Dell XPS L321X - El Capitan / Sierra Install

[thesuffering]

He said the Sierra version is hardcoded.  Id assume it would be changing one of these values?  I dont know enough about it to start fiddling with it though.

[thesuffering]

or somewhere in here

https://github.com/ulysse31/voodoops2controllercypress/blob/master/VoodooPS2Trackpad/VoodooPS2CypressTouchPad.cpp

[GatorGeek]

stick with one or the other, they are both the same except AppleHDA275 is set to layout-id 3 and AppleHDA_ALC275 is set to layout-id =28

if you use the AppleHDA from my bootpack, make sure you use the DSDT and Config from mine as well, if you use theSuffering, make sure you use all his files.

I'd updated the files here

Added Ulysses31's Cypress Touchpad kext and preference pane. It's a bit sensitive to touch though, but 2 fingers scrolling and tapping works.

 

Thanks guys.  I punted to VoodooHDA last night. Audio seems to work well so far with it.

 

I'm keen to try the Cypress touchpad kext.  One question though, how do I install the prefpane? Not sure I've ever encountered one of those before.

[Jake Lo]

Just double click it, when popup comes up, select Install for this user only or for all user in this computer, click Install. Simple

Now go to Preference Pane, it shows on the bottom Cypress...

 

VoodooHDA won't get you HDMI audio output, in this case Displayport output. Go with patched ALC275, need to figure out why it's not working for you.

[GatorGeek]

Just double click it, when popup comes up, select Install for this user only or for all user in this computer, click Install. Simple

Now go to Preference Pane, it shows on the bottom Cypress...

 

VoodooHDA won't get you HDMI audio output, in this case Displayport output. Go with patched ALC275, need to figure out why it's not working for you.

Perhaps I need to redo my DSDT from scratch and retry the 275 audio kext.

Which patches do you recommend?

[Jake Lo]

If you're using all the files from my latest bootpack, it should work. Most important is getting the permission fix and rebuild cache successfully.

[GatorGeek]

Aren't you using the i5 version of the L321x?  I have the i7 version.
I didn't think I could use your DSDT (or SSDT) files if we have different hardware/CPU configs.

[Jake Lo]

SSDT.aml  is generated for your CPU (I didn't include that), not DSDT.

SSDT-PNLF and SSDT-RMNE are for brightness control and NullEthernet, not CPU specific.

[GatorGeek]

1. Uninstalled VoodooHDA
2. Replace my DSDT with Jake's DSDT
3. Copied AppleHDA_ALC275.kext to S/L/E
4. Fixed perms and rebuilt cache with the following results

locals-MBP:~ localuser$ sudo chmod -Rf 755 /L*/E*
locals-MBP:~ localuser$ sudo chown -Rf 0:0 /L*/E*
locals-MBP:~ localuser$ sudo touch -f /L*/E*
locals-MBP:~ localuser$ sudo touch -f /L*/E*
locals-MBP:~ localuser$ sudo touch -f /L*/E*
locals-MBP:~ localuser$ sudo chmod -Rf 755 /S*/L*/E*
locals-MBP:~ localuser$ sudo chown -Rf 0:0 /S*/L*/E*
locals-MBP:~ localuser$ sudo touch -f /S*/L*/E*
locals-MBP:~ localuser$ sudo kextcache -Boot -U /
rebuilding //System/Library/PrelinkedKernels/prelinkedkernel
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext EAPDFix.kext
KernelCache ID: 49C8B53C168CEA1F2AC096D9697E5C48
File at path '/System/Library/PrelinkedKernels/prelinkedkernel' changed, cannot be used
Child process /usr/sbin/kextcache[689] exited with status 77.
Error 107 rebuilding /System/Library/PrelinkedKernels/prelinkedkernel
locals-MBP:~ localuser$ 

 

[GatorGeek]

I also keep getting this alert

 

Updating perms & cache doesn't seem to make it go away.