El Capitan Beta with Dell XPS 13 9343 (Early 2015 Model)

[egore]

Patched AppleHDA does not work from Clover/kexts. Must be installed to the system volume.

Thanks RhM. Maybe I wasn't clear, I do have the patched AppleHDA kext in S/L/E. The only kext I have in Clover/kexts is the RealtekALC kext. I read in one of the guides that it may be needed. Do you think that it should be removed? Just to be noted, I've tried with and without this installed and the sound still goes out.

 

[RehabMan]

Thanks RhM. Maybe I wasn't clear, I do have the patched AppleHDA kext in S/L/E. The only kext I have in Clover/kexts is the RealtekALC kext. I read in one of the guides that it may be needed. Do you think that it should be removed? Just to be noted, I've tried with and without this installed and the sound still goes out.

Do not mix solutions.

RealtekALC.kext is used as an AppleHDA injector (sometimes called dummyHDA), which requires vanilla AppleHDA (+Clover patches, normal ACPI edits). Patched AppleHDA.kext works by replacing the entire AppleHDA with a new one (already has the patches).

Read the FAQ for information regarding DSDT patches required.

 

[egore]

Do not mix solutions.

RealtekALC.kext is used as an AppleHDA injector (sometimes called dummyHDA), which requires vanilla AppleHDA (+Clover patches, normal ACPI edits). Patched AppleHDA.kext works by replacing the entire AppleHDA with a new one (already has the patches).

Read the FAQ for information regarding DSDT patches required.

Okay, I'll remove the RealtekALC kext.

I've patched the DSDT with the 3 layout. I'll look again to see if I missed something in the FAQ.

 

[RehabMan]

Okay, I'll remove the RealtekALC kext.

I've patched the DSDT with the 3 layout. I'll look again to see if I missed something in the FAQ.

"IRQ Fix"?

Did you verify your patched AppleHDA uses layout-id 3?

 

[egore]

"IRQ Fix"?

Did you verify your patched AppleHDA uses layout-id 3?

Yes, IRQ Fix applied to DSDT. Not sure how to verify that, but I did use the patcher and the provided ALC288 folder (info) to do the patch.

 

[RehabMan]

Yes, IRQ Fix applied to DSDT. Not sure how to verify that, but I did use the patcher and the provided ALC288 folder (info) to do the patch.

You would have to look at your DSDT to see if the patch is applied.

No idea what you mean by "but I did use the patcher and the provided ALC288 folder (info)"...

You didn't answer my question about layout-id.

 

[egore]

You would have to look at your DSDT to see if the patch is applied.

No idea what you mean by "but I did use the patcher and the provided ALC288 folder (info)"...

You didn't answer my question about layout-id.

I was referring to not sure how to verify the layout-id.

I did take a look at the info.plist of the patched AppleHDA and found a reference to layout:

<key>IOKitPersonalities</key>
<dict>
<key>HDA Driver</key>
<dict>
<key>CFBundleIdentifier</key>
<string>com.apple.driver.AppleHDA</string>
<key>IOClass</key>
<string>AppleHDADriver</string>
<key>IOProviderClass</key>
<string>AppleHDACodec</string>
<key>InputSampleLatency</key>
<integer>0</integer>
<key>MultiDisplayPorts</key>
<array>
<integer>32</integer>
<integer>35</integer>
<integer>66</integer>
</array>
<key>OutputSampleLatency</key>
<integer>0</integer>
<key>SampleOffsetPad</key>
<integer>0</integer>
<key>SystemSpecificSampleOffsetPad</key>
<array>
<dict>
<key>LayoutID</key>
<integer>8</integer>
<key>SampleOffsetPad</key>
<integer>260</integer>
</dict>
</array>
</dict>
<key>HDA Generic Codec Driver</key>
<dict>
<key>CFBundleIdentifier</key>
<string>com.apple.driver.AppleHDA</string>
<key>IOClass</key>
<string>AppleHDACodecGeneric</string>
<key>IOHDACodecFunctionGroupType</key>
<integer>1</integer>
<key>IOProviderClass</key>
<string>IOHDACodecFunction</string>
</dict>
</dict>


It shows 8 here. Is that a correct means of checking, or am I looking in the wrong place? Obviously, the layout should be 3 for this machine...

 

[egore]

I found this at AppleHDA.kext/Contents/PlugIns/AppleHDAHardwareConfigDriver.kext/Contents/Info.plist

(Which is the proper codecID for alc288):


<key>IOKitPersonalities</key>
<dict>
<key>HDA Hardware Config Resource</key>
<dict>
<key>CFBundleIdentifier</key>
<string>com.apple.driver.AppleHDAHardwareConfigDriver</string>
<key>HDAConfigDefault</key>
<array>
<dict>
<key>AFGLowPowerState</key>
<data>
AQAAAA==
</data>
<key>CodecID</key>
<integer>283902600</integer>
<key>ConfigData</key>
<data>
ASccEAEnHQABJx6gAScfkAE3HCABNx0AATce
AAE3H0ABRxwwAUcdAAFHHhcBRx+QAYccQAGH
HRABhx6BAYcfAgHXHFAB1x2AAdceZQHXH0AC
FxxgAhcdEAIXHiECFx8BAUcMAg==
</data>
<key>FuncGroup</key>
<integer>1</integer>
<key>LayoutID</key>
<integer>3</integer>
</dict>

Is it safe to say AppleHDA is in fact using the correct layout-id (3)?

 

[RehabMan]

I was referring to not sure how to verify the layout-id.

Verifying layout-id is covered in the ACPI patching guide.

It shows 8 here. Is that a correct means of checking, or am I looking in the wrong place? Obviously, the layout should be 3 for this machine...

You are looking in the wrong place.

 

[egore]

Verifying layout-id is covered in the ACPI patching guide.



You are looking in the wrong place.

Yes, I had subsequently found that information in the guide and my next post was that result:

"I found this at AppleHDA.kext/Contents/PlugIns/AppleHDAHardwareConfigDriver.kext/Contents/Info.plist

(Which is the proper codecID for alc288):


<key>IOKitPersonalities</key>
<dict>
<key>HDA Hardware Config Resource</key>
<dict>
<key>CFBundleIdentifier</key>
<string>com.apple.driver.AppleHDAHardwareConfigDri ver</string>
<key>HDAConfigDefault</key>
<array>
<dict>
<key>AFGLowPowerState</key>
<data>
AQAAAA==
</data>
<key>CodecID</key>
<integer>283902600</integer>
<key>ConfigData</key>
<data>
ASccEAEnHQABJx6gAScfkAE3HCABNx0AATce
AAE3H0ABRxwwAUcdAAFHHhcBRx+QAYccQAGH
HRABhx6BAYcfAgHXHFAB1x2AAdceZQHXH0AC
FxxgAhcdEAIXHiECFx8BAUcMAg==
</data>
<key>FuncGroup</key>
<integer>1</integer>
<key>LayoutID</key>
<integer>3</integer>
</dict>

Is it safe to say AppleHDA is in fact using the correct layout-id (3)?"

There were several codecs listed in this section, but this was the first in the list. Should I edit the info.plist and remove the unneeded codec references, or is that not necessary?