++Last modified: Sun May 31 2020 05:55:38 GMT+0000 (Coordinated Universal Time)
+
Fixing Backlight: Manual
+ +Finding the ACPI path
+For this guide, we're gonna assume Windows is already on this laptop, as otherwise creating this SSDT is a bit more difficult.
+Now open DeviceManager, and head to the following:
+Device Manager -> Display Adapters -> Properties -> Details > BIOS device name
+-
+
- Note some GPU ACPI pathing may be hiding under "BIOS device name" +
From the above example, we can see our display is hooked up to PCI0.GFX0
Edits to the sample SSDT
+Now that we have our ACPI path, lets grab our SSDT and get to work:
+-
+
- SSDT-PNLF.dsl +
- SSDT-PNLF-CFL.dsl
-
+
- For Coffee Lake and newer +
+
By default, this uses PCI0.GFX0 for the pathing. you'll want to rename accordingly. For this example, we'll assume your pathing is PCI0.GPU0:
Before:
+External (_SB_.PCI0.GFX0, DeviceObj) <- Rename this
+
+Scope (_SB.PCI0.GFX0) <- Rename this
+
+Device(_SB.PCI0.GFX0.PNLF) <- Rename this
+
Following the example pathing we found, the SSDT should look something like this:
+After:
+External (_SB_.PCI0.GPU0, DeviceObj) <- Renamed
+
+Scope (_SB.PCI0.GPU0) <- Renamed
+
+Device(_SB.PCI0.GPU0.PNLF) <- Renamed
+
Compiling the SSDT
+With the SSDT done, you're now ready to compile the SSDT!
+Wrapping up
+Once you're done making your SSDT, either head to the next page to finish the rest of the SSDTs or head here if you're ready to warp up:
+-
+
- Cleanup +
