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Lenovo Legion Y720 questions...

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How about now ? no audio still. xD

When using aDummyHDA.kext, you must boot without caches, rebuild cache, reboot.
It should show in the kextcache log *before* the "KernelCache ID" line.

You may also need FakePCIID_Intel_HDMI_Audio.kext.

You should also check that your aDummyHDA.kext is coded for ALC235 and that it uses layout-id=3.
Make sure AppleHDA.kext is valid for the version you're running (best way: run the macOS installer).
 
When using aDummyHDA.kext, you must boot without caches, rebuild cache, reboot.
It should show in the kextcache log *before* the "KernelCache ID" line.

You may also need FakePCIID_Intel_HDMI_Audio.kext.

You should also check that your aDummyHDA.kext is coded for ALC235 and that it uses layout-id=3.
Make sure AppleHDA.kext is valid for the version you're running (best way: run the macOS installer).

after adding FakePCIID_Intel_HDMI_Audio.kext no audio but when I tried patching again and FakePCIID_Intel_HDMI_Audio.kext is present this message appeared.
 

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after adding FakePCIID_Intel_HDMI_Audio.kext no audio but when I tried patching again and FakePCIID_Intel_HDMI_Audio.kext is present this message appeared.

Ignore. Use FakePCIID_Intel_HDMI_Audio.kext.
 
Ignore. Use FakePCIID_Intel_HDMI_Audio.kext.
thanks Rehabman it works now. but can I put aDummyHDA.kext and CodecCommander.kext in /L/E instead of /S/L/E ?

before we continue to the keyboard backlight there seem to be an issue with battery and power in my case

When MacOS starts it will lag for about 10-15 seconds then it functions normally (like if I move the mouse or open an app using keyboard animations lag)
I thought it could be a PS2 problem som I removed it but the same happened?

Battery:

On Windows the battery Charges to 100% then it stops charging then when it goes to 95% for the purpose of a longer battery life it stops there. but on MacOS for example if I was working on windows and the battery was discharging to reach 95% let's say it was 99% when I restart to MacOS it says charged on 99% and it doesn't discharge to reach the 95% is it anything to be concerned about and is there any fix ?

Power:

When I plug my iPhone the iPhone doesn't charge very well and sometimes the percentage freezes on the current number only when I charge on the MacOS what's wrong with it I don't know but do you have a clue ?
 
Last edited:
thanks Rehabman it works now. but can I put aDummyHDA.kext and CodecCommander.kext in /L/E instead of /S/L/E ?

As per FAQ, kexts should be installed to /L/E on 10.11 and later:
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/

before we continue to the keyboard backlight there seem to be an issue with battery and power in my case

When MacOS starts it will lag for about 10-15 seconds then it functions normally (like if I move the mouse or open an app using keyboard animations lag)
I thought it could be a PS2 problem som I removed it but the same happened?

Read here:
https://www.tonymacx86.com/threads/readme-common-problems-in-10-13-high-sierra.233582/

Battery:

On Windows the battery Charges to 100% then it stops charging then when it goes to 95% for the purpose of a longer battery life it stops there. but on MacOS for example if I was working on windows and the battery was discharging to reach 95% let's say it was 99% when I restart to MacOS it says charged on 99% and it doesn't discharge to reach the 95% is it anything to be concerned about and is there any fix ?

No expectation of discharge when plugged into AC adapter.

Power:

When I plug my iPhone the iPhone doesn't charge very well and sometimes the percentage freezes on the current number only when I charge on the MacOS what's wrong with it I don't know but do you have a clue ?

Make sure you implemented USB power properties and configured USB correctly.
See FAQ for links:
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/
 
As per FAQ, kexts should be installed to /L/E on 10.11 and later:
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/



Read here:
https://www.tonymacx86.com/threads/readme-common-problems-in-10-13-high-sierra.233582/



No expectation of discharge when plugged into AC adapter.



