Create README.md

Alienware M17 R4/README.md

@@ -0,0 +1,47 @@
+![200627962_601033467536488_7690653762214029783_n](https://user-images.githubusercontent.com/23656651/152617253-65163747-1a77-4290-a6ae-aad78a309005.jpeg)
+
+https://www.tonymacx86.com/threads/guide-11-2-3-alienware-m17-r4-2021-opencore-0-6-9.313024/
+
+Hi,
+
+I would like to report that I was successfully able to install Mac OS Big Sur on my Alienware m17 R4 (latest model as of May 2021).
+
+Specs
+
+Intel Core i7-10870H
+Nvidia RTX 3080 (disabled)
+17,3" FHD (1920x1080) 144Hz
+Wi-Fi 6 AX1650
+SSD: 2x1TB Western Digital SN750 (Original were Hynix, I doubt they were compatible)
+
+What works
+
+Sound (AppleALC with layout-id 11)
+Intel UHD (IGPU). Advanced Nvidia Optimus but be enabled! Fn+F7 in Windows.
+Bluetooth (OpenIntelWireless / IntelBluetoothFirmware)
+Wifi (OpenIntelWireless / itlwm)
+Ethernet (out of the box)
+USB (Mapping was hard, see notes below)
+Keyboard (It uses USB instead of PS/2! Was hard to get working, see notes below)
+TrackPad (Gestures + Very Smooth with Voodoo2lc. Must disable Force click and haptic feedback in System Preferences) (Laggy if used with VoodooPS2Controller)
+Sleep (See below)
+Brightness (-igfxblr flag fixes very low brightness at boot. Fixes itself after 5 minutes otherwise)
+External monitor using Display Link USB adapter.
+
+What doesn't work
+
+Thunderbolt 3 to Display Port but I believe it's wired to dGPU.
+Mini DP Port but I believe it's wired to dGPU.
+HDMI but I believe it's wired to dGPU
+
+USB & Keyboard
+
+The keyboard is wired by USB internally instead of using usual PS/2. At first, I couldn't get the keyboard to work at all. The reason was because Mac OS was not detecting the USB HS10 port which the keyboard is connected to. The only way I could get Mac OS to finally detect that missing port was with an SSDT RHUB Patch. I attached it to the thread. Once the port mapping is properly done, the SSDT can be removed.
+
+Sleep
+
+The sleep didn't work perfectly out of the box. Nvidia dGPU must be properly disabled (-wegnoegpu). I also used the flag (igfxonln=1) to make sure the display would always turn back on.
+
+That first part only fixed the sleep/wake, but the laptop would never sleep for longer than 3-5 seconds before turning back on. I had to follow this guide here "GPRW/UPRW/LANC Instant Wake Patch" https://dortania.github.io/OpenCore...t-wake.html#gprw-uprw-lanc-instant-wake-patch
+
+By searching into my DSDT.aml, I found I had the mention of "Method (GPRW, 2". This mean I needed the path SSDT-GPRW.aml + ACPI patch to add in config.plist "GPRW to XPRW Patch".