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No audio after update to Big Sur 11.3.1

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Crashed_Airplane said:
My system Asus Laptop with Big Sur 11.2.1 is working oke.
After the update to 11.3.1 I have no sound anymore does anybody have any idea why that is?
In 11.2.1 my audio was working with VoodooHDA.kext and opencore 6.0.9
Click to expand...
i have moved your post to laptop support
 
I wil try that, I have a ALC269 and it has a lot of layout ID's:(
layout 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 27, 28, 29, 30, 32, 33, 35, 40, 44, 45, 47, 55, 58, 66, 76, 77, 88, 91, 93, 99, 100, 127, 128, 188
Do I have to clear the nvram before every restart?
 
MacOS Monterey (X750LN asus laptop)
Other |  i5 Other |  HD 4600
MacOS Big Sur 11.4 Desktop
Z170A SLI |  i7 6700K |  HD 530
Crashed_Airplane said:
I wil try that, I have a ALC269 and it has a lot of layout ID's:(
layout 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 27, 28, 29, 30, 32, 33, 35, 40, 44, 45, 47, 55, 58, 66, 76, 77, 88, 91, 93, 99, 100, 127, 128, 188
Do I have to clear the nvram before every restart?
Click to expand...

You just need to change the boot flag :) No NVRAM reset

```
config.plist
├── NVRAM
├──── Add
├────── 7C436110-AB2A-4BBB-A880-FE41995C9F82
├──────── boot-args | String | alcid=1
```

Most of the time I am lucky, it's the first layout id that works for me
 
Crashed_Airplane said:
Tried all of them no luck.
Have got my audio working now with VoodooHDA.
The VoodooHDA.kext in the system folder and the AppleHDADisabler.kext in de OC folder, that did it form me.
Click to expand...
sometimes better to add the info like:

Code: 
<key>DeviceProperties</key>
    <dict>
        <key>Add</key>
        <dict>
            <key>PciRoot(0x0)/Pci(0x1F,0x3)</key>
            <dict>
                <key>AAPL,slot-name</key>
                <string>Internal@0,31,3</string>
                <key>device-id</key>
                <data>
                cKEAAA==
                </data>
                <key>device_type</key>
                <string>Audio device</string>
                <key>hda-gfx</key>
                <string>onboard-1</string>
                <key>layout-id</key>
                <integer>17</integer>
                <key>model</key>
                <string>100 Series/C230 Series Chipset Family HD Audio Controller</string>
            </dict>

reset nvram when changing to a different number on each boot
 
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