Contribute
Register

[Guide] Lenovo Y50/Y70 (UHD or 1080p) using Clover UEFI

Status
Not open for further replies.
masterscarhead1 said:
It wants us to change the DSDT in order for the patches to work. Is that required with the DSDT from post 1?
Click to expand...

Depends on the layout-id used by the AppleHDA you've created. It is an arbitrary choice. Mine uses layout-id 86. See patches/audio.txt.
 
RehabMan said:
Depends on the layout-id used by the AppleHDA you've created. It is an arbitrary choice. Mine uses layout-id 86. See patches/audio.txt.
Click to expand...

So there is a prepatched version of AppleHDA for the ALC283 made by Mirone
However, if I delete the previous HDA and _ALC283, and place the patched one in, there is no sound
Is there a way to use the prepatched version without changing DