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The same at 7559, it was at Clover and is still happening at OpenCore

Big Sur is still slower than previous versions. Сurrently we have three problems with Big Sur on our laptop: 1. Reduced performance than Catalina 2. Greater heating than on Catalina and, accordingly, more noise 3. Sticking GPU frequencies after sleeping at 350MHz sometimes I read some...

Ok, thanks, I will check it later

@Heisenberg68 yes, this VerbStub kext also works, I talked about it, but sometimes it causes unpleasant effects for me, after sleep sometimes the sound stops working. Also, the microphone in headset mode still does not work, so there is no reason in using this method for me. The reason why you...

No need to do this, it's old version with path /usr/bin The new version uses the path /usr/local/bin to install This path will be replaced when install to your path to alc256.plist If you remove this string you can get error such as on your second pic @Heisenberg68 use ALCPlugFix-Swift from...

@dgner you can get it from my config or build from sourcecode or waiting final release 1.4.6

New WhateverGreen version 1.4.6 with new enable-max-pixel-clock-override property to IGPU https://github.com/acidanthera/WhateverGreen/blob/master/Manual/FAQ.IntelHD.en.md#hdmi-in-uhd-resolution-with-60fpsWhateverGreen And EDID patch from Hackintool, on some laptops it may be work without EDID...

I did it. I can't check hdmi, but most likely it should work, and most importantly, I got 4k@60Hz in BigSur. As a result, it remains to solve a few small problems with sleep and getting out of sleep and the config will be completed.

Yes, since my config for 4k display, you should change UIScale to 1 for fhd screen You had a config where everything worked 3 days ago. Why change something?

@slipanot yes, 48hz, it seems so far this issue cannot be solved in Big Sur. We are waiting for new Lilu and WhateverGreen.

@slipanot, yes, display working in Big Sur without EDID:

@slipanot disabled security boot, it’s not a good idea, better if you fix security boot option. Read my post to the end there is a link to instructions on how to fix it. if it's too complicated then just set Disabled on Misc —> Security —> SecureBootModel

Try to use my config (for me works everything correctly): https://www.tonymacx86.com/threads/guide-dell-inspiron-15-7559-skylake.260876/post-2204321

I'm using 1.3.1 without any problems, before I used older versions also successfully

@vizshrc I have the same AppleHDA.kext on my Big Sur.

You should delete only those kexts that you injected through the Clover, usually in /Library/Extension Perhaps some place their keksts in /system/library/extensions although this has long been bad practice But you shouldn't delete the original apple kexts, otherwise you will have to completely...

@madt3x, you don't need this EDID patch, it's only for 4k internal display if it not work. It will not affected for HDMI

Yes, but he shouldn't use any audio patch together with AppleALC. vizshrc, you should remove all patch for audio and all kext for audio (CodecCommander for example), just use AppleALC.kext, as I said:

He suggests using a new version of whatevergreen, since then a lot of water has passed under the bridge and many new versions have come out, I think this won't help solve this problem.

@vizshrc still doesn't work what? Only audio in internal speakers? Did you use my config with my kexts and ACPI patch and clean all older kexts and patch? Also try to reset NVRAM.