02-07-2017 07:19 AM
Clean install Win 10
Windows installs Basic graphics driver, which works
Install Intel graphics driver, and screen goes black, laptop still running
I have tried 2 different drivers from Lenovo and 1 direct from Intel
Same symptom with all
Solved! Go to Solution.
02-07-2017 07:33 AM - edited 02-07-2017 07:41 AM
What exact version of Windows 10?
What is the exact model (MTM) of your Yoga 2 pro?
What driver versions are you trying to install from Lenovo? (I only see one availabe which is version 10.18.15.4240 dated 7/14/2015 for Windows 10 64-bit, and the generic Intel drivres are always hit or miss since they have not been certified by Lenovo.)
Have you updated the chipset drivers for your system?
02-07-2017 07:44 AM - edited 02-07-2017 08:21 AM
Win 10 HP 64
Yes, tried that driver version
Installed All supplied lenovo drivers first, including chipset, and same problem
Tried the same with Win 8.1 and still black screen after graphics driver install
Display works in Linux Mint 18, but naturally have to adjust resolution lower
Thanks for the reply JD
Edit: Note this has the newest bios version
02-19-2017 11:56 AM - last edited on 02-27-2017 08:41 PM by zoltanthegypsy
Well, went after this problem from a hardware angle
I have "Heat Treated" many laptops with black screen and no post
Before this, all were older amd cpu and graphics with separate graphics chip on motherboard
From what I understand, the solder would crack on the bga
Sometimes lasted a week, sometimes a month, sometimes longer
Reasoned that the separate graphics package on this processor die may have a similar problem since it is also bga
Removed motherboard, heatsink assembly, and masked off the gpu die with foil
Used my trusty pencil torch and heated. How long, don't ask, I go by feel and experience
Also, the heatsink did not completely cover both gpu and cpu on the die
What the heck were they thinking? There is a cutout in the copper, and just
a thermal pad was used for the gpu part of the die
Cut a small copper shim to fill the cutout, thermal paste both sides, and reassemble
Well, it worked. Now, installs graphics driver just fine
Tested in win 8.1, and then clean install win 10
Seems good, how long will it last, is the question
This post is for repair techs, and not for all the casual readers on this excuse for a help forum
I wish Mark Lenovo was still here, there was a good crew back then, proud to say
I was one of them.
Moderator note: post rescued from overly-aggressive filters.
02-27-2017 07:00 PM
I'm running Windows 10 (14393.693) cleaned installed with latest Windows Catalog's Intel driver version smoothly:
Intel Corporation driver update for Intel(R) HD Graphics 4400