ask in order to fix it.

 

https://github.com/Baio1977/Lenovo-ThinkPad-X1-Tablet-Gen3-Kabylake-r

  

1106525732_X1TabletOutputvideoONTB3dock.ioreg 50,15 MO · 0 téléchargements

 

Spoiler

https://github.com/acidanthera/WhateverGreen/blob/master/Manual/FAQ.IntelHD.en.md#intel-uhd-graphics-610-650-kaby-lake-and-amber-lake-y-processors

[Baio77]

I have tested ALL of these IG-Platforms and also the Coffelake CPU ones in no case is the built in screen working. At the end of the verbose, the integrated display turns off and video appears on HDMI TB3. If I connect no devices instead of turning off the built in monitor , it stays fixed with verbose .

I think it's a strange problem, not usual, on the net I find only 2 posts similar to my problem and nobody has solved it. You need a WEG and patch expert.

 

Verbose crash when booting without connecting HDMI to external monitor

Edited February 3, 2023 by Baio77

[aben]

Are you able to get output to internal display without accel. i.e -igfxvesa

 

Have you tried boot-args (with WEG): -igfxtypec -disablegfxfirmware

[Baio77]

I did a lot of tests are 2 days go crazy on this problem. I also read it could be DVMT seen has bios locked. The question is this: If it was DVMT how come I can display on HDMI Video connector From TB3??? How come if I start without connecting video TB3 it doesn't go to KP and remains on verbose???