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Lenovo U310 Core i5 3317U Black Screen

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Joined
Jun 6, 2012
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10
Motherboard
GA H470-HD3
CPU
i5 10600K
Graphics
RX 5500 XT
Mac
  1. MacBook Air
  2. MacBook Pro
Mobile Phone
  1. iOS
Hi.

After 2 days of searching I make this post.
The installation using Unibeast works fine, reboot from the USB and still ok.
After installing Multibeast 5.3.0 and reboot, I see the Apple logo and then when I should see the desktop the screen goes black, as if it's off.
Eventually I saw someone said they used the HDMI port and it works on both internal and external that way, but no internal screen if I unplug the HDMI cable. No one has posted a solution to this that I can find.

While the HDMI is connected and it goes to sleep, when I power on the internal screen comes up a few seconds before the external one does.
If I unplug the HDMI cable i notice that the internal screen still stays on for a few seconds then goes off, as if going to sleep.

With the HDMI cable there is full CE/CI and proper resolutions.

Has anyone had any success with this so far?
Any help would be appreciated.

Thanks.
 

RehabMan

Moderator
Joined
May 2, 2012
Messages
183,805
Motherboard
Intel DH67BL
CPU
i7-2600K
Graphics
HD 3000
Mac
  1. MacBook Air
Mobile Phone
  1. iOS
Hi.

After 2 days of searching I make this post.
The installation using Unibeast works fine, reboot from the USB and still ok.
After installing Multibeast 5.3.0 and reboot, I see the Apple logo and then when I should see the desktop the screen goes black, as if it's off.
Eventually I saw someone said they used the HDMI port and it works on both internal and external that way, but no internal screen if I unplug the HDMI cable. No one has posted a solution to this that I can find.

While the HDMI is connected and it goes to sleep, when I power on the internal screen comes up a few seconds before the external one does.
If I unplug the HDMI cable i notice that the internal screen still stays on for a few seconds then goes off, as if going to sleep.

With the HDMI cable there is full CE/CI and proper resolutions.

Has anyone had any success with this so far?
Any help would be appreciated.

Thanks.

You need to set the AAPL,ig-platform-id. There are lots of ways to do this (DSDT, device-properties injection, Enoch Chameleon, SSDT), but I like to patch DSDT for it. This is the patch you need:

Code:
#   Inject HDMI info into GFX0/IGPU   */
into method label _DSM parent_adr 0x00020000 remove_entry;
into device name_adr 0x00020000 insert
begin
Method (_DSM, 4, NotSerialized)\n
{\n
    If (LEqual (Arg2, Zero)) { Return (Buffer() { 0x03 } ) }\n
    Return (Package()\n
    {\n
        "hda-gfx",\n 
        Buffer() { "onboard-1" },\n
        "AAPL,ig-platform-id",\n
        Buffer() { 0x03, 0x00, 0x66, 0x01 },\n
    })\n
}\n
end;

The "hda-gfx" inject is for HDMI audio, but I leave it in here in case you eventually want to make that work too (needs corresponding HDEF inject).
 
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