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Help: 4K @ 60Hz Dell 7580

Joined
Jul 25, 2012
Messages
58
Motherboard
Dell Precision T3500
CPU
W3503
Graphics
RX 560
Mobile Phone
  1. Android
Hi, I'm stuck on 4K@30Hz on DP and HDMI on Ventura, OC 0.85

On Win 11 installed on separate NVMe drive in this machine – it gets 4K@60Hz on DP and 4K@50Hz on HDMI.

EFI attached.

Thanks
 

Attachments

  • EFI.zip
    35.9 MB · Views: 19
Joined
Nov 27, 2012
Messages
68
Motherboard
Gigabyte B460 Aorus Pro
CPU
i7-10700K
Graphics
UHD 630
Mac
  1. iMac
  2. MacBook Air
Mobile Phone
  1. iOS
You may add the followings in DeviceProperties/Add/PciRoot(your graphic device) in the config.plist.

"framebuffer-con0-type" to <00040000>
"enable-max-pixel-clock-override" to <01000000>

or

XML:
    <key>DeviceProperties</key>
    <dict>
        <key>Add</key>
            <key>PciRoot(0x0)/Pci(0x2,0x0)</key>
            <dict>
                <key>framebuffer-con0-type</key>
                <data>AAQAAA==</data>
                <key>enable-max-pixel-clock-override</key>
                <data>AQAAAA==</data>
            </dict>
 
Joined
Jul 25, 2012
Messages
58
Motherboard
Dell Precision T3500
CPU
W3503
Graphics
RX 560
Mobile Phone
  1. Android
Thanks @medianjoe. Made the changes you suggested but still 4k@30Hz over DP (following CleanNVRAM x 2 and restarting).
 
Joined
Sep 26, 2016
Messages
194
Motherboard
Gigabyte Aorus z390 Elite
CPU
i7-9700K
Graphics
Vega 64
Mac
  1. iMac
  2. MacBook Pro
Mobile Phone
  1. Android
Thanks @medianjoe. Made the changes you suggested but still 4k@30Hz over DP (following CleanNVRAM x 2 and restarting).
Try adding these to device properties in PciRoot(0x0)/Pci(0x2,0x0)

AAPL00,override-no-connect "Data" 00FFFFFF FFFFFF00 30E47C9C 00000000 00190104 A5221360 EA6FB1A7 554C9E25 0C505400 00000101 01010101 01010101 01010101 01015FD1 00B4F070 3E803C24 350058C2 1000001A 80A700B4 F0703E80 3C243500 58C21000 001A0000 00FE0035 33464334 81313536 5544320A 00000000 00024131 9E111000 000B010A 20200062

enable-max-pixel-clock-override "Data" 01000000

or just use the EFI attached. Data is already added to it :)
 

Attachments

  • EFI.zip
    36.1 MB · Views: 3
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