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<< Solved >> HP 450 G4 Freeze when I plug the HDMI Cable.

Joined
Mar 3, 2012
Messages
248
Motherboard
HP ProBook 450 G6 (OpenCore)
CPU
i7-8565U
Graphics
Intel UHD Graphics 620
Mobile Phone
  1. iOS
Hello, I have HP Probook 450 g4 Running OpenCore Catalina really well everything works except HDMI.
I decided to buy a big screen to contact the with HDMI, but I figured out that every time I plug the HDMI into my Laptop the laptop freeze and I had to restart it.
EFI Folder Attached Please help.

Thanks
 

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  • EFI.zip
    5 MB · Views: 28
Joined
Mar 3, 2012
Messages
248
Motherboard
HP ProBook 450 G6 (OpenCore)
CPU
i7-8565U
Graphics
Intel UHD Graphics 620
Mobile Phone
  1. iOS
Joined
Mar 3, 2012
Messages
248
Motherboard
HP ProBook 450 G6 (OpenCore)
CPU
i7-8565U
Graphics
Intel UHD Graphics 620
Mobile Phone
  1. iOS
try adding device-id -> 16590000

post 2 of my guide in my signature
I Added device-id -> 16590000, I rested and cleaned the NVRAM, and still having the same issue, I think the laptop still reading the old EFI older no the edited one.
 

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  • Screen Shot 2021-02-25 at 10.04.34 AM.png
    Screen Shot 2021-02-25 at 10.04.34 AM.png
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Feartech

Moderator
Joined
Aug 3, 2013
Messages
23,538
Motherboard
Asus N752VX-OpenCore
CPU
i7-6700HQ / HM170
Graphics
HD 530 1920 x 1080
Mac
  1. iMac
Mobile Phone
  1. iOS
I Added device-id -> 16590000, I rested and cleaned the NVRAM, and still having the same issue, I think the laptop still reading the old EFI older no the edited one.
suggest to remove your all data settings and start off with just the ig-platform and device-id if needed

then have a read up on:

and also:
https://github.com/acidanthera/WhateverGreen/blob/master/Manual/FAQ.IntelHD.en.md

there is also a setting you can enable for hdmi fix that may also work
 
Joined
Mar 3, 2012
Messages
248
Motherboard
HP ProBook 450 G6 (OpenCore)
CPU
i7-8565U
Graphics
Intel UHD Graphics 620
Mobile Phone
  1. iOS
I fixed it by changing the ig-platform to 16590000 and added some framebuffer as the picture below

Screen Shot 2021-03-02 at 4.17.42 PM.png
 
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