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Monterey (OpenCore) external display resolution problem on Lenovo 280

Feartech said:
I gave you other advice also
Click to expand...


Did I understand your advice correctly? I should make these changes right?

This is what I found on your link related to my laptop

Kaby Lake
Support up to Ventura
Device Properties - Add - PciRoot(0x0)/Pci(0x2,0x0)
AAPL,ig-platform-id -> 00001B59
or:
AAPL,ig-platform-id -> 00001659

For UHD620 users (Kaby Lake-R), you'll need a device-id spoof:
device-id -> 16590000

kernel - quirks:
enable:
DisableIoMapper
PanicNoKextDump
PowerTimeoutKernelPanic

SystemProductName:
MacBookPro14,1

UEFI -> Quirks:
enable:
ReleaseUsbOwnership
 
Miliardi said:
I answered you above about this kext I do not know
Click to expand...
bit difficult to help you if you have grabbed an EFI from github then come over here saying it doesn't work...

i have given you a link to the laptop guide already
 
Miliardi said:
I answered you above about this kext I do not know
Click to expand...

Hi.

If you are going to use an EFI from another site, it might be a good idea to contact the dev there to find out what mysterious kexts do. That is not our job. We will help you if you create the EFI using our methods and files.

:)
 
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UtterDisbelief said:
Hi.

If you are going to use an EFI from another site, it might be a good idea to contact the dev there to find out what mysterious kexts do. That is not our job. We will help you if you create the EFI using our methods and files.

:)
Click to expand...
Hi

Can you give me a link where I can read about your method and download your files please?
 
Miliardi said:
Hi

Can you give me a link where I can read about your method and download your files please?
Click to expand...
"i have given you a link to the laptop guide already" @Feartech

www.tonymacx86.com

[Guide] Booting The USB Installer Using OpenCore

A guide in setting up your USB installer using OpenCore. You must have either a built-in ethernet or compatible Broadcom Wifi in your laptop for this guide to work. Built-in Intel Wifi can also work if set correctly...
www.tonymacx86.com www.tonymacx86.com
 
Thank you for you patience, I will try to use your guide and files to create new EFI
 
Hi again brothers by interests :)

I created EFI with your files and guide and max resolution is still 1080p :(

I tried to hit Option + All Resolutions, turn on and off Mirroring etc - no effect.

Update: I changed Graphics card from 530 to 620 and nothing changed too
 

Attachments

  • EFI.zip
    4.7 MB · Views: 1
Last edited:
Miliardi said:
Hi again brothers by interests :)

I created EFI with your files and guide and max resolution is still 1080p :(

I tried to hit Option + All Resolutions, turn on and off Mirroring etc - no effect.

Update: I changed Graphics card from 530 to 620 and nothing changed too
Click to expand...
this section:

Code: 
<dict>
                <key>AppleCpuPmCfgLock</key>
                <true/>
                <key>AppleXcpmCfgLock</key>
                <true/>
                <key>AppleXcpmExtraMsrs</key>
                <false/>
                <key>AppleXcpmForceBoost</key>
                <false/>
                <key>CustomPciSerialDevice</key>
                <false/>
                <key>CustomSMBIOSGuid</key>
                <false/>
                <key>DisableIoMapper</key>
                <true/>
                <key>DisableIoMapperMapping</key>
                <false/>
                <key>DisableLinkeditJettison</key>
                <true/>
                <key>DisableRtcChecksum</key>
                <false/>
                <key>ExtendBTFeatureFlags</key>
                <false/>
                <key>ExternalDiskIcons</key>
                <false/>
                <key>ForceAquantiaEthernet</key>
                <false/>
                <key>ForceSecureBootScheme</key>
                <false/>
                <key>IncreasePciBarSize</key>
                <false/>
                <key>LapicKernelPanic</key>
                <false/>
                <key>LegacyCommpage</key>
                <false/>
                <key>PanicNoKextDump</key>
                <true/>
                <key>PowerTimeoutKernelPanic</key>
                <true/>
                <key>ProvideCurrentCpuInfo</key>
                <false/>
                <key>SetApfsTrimTimeout</key>
                <integer>-1</integer>
                <key>ThirdPartyDrives</key>
                <false/>
                <key>XhciPortLimit</key>
                <true/>
            </dict>
doesn't belong with your kexts section

setting DVMT to 128MB in bios will help

also try adding to your config.plist:

