[solved] ProBook 4540s No Audio After High Sierra Install

[guillegomez]

No audio after After High Sierra clean install.

Hp ProBook 4540s
Intel core i7
Graphics: HD 4000

I tried Repair permissions and Rebuild cache but no luck.
I'm attaching my config.plist

Any ideas?

 

[RehabMan]

No audio after After High Sierra clean install.

Hp ProBook 4540s
Intel core i7
Graphics: HD 4000

I tried Repair permissions and Rebuild cache but no luck.
I'm attaching my config.plist

Any ideas?

No "Problem Reporting" files attached.
Read FAQ, "Problem Reporting" again. Carefully. Attach all requested files/output.
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/
Use the tool mentioned in the FAQ, that way it is less likely you'll omit something.

 

[guillegomez]

Files Attached.

 

[RehabMan]

Files Attached.

Why are you using SSDT-4x30s.aml with your 4x40s?

 

[guillegomez]

Why are you using SSDT-4x30s.aml with your 4x40s?

Why are you using SSDT-4x30s.aml with your 4x40s?

Good question.
When I used the 4x40s I got Black Screen.
4x30s works fine except the Audio.

 

[RehabMan]

Good question.
When I used the 4x40s I got Black Screen.

Wrong fix. Must use correct SSDT per your model.

The differences between SSDT-4x30s.dsl and SSDT-4x40s.dsl are small, but important.
And the differences will not cause black screen.

NUC6i7KYK:probook.git rehabman$ diff hotpatch/SSDT-4x30s.dsl hotpatch/SSDT-4x40s.dsl 
1c1
< // SSDT for 4x30s
---
> // SSDT for 4x40s
3c3
< DefinitionBlock ("", "SSDT", 2, "hack", "4x30", 0)
---
> DefinitionBlock ("", "SSDT", 2, "hack", "4x40", 0)
8c8
<     #include "include/layout12_HDEF.asl"
---
>     #include "include/layout13_HDEF.asl"
11c11
<     #include "SSDT-USB-4x30s.asl"
---
>     #include "SSDT-USB-4x40s.asl"
13a14
>     #include "SSDT-XHC.asl"

 

[guillegomez]

Wrong fix. Must use correct SSDT per your model.

The differences between SSDT-4x30s.dsl and SSDT-4x40s.dsl are small, but important.
And the differences will not cause black screen.

NUC6i7KYK:probook.git rehabman$ diff hotpatch/SSDT-4x30s.dsl hotpatch/SSDT-4x40s.dsl
1c1
< // SSDT for 4x30s
---
> // SSDT for 4x40s
3c3
< DefinitionBlock ("", "SSDT", 2, "hack", "4x30", 0)
---
> DefinitionBlock ("", "SSDT", 2, "hack", "4x40", 0)
8c8
<     #include "include/layout12_HDEF.asl"
---
>     #include "include/layout13_HDEF.asl"
11c11
<     #include "SSDT-USB-4x30s.asl"
---
>     #include "SSDT-USB-4x40s.asl"
13a14
>     #include "SSDT-XHC.asl"

You right,
I tried (install_4x40s_hires) and (install_4x40s_hires MOD) and got Black Screen.

Now I tried (install_4x40s) and everything worked fine.
I don't know if those values make any difference but without them I did not have black screen.

Thank you very much for your help.

 

[RehabMan]

You right,
I tried (install_4x40s_hires) and (install_4x40s_hires MOD) and got Black Screen.

Your screen is 1366x768 (your system is lowres), not 1600x900, not 1920x1080, so the hires option is not correct, not expected to work.

 

[guillegomez]

Your screen is 1366x768 (your system is lowres), not 1600x900, not 1920x1080, so the hires option is not correct, not expected to work.

You're right, that was my problem.

Thank you so much...

 

[bulibasha75]

No audio after After High Sierra clean install.

Hp ProBook 4540s
Intel core i7
Graphics: HD 4000

I tried Repair permissions and Rebuild cache but no luck.
I'm attaching my config.plist

Any ideas?

do you still have the HP probook 4540s with mojave on it ?