Make sure you implemented USB power properties and configured USB correctly.
See FAQ for links:
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/

Hey Rehabman, I was trying to fix the EDID override to fix screen glitches but it is not fixing anything I tried Macbook Pro and iMac 20th byte and calculated checksum each time and converted vendor/product-ids to decimal then added to override folder no luck.

Code:
Default EDID

00ffffff ffffff00 09e5c606 00000000 011a0104 95221378 02c9a095 5d599429 24505400 00000101 01010101 01010101 01010101 01019c3b 80367138 3c403020 360058c2 1000001a 00000000 00000000 00000000 00000000 00000000 00fe0042 4f452043 510a2020 20202020 000000fe 004e5631 35364648 4d2d4e34 320a00cd

20th byte: 95
checksum: cd

with MacBook Pro 20th byte

00FFFFFF FFFFFF00 09E5C606 00000000 011A0104 A5221378 02C9A095 5D599429 24505400 00000101 01010101 01010101 01010101 01019C3B 80367138 3C403020 360058C2 1000001A 00000000 00000000 00000000 00000000 00000000 00FE0042 4F452043 510A2020 20202020 000000FE 004E5631 35364648 4D2D4E34 320A00BD

with iMac 20th byte

00FFFFFF FFFFFF00 09E5C606 00000000 011A0104 B5221378 02C9A095 5D599429 24505400 00000101 01010101 01010101 01010101 01019C3B 80367138 3C403020 360058C2 1000001A 00000000 00000000 00000000 00000000 00000000 00FE0042 4F452043 510A2020 20202020 000000FE 004E5631 35364648 4D2D4E34 320A00AD

Vendor-ID: 2533. (hex: 9e5)

Product-ID: 1734. (hex:6c6)
 

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  • debug_6281.zip
    2.2 MB · Views: 71
  • DisplayVendorID-9e5.zip
    1.3 KB · Views: 53
  • EDID dump.zip
    2 KB · Views: 68
Hey Rehabman, I was trying to fix the EDID override to fix screen glitches but it is not fixing anything I tried Macbook Pro and iMac 20th byte and calculated checksum each time and converted vendor/product-ids to decimal then added to override folder no luck.

Code:
Default EDID

00ffffff ffffff00 09e5c606 00000000 011a0104 95221378 02c9a095 5d599429 24505400 00000101 01010101 01010101 01010101 01019c3b 80367138 3c403020 360058c2 1000001a 00000000 00000000 00000000 00000000 00000000 00fe0042 4f452043 510a2020 20202020 000000fe 004e5631 35364648 4d2d4e34 320a00cd

20th byte: 95
checksum: cd

with MacBook Pro 20th byte

00FFFFFF FFFFFF00 09E5C606 00000000 011A0104 A5221378 02C9A095 5D599429 24505400 00000101 01010101 01010101 01010101 01019C3B 80367138 3C403020 360058C2 1000001A 00000000 00000000 00000000 00000000 00000000 00FE0042 4F452043 510A2020 20202020 000000FE 004E5631 35364648 4D2D4E34 320A00BD

with iMac 20th byte

00FFFFFF FFFFFF00 09E5C606 00000000 011A0104 B5221378 02C9A095 5D599429 24505400 00000101 01010101 01010101 01010101 01019C3B 80367138 3C403020 360058C2 1000001A 00000000 00000000 00000000 00000000 00000000 00FE0042 4F452043 510A2020 20202020 000000FE 004E5631 35364648 4D2D4E34 320A00AD

Vendor-ID: 2533. (hex: 9e5)

Product-ID: 1734. (hex:6c6)

What "screen glitches" are you referring to?
 
What "screen glitches" are you referring to?
Sorry I mean lag! The mouse takes time to move the keyboard takes time to respond when I open an app immediately it will take sometime to appear in the dock for about 10-15 seconds the same thing happens when the laptop gets out of sleep (after sleep it stays like that until restart)
 
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