Help: 4K @ 60Hz Dell 7580

[dm5n]

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

 

[medianjoe]

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

    <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>

 

[dm5n]

Thanks @medianjoe. Made the changes you suggested but still 4k@30Hz over DP (following CleanNVRAM x 2 and restarting).

 

[slipanot]

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