Alienware m17x r3 DSDT suddenly causing kernel panics in OS and Install USB

[TittyKitty]

Is your system dual-GPU switched (eg. both available to Windows, but sharing output ports), or is it dual-GPU with each GPU having dedicated ports, or mutually exclusive with each other?

I think it's dual-GPU switched. Both are available to windows and they share output ports. The Intel is onboard and the ATI is some form of PCIe. If I have the bios set to switchable graphics windows seems to prioritize the 6870M, but OSX the HD3000 (although there are artifacts in OSX with SG on). If I install the right drivers in windows, I can switch them on the fly with a function key. Normally, you're not supposed to be able to disable one or the other, but I installed an unlocked bios that lets me do it.

 

[RehabMan]

I think it's dual-GPU switched. Both are available to windows and they share output ports. The Intel is onboard and the ATI is some form of PCIe. If I have the bios set to switchable graphics windows seems to prioritize the 6870M, but OSX the HD3000 (although there are artifacts in OSX with SG on). If I install the right drivers in windows, I can switch them on the fly with a function key. Normally, you're not supposed to be able to disable one or the other, but I installed an unlocked bios that lets me do it.

You should leave both on in BIOS so you can use the Radeon in Windows. Then disable the Radeon with DSDT/SSDT edits. Basic idea: find SSDT with _OFF, call _OFF from _INI).

 

[TittyKitty]

You should leave both on in BIOS so you can use the Radeon in Windows. Then disable the Radeon with DSDT/SSDT edits. Basic idea: find SSDT with _OFF, call _OFF from _INI).

I'll try, but I don't have the slightest clue how to go about doing that, haha. I have some programming experience though, so I guess I could probably figure it out with enough effort.

 

[RehabMan]

I'll try, but I don't have the slightest clue how to go about doing that, haha. I have some programming experience though, so I guess I could probably figure it out with enough effort.

And probably if you do some searching, you'll see where I walked through the process. It is a relatively simple edit, but there are lots of mistakes that can be made when trying to provide patched SSDTs.

 

[TittyKitty]

And probably if you do some searching, you'll see where I walked through the process. It is a relatively simple edit, but there are lots of mistakes that can be made when trying to provide patched SSDTs.

I tried doing it by following this guide, but when I opened my decompiled ssdt-4 and tried to compile it I get a bunch of compiler errors. I even started from scratch and re-extracted my DSDT and SSDTs after changing the bios to use switchable graphics.

View attachment SSDT.zip

Edit: I just realized I decompiled it with the DSDT I had patched. I'm trying again with the original.

Edit 2: I decompiled it again with the original DSDT and this time it worked, so I patched it with the GFX0 replacement patch and added _OFF () to _INI, but after moving all the SSDTs to extra, renaming the SSDT-4 to SSDT-1 and correcting the order of the remaining SSDTs, it boots fine but still shows the 6870M under devices in system information. I don't seem to be getting any artifacts though, so I guess it's fine...

 

[RehabMan]

I tried doing it by following this guide, but when I opened my decompiled ssdt-4 and tried to compile it I get a bunch of compiler errors. I even started from scratch and re-extracted my DSDT and SSDTs after changing the bios to use switchable graphics.

View attachment 105948

Edit: I just realized I decompiled it with the DSDT I had patched. I'm trying again with the original.

Edit 2: I decompiled it again with the original DSDT and this time it worked, so I patched it with the GFX0 replacement patch and added _OFF () to _INI, but after moving all the SSDTs to extra, renaming the SSDT-4 to SSDT-1 and correcting the order of the remaining SSDTs, it boots fine but still shows the 6870M under devices in system information. I don't seem to be getting any artifacts though, so I guess it's fine...

Calling _OFF from _INI in ssdt-4 should do the trick. If it doesn't work, post ioreg: http://www.tonymacx86.com/audio/58368-guide-how-make-copy-ioreg.html

 

[TittyKitty]

Sorry for the late reply. Attached is a copy of my IOReg. I also included almost everything in my extras folder just in case.

View attachment Archive.zip

It's worth noting that I applied the "Replace Names" patch to my DSDT but not any of my SSDTs. Also, I haven't changed the IRQ patch yet. I'm not sure if either of those things would make a difference.

 

[RehabMan]

Sorry for the late reply. Attached is a copy of my IOReg. I also included almost everything in my extras folder just in case.

View attachment 106041

It's worth noting that I applied the "Replace Names" patch to my DSDT but not any of my SSDTs. Also, I haven't changed the IRQ patch yet. I'm not sure if either of those things would make a difference.

DropSSDT must be set to Yes to provide patched SSDTs.

And the order of the original SSDTs should be preserved.

 

[TittyKitty]

DropSSDT must be set to Yes to provide patched SSDTs.

And the order of the original SSDTs should be preserved.

I actually had DropSSDT set to Yes until a few minutes ago, but I wasn't clear on what exactly it did so I changed it to No to test it. I just tried changing it back to Yes and setting everything in the original order and it still shows the 6870M in System Information. :/

When I extracted the SSDTs they were named SSDT, SSDT2, etc. and it skipped SSDT1. Should I move them all down a number so there's an SSDT-1 in extras? Also, should there be a hyphen in the name if there wasn't one when I extracted them?

 

[RehabMan]

I actually had DropSSDT set to Yes until a few minutes ago, but I wasn't clear on what exactly it did so I changed it to No to test it. I just tried changing it back to Yes and setting everything in the original order and it still shows the 6870M in System Information. :/

When I extracted the SSDTs they were named SSDT, SSDT2, etc. and it skipped SSDT1. Should I move them all down a number so there's an SSDT-1 in extras? Also, should there be a hyphen in the name if there wasn't one when I extracted them?

Post ioreg: http://www.tonymacx86.com/audio/58368-guide-how-make-copy-ioreg.html.

ACPI files go in /Extra, not 'extras'. Yes, you need to add the dash. You need to number them sequentially... SSDT.aml (probably generated), SSDT-1.aml, SSDT-2.aml, etc, retaining the original order.