Code: 
dpcd-max-link-rate | Data | 14000000
enable-dpcd-max-link-rate-fix | Data | 01000000
enable-hdmi20 | Data | 0100000
in PciRoot(0x0)/Pci(0x2,0x0) section

also you could try:
github.com

OC-Little-Translated/11_Graphics/Inject_EDID at main · 5T33Z0/OC-Little-Translated

ACPI Hotpatches and Guides for the OpenCore Bootmanager. Enhance and fine-tune your system by adding devices and enabling additional features not covered in the OpenCore Install Guide. - 5T33Z0/OC-...
github.com github.com

or another thing you can try:
github.com

GitHub - xzhih/one-key-hidpi: Enable macOS HiDPI and have a native setting.

Enable macOS HiDPI and have a native setting. Contribute to xzhih/one-key-hidpi development by creating an account on GitHub.
github.com github.com
make sure to close the laptop screen first so it only affects your external monitor
 
Feartech said:
this section:

Code: 
<dict>
                <key>AppleCpuPmCfgLock</key>
                <true/>
                <key>AppleXcpmCfgLock</key>
                <true/>
                <key>AppleXcpmExtraMsrs</key>
                <false/>
                <key>AppleXcpmForceBoost</key>
                <false/>
                <key>CustomPciSerialDevice</key>
                <false/>
                <key>CustomSMBIOSGuid</key>
                <false/>
                <key>DisableIoMapper</key>
                <true/>
                <key>DisableIoMapperMapping</key>
                <false/>
                <key>DisableLinkeditJettison</key>
                <true/>
                <key>DisableRtcChecksum</key>
                <false/>
                <key>ExtendBTFeatureFlags</key>
                <false/>
                <key>ExternalDiskIcons</key>
                <false/>
                <key>ForceAquantiaEthernet</key>
                <false/>
                <key>ForceSecureBootScheme</key>
                <false/>
                <key>IncreasePciBarSize</key>
                <false/>
                <key>LapicKernelPanic</key>
                <false/>
                <key>LegacyCommpage</key>
                <false/>
                <key>PanicNoKextDump</key>
                <true/>
                <key>PowerTimeoutKernelPanic</key>
                <true/>
                <key>ProvideCurrentCpuInfo</key>
                <false/>
                <key>SetApfsTrimTimeout</key>
                <integer>-1</integer>
                <key>ThirdPartyDrives</key>
                <false/>
                <key>XhciPortLimit</key>
                <true/>
            </dict>
doesn't belong with your kexts section

setting DVMT to 128MB in bios will help

also try adding to your config.plist:

Code: 
dpcd-max-link-rate | Data | 14000000
enable-dpcd-max-link-rate-fix | Data | 01000000
enable-hdmi20 | Data | 0100000
in PciRoot(0x0)/Pci(0x2,0x0) section

also you could try:
github.com

OC-Little-Translated/11_Graphics/Inject_EDID at main · 5T33Z0/OC-Little-Translated

ACPI Hotpatches and Guides for the OpenCore Bootmanager. Enhance and fine-tune your system by adding devices and enabling additional features not covered in the OpenCore Install Guide. - 5T33Z0/OC-...
github.com github.com

or another thing you can try:
github.com

GitHub - xzhih/one-key-hidpi: Enable macOS HiDPI and have a native setting.

Enable macOS HiDPI and have a native setting. Contribute to xzhih/one-key-hidpi development by creating an account on GitHub.
github.com github.com
make sure to close the laptop screen first so it only affects your external monitor
Click to expand...
Thank you, I will try.

And unfortunately I don’t have DVMT option in my BIOS, only video sharing memory, it is set to max 512MB
 
Unfortunately new Config.plist settings did not help.

I will try those GutHub repos to force the Display settings update.
 
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