Compiling AppleALC For ALC 287 Legion 7i Intel 10th Gen to get Internal Speaker working

[RizkiAA]

Spoiler

Hello everybody...this is my first post on this forum....

Specs:
Laptop: Legion 7i 15IMH
Processor : Intel Core i7-10750H
Memory : 16GB DDR4
iGPU : Intel UHD 630 for 10th Gen Comet Lake-H GT2
dGPU : Nvidia RTX 2070 Max-Q 8GB GDDR6 VRAM (Disabled)
Wi-Fi : Intel Wi-Fi 6 AX201
Ethernet : Realtek RTL8168 Gigabit Ethernet
Audio : Realtek ALC 287
Storage : 1x Samsung MZVLB1T0HBLR-000L2 NVME SSD 1TB(Disabled) + 1x RX7 256GB NVME
Keyboard : PS2 Keyboard
Touchpad : MSFT0001 I2C Touchpad
Thunderbolt : Available(Thunderbolt 3)
Keyboard backlight : Available (Corsair)
Display : Full HD (1920x1080p) 144Hz
Bootloader : OpenCore 1.0.5
macOS Version : macOS Big Sur 11.3.1

According to AppleALC codec list there are 3 id i can use for my system, which are: 11,13,21. I have tried them all and the one works best is the 13 because these works:

1. Internal Mic
2. External Mic
3. Headphone Jack (automatically switches when plugging headphone from "Internal Speaker" to "Headphone"

 

although "Internal Speaker" is detected in System Preferences (and i can change the volume from setting and even FN keys) but there is no sound whatsoever no matter how i crank the volume

when plugging in headphone, it switches automatically and everything works fine...

So the problem is internal speaker dont give any sound output..

Here's what ive tried:
 

1. Following this guide to change coefficient, i dump coefficient from Linux and so far only three are different, applying all those 3 using alc-verb still result in no internal speaker sound...
2. i'm reading this thread which has the same exact model and codec as mine and has similar issue.. the last guy @cankiulascmnfye suggested creating a new AppleALC Layout which is what i'm currently doing

 

I tried building AppleALC layout by following this guide and this is what my codec-graph looks like as dumped from Linux and visualized by Codec-Graph app:

 

exactly same with the one here

As shown from the diagram above, the Internal Speaker should be shown as "[FIXED] Speaker at Int N/A Stereo OUT HP Detect" and is connected to:

1. 2 (0x02)
2. 3 (0x03)
3. 6 (0x06)

 

By following the guide, i duplicated Platforms13.xml and rename the duplicated to be Platforms17.xml. And since everything works except for the internal speaker, i leave everything as previously and only change only the internal output from (20-2) to (23-3) as shown in the given code below :
 

<array>
							<dict>
								<key>Amp</key>
								<dict>
									<key>MuteInputAmp</key>
									<false/>
									<key>PublishMute</key>
									<true/>
									<key>PublishVolume</key>
									<true/>
									<key>VolumeInputAmp</key>
									<false/>
								</dict>
								<key>NodeID</key>
								<integer>23</integer>
							</dict>
							<dict>
								<key>Amp</key>
								<dict>
									<key>Channels</key>
									<array>
										<dict>
											<key>Bind</key>
											<integer>1</integer>
											<key>Channel</key>
											<integer>1</integer>
										</dict>
										<dict>
											<key>Bind</key>
											<integer>2</integer>
											<key>Channel</key>
											<integer>2</integer>
										</dict>
									</array>
									<key>MuteInputAmp</key>
									<false/>
									<key>PublishMute</key>
									<true/>
									<key>PublishVolume</key>
									<true/>
									<key>VolumeInputAmp</key>
									<false/>
								</dict>
								<key>NodeID</key>
								<integer>3</integer>
							</dict>
						</array>

from the previously:

 

					<array>
						<array>
							<dict>
								<key>Amp</key>
								<dict>
									<key>MuteInputAmp</key>
									<false/>
									<key>PublishMute</key>
									<true/>
									<key>PublishVolume</key>
									<true/>
									<key>VolumeInputAmp</key>
									<false/>
								</dict>
								<key>NodeID</key>
								<integer>20</integer>
							</dict>
							<dict>
								<key>Amp</key>
								<dict>
									<key>Channels</key>
									<array>
										<dict>
											<key>Bind</key>
											<integer>1</integer>
											<key>Channel</key>
											<integer>1</integer>
										</dict>
										<dict>
											<key>Bind</key>
											<integer>2</integer>
											<key>Channel</key>
											<integer>2</integer>
										</dict>
									</array>
									<key>MuteInputAmp</key>
									<false/>
									<key>PublishMute</key>
									<true/>
									<key>PublishVolume</key>
									<true/>
									<key>VolumeInputAmp</key>
									<false/>
								</dict>
								<key>NodeID</key>
								<integer>2</integer>
							</dict>
						</array>
					</array>

i also have tried these path (only. tried those because on the schematics, the internal speaker was only connected to 3 Output, the fourth is connected to an input which then a mixer which i dont have any idea to use it, (audio feedback?)) :

1. 23-2
2. 23-3
3. 23-6

 

After trying the three path, compiled them one by one, and restart the PC, so far... here is the result from each path:

 

1. 23-2: Still No Internal speaker sound (same as layout13 where everything works except internal speaker
2. 23-3: Device do not appear at all
3. 23-6: Device do not appear at all

 

So far, i only modified 4 files guided by the guide which i will upload here as "Modified Files.zip", also upload my OpenCore config.plist and ioreg just in case

 

 

Any idea of what is wrong? any help will be appreciated😇

 

 

 

Modified Files.zip config.plist ioreg.ioreg codec_dump.txt