Internal display may get incorrectly detected as YCbCr444

[BreezeConfirmingWms]

macOS Version

Ventura

What is your CPU's model?

AMD Ryzen 9 4900HS with Radeon Graphics

Please describe the behaviour in detail.

My laptop is ASUS ROG Zephyrus-G15-GA502IV,and its internal display not work properly,the color is grey and the display become blurred and flickering

when I connect to my external 2k display, the internal display is broken grey:

when I disconnect and use internal display alone

the infomation of internal monitor shown in terminal is:

LQ156M1JW09:
     Resolution: 1920 x 1080 (1080p FHD - Full High Definition)
     UI Looks like: 1920 x 1080 @ 240.00Hz
     Framebuffer Depth: 30-Bit Color (ARGB2101010)
     Mirror: Off
     Online: Yes
     Automatically Adjust Brightness: Yes
     Connection Type: Internal

Additionaly,I found lower refresh rate like transfer 240hz to 60hz could help erase the black stripes in the picture above while there is still a blurred and grey screen probelm

What should've happened instead?

The built-in monitor should display normally

If applicable, attach the .gpuRestart, .panic, etc file related to this issue.

I just command /System/Library/Extensions/AppleGraphicsControl.kext/Contents/MacOS/AGDCDiagnose -a to get:
agdcdiganose.txt

[github-actions]

Greetings. It seems like this is the first issue you open on this repository.

We are letting you know that these are for bug reports or feature requests. Most of the reports we receive in this GitHub Organisation are user errors.

For the sake of saving time, here are the most common cases:

• Outdated version of this kext.
• Conflicts with other kexts (e.g. WhateverGreen).
• Issues caused by other kexts like memory corruption (e.g. AirportItlwm).
• Intended behaviour by Apple (e.g. V-Sync or cursor rendering).
• Using cheap hacks like kext/library downgrades (e.g. OCLP, BFixup).
• Duplicate kexts.
• Malformed config.plist caused by configurator software (OCAT, OCC, etc).
• Lack of TSC synchronisation (use AmdTscSync).
• Incorrectly configured TSC synchronisation (set IOCPUNumber in the Info.plist to number of threads minus one for macOS 11 and older, 0 for anything newer).
• Outdated macOS minor version (e.g. macOS 11.0.0 instead of latest).
• Using beta versions of macOS.
• Using the kext during installation or update. There is a Lilu bug which makes macOS stall during the last install phase.
• Incorrect SMBIOS. Please use iMac20,1, MacBookPro16,3, MacPro7,1 or iMacPro1,1.
• (e)DP link training failure. -NRedDPDelay will fix this as mentioned in the README. This is last resort, black screen can be caused by other factors mentioned.
• Insufficient VRAM size.

We will never support the use of configurator software, solutions like OCLP/BFixup, or using macOS beta versions.

This issue will be looked over by the respective maintainer when they can. In the meantime, look if you can resolve this yourself via checking the above.

Be patient, we are hobbyists.

[VisualEhrmanntraut]

The build of this kext in the system is ancient. LOL @ u.

[VisualEhrmanntraut]

oh... wait, I think the patch that changes the value is actually broken 🤦🏻‍♂️ My bad

[VisualEhrmanntraut]

anyway... the problem is that macOS detected your laptop's pixel encoding as YCbCr444