DELL LATITUDE 7280 TB

[tldrbro]

@abraxis I think it's the same issue I have, the brightness is actually so low you coudl think there's no output at all. If you use a flash light ( from a smartphone per example) you will see it's on the login screen.

@black.dragon74 We used ssdt-pnlf in patched folder from jake lo's bootpack.

[Bronxteck]

are you using emuvariable.efi clover driver and clover RC scripts? they might be needed for nvram to store your backlight settings. you can install both from clover installer options. you can also try clicking "SetIntelBacklight" or maxbackligt in clover device section

[tldrbro]

@Bronxteck in my case brightness control works only after waking from sleep for some reason. Otherwise at boot there's only two level possible, either full backlight or minimal backlight.

 

@abraxis Do you only have working backlight control after waking from sleep ?

[abraxis]

Im using emuvariable.efi clover driver and clover RC scripts

 

AppleBacklightInjector is in L/E  but system info says not loaded

 

Tried maxbacklight in clover. suddenly my verbose bootup is gone till i get to desktop. (I allow for automatic login)

setintelbacklight brings verbose back.

Both bootup with backlight off.

How do i resolve missing PNLF device?

[black.dragon74]

AppleBacklightInjector is in L/E  but system info says not loaded

Normal for an Injector.

 

Your issue is 100% due to missing PNLF device

 

Place the attached SSDT in EFI/CLOVER/ACPI/patched

 

Remember, You need to have your GFX0 device renamed to IGPU in your ACPi tables.

 

If something doesn't work, Attach proper problem reporting files. See How to generate proper problem reporting files

 

Regards

SSDT-PNLF.zip

[abraxis]

sorry, but how do i edit this?  

GFX0 device renamed to IGPU in your ACPi tables.

 

Replacing the PNLF file caused some corruption in the EFI partition.

Couldnt fix with disk utility had to start over.

Ive been restoring from an earlier installation.

Feels very unstable.

Im going to start fresh and install osx with Jakes last 7280 zip files.

 

Do you know how to resolve the WIFI (dell 1830)  not being able to turn on?

 

i attached my last ioreg report if that helps.

 

Would updating bios help or hinder?

debug_11805.zip

[Jake Lo]

Re-export the raw DSDT/SSDT. If you're going to upgrade the BIOS, do so before exporting the new raw DSDT/SSDT by hitting F4 during Clover boot.

Compress and attach the Origin folder here for re-patching.

[abraxis]

updated Bios.  1.6.5

 

Heres my origin files.

Thanks Jake

 

 

origin.zip

[Jake Lo]

Here, 

First delete or backup the DSDT and SSDT

Leaving only SSDT-PNLF and SSDT-ALC256

Then replace these into /EFI/Clover/ACPI/Patched

7280_1.6.5.zip

[abraxis]

Jake this worked brilliantly!!

System is so much more stable

 

Even windows is more responsive with the Bios update.

 

Wifi / Bluetooth/ sound / Thunderbolt Port working as display output and

Data port with external drive. (as long as it boots up with external drive)

 

The only thing that refuses to enable is the touchpad.

VoodooPS2Controller.kext loaded and registered.

Tried S/L/E and L/E

Cache cleaned and rebooted but something is up.

im attaching one more ioreg report. 

 

Hopefully you can tell me anything about touchpad

and HDMI / display port audio???

Got sound using USB C to HDMI Cable   

Regular HDMI gives static.

 

 

Should AppleHDA_ALC256B.kext always be in L/E?

debug_11337.zip