[sonoma|OC|v1.8.1|TM1701] Random screen flicker and static even with DVMT at 64mb, config.plist patch applied and EDID injected

[bamdadkhan]

Pre-requirement

• For macOS version < Big Sur, try to rebuild the kextcache (e.g. run sudo kextcache -i / in Terminal.app) and restart whenever you encounter a problem. It always works like a charm!
• If you are using OpenCore, also try to reset NVRAM. Press Space key when you are in OpenCore boot page and choose Reset NVRAM.

State the model

• XiaoMi-Pro MX150, TM1701

State the version of the EFI

• v1.8.1

Describe the bug

• See title. I read through all the documentation and even searched all over the net on how to do an EDID injection - maybe i did it wrong.. it randomly flickers ever few seconds sometimes on boot or after a DPMI off event, only repeatedly changing resolutions and/or refresh rate to 48Hz and back to 60Hz fixes it.

No idea whether it's my fault, so a few pointers in the right direction are appreciated too.

System log

• N/A

Screenshots

• Hard to capture, but it looks like when a HDMI cable is loose. Similar to TV static.

Attach your entire EFI folder

• Please attach your entire EFI folder to help solve your problem.
• Erasing serial numbers in config.plist is required! EFI.zip

Attach system.log

• N/A

[stevezhengshiqi]

What resolution you are using? Also, did you enable HiDPI?

[bamdadkhan]

i'm using 1440x810 and yes, HiDPI is enabled, however, the flicker seems to be random and is present with all resolutions i've tested..

[stevezhengshiqi]

i'm using 1440x810 and yes, HiDPI is enabled.

1440x810 is too much for Mojave+, it's better to use 1424x802 as mentioned in https://github.com/daliansky/XiaoMi-Pro-Hackintosh?tab=readme-ov-file#improvements

[stevezhengshiqi]

1424x802 is a magic resolution that we conducted mulitple trials. It is a little bit less than 1440x810, and we intentionally avoid perfect 16:9 as it would otherwise flickers.

[bamdadkhan]

i'm not getting that one:

am i selecting the wrong options in the HiDPI script?

[Menchen]

Rerun the script and follow instruction from https://github.com/xzhih/one-key-hidpi and change the resolution in system settings. I think that app overwrites EDID information, thus making the hidpi script useless.

[bamdadkhan]

done. first when i switched to it there was some flicker but now it seems fine. i'll test for a day or two and report back. thanks.

[bamdadkhan]

well it didn't really work. the flicker is kind of reduced and comes up less often but it's still there, especially after sleep or DPMS off.

[stevezhengshiqi]

I would recommend to comment out AAPL00,override-no-connect to undo the EDID injection and then give it a try. If flicker still happens, consider disabling HiDPI. High version macOS uses Metal V2+ that does not cooperate with our Intel GPU well.