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Cannot activate Sidecar

Joined
Feb 13, 2013
Messages
1
Motherboard
Gigabyte Z97P-D3
CPU
i7-4790K
Graphics
RX 580
Mac
MacBook Pro
Mobile Phone
Android
Hello, First of all thank you for the participants of the forum.
By replacing my CG (GTX1060) to an RX580, I switched to Catalina 10.15.3.
The problem is that I cannot activate Sidecar.
I have a valid serial number and icloud works very well on my Hackintosh (iMac 14.2) and my iPad Pro 11 "(ipados 13).
I tried this command:
defaults write com.apple.sidecar.display AllowAllDevices -bool true;
defaults write com.apple.sidecar.display hasShownPref -bool true;
open /System/Library/PreferencePanes/Sidecar.prefPane
And I have a message :
Capture d’écran 2020-02-13 à 19.00.23.png


Can you help me ?
 
Joined
Oct 28, 2015
Messages
9
Motherboard
Gigabyte Z370-HD3P
CPU
i7-8700K
Graphics
Vega 64
Mac
iMac, MacBook, MacBook Air, MacBook Pro, Mac mini
Classic Mac
iBook, iMac
Mobile Phone
iOS
Pretty sure that cpu and subsequent SMBIOS is simply too old.
 
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