[Guide] Lenovo Y50 (UHD or 1080p) using Clover UEFI

[karthaxx]

Thanks!

I was searching for solution when i stumbled upon a forum post: https://www.insanelymac.com/forum/topic/325601-intelhd-4600-screen-problem/
It's almost the same issue, that I (we) have. If I set my booting to UEFI only, i get something similar glitch.
A ig-platform-id solved his problem, so I tried it and it works!!!!
I set my booting to Legacy, but UEFI first, booted with 0x04260000 and my internal display works, external also and i have 3D acceleration with 1024MB VRAM!
I know it's not 1536MB but still.

If you get glitchy graphics with this ig-platform-id try to put it in sleep but wake up right away.

Good news, I will try it when I get back home.

 

[karthaxx]

Thanks!

I was searching for solution when i stumbled upon a forum post: https://www.insanelymac.com/forum/topic/325601-intelhd-4600-screen-problem/
It's almost the same issue, that I (we) have. If I set my booting to UEFI only, i get something similar glitch.
A ig-platform-id solved his problem, so I tried it and it works!!!!
I set my booting to Legacy, but UEFI first, booted with 0x04260000 and my internal display works, external also and i have 3D acceleration with 1024MB VRAM!
I know it's not 1536MB but still.

If you get glitchy graphics with this ig-platform-id try to put it in sleep but wake up right away.

I had no success with using 0x04260000 as ig-platform-id. It resulted in a kernel panic when booting.

Can you share your clover config so that i can compare it with mine ? Thanks.

 

[RehabMan]

I managed to install Mojave on my y50-70 UHD model without a problem with the attached config:

Everything works fine untill this point:

cd ~/Projects/y50.git
cp config_UHD.plist /Volumes/EFI/EFI/Clover/config.plist

The problem is after the install. When I copy config_UHD.plist Mojave won't work anymore. When booting, I can see everything untill half of progress bar, after that GUI is supposed to show, but instead I get a black screen. I can wake the screen up by pressing "Fn+F1, ALT" to simulate sleep. It then only appears for one second and problem continues. For one second I can see the login screen from Mojave. Is there any way to make Intel graphics work without black screen issue?

I want to add that I have correctly patched DVMT-prealloc. I was a long time y50-70 El Capitan user without a problem. Intel graphics was working fine on El Capitan. It was recently that I decided to install Mojave from scratch.

Your profile has no details on screen resolution. Please fix as per FAQ request.

 

[karthaxx]

Your profile has no details on screen resolution. Please fix as per FAQ request.

Thanks, fixed my profile information.

Attached all problem reporting files.

I had El Capitan working successfully.
I am running on external TV right now.
Using config_UHD.plist.
DVMT-prealloc patched to 128MB

Seems like changing this line in config.plist triggers a black screen issue:

<key>ig-platform-id</key>

<string>0x12345678</string> --> <string>0x0a260006</string>

 

[blint01]

Hi Rehabman!

I partially fixed my black screen issue with the 0x04260000 ig-platform-id. With this both of my screen is working, but I still don't have proper graphics and I only have 1024mb of VRAM instead of 1534MB. For example, if I install Clover Configurator, it always have some kind of graphic glitch. I attached a screenshot of it.
I would rather go your way, by this I mean to leave everything as you configured with you Y50-DSDT scripts, but with it my internal screen is black, although it's black lit.

 

[karthaxx]

Hi Rehabman!

I partially fixed my black screen issue with the 0x04260000 ig-platform-id. With this both of my screen is working, but I still don't have proper graphics and I only have 1024mb of VRAM instead of 1534MB. For example, if I install Clover Configurator, it always have some kind of graphic glitch. I attached a screenshot of it.
I would rather go your way, by this I mean to leave everything as you configured with you Y50-DSDT scripts, but with it my internal screen is black, although it's black lit.

can you also provide clover folder please? I want to try out your config on my laptop.

 

[blint01]

can you also provide clover folder please? I want to try out your config on my laptop.

Yes, sure, sorry for the delay.

 

[RehabMan]

Thanks, fixed my profile information.

Attached all problem reporting files.

I had El Capitan working successfully.
I am running on external TV right now.
Using config_UHD.plist.
DVMT-prealloc patched to 128MB

Seems like changing this line in config.plist triggers a black screen issue:

<key>ig-platform-id</key>

<string>0x12345678</string> --> <string>0x0a260006</string>

Post #117 may have something for you to try.

 

[blint01]

Post #117 may have something for you to try.

My files show something else?

 

[Asrake]

can you also provide clover folder please? I want to try out your config on my laptop.

The UHD model can try my clover config.plist on page 13 floor #128 if you can't get it work use RehabMan's config.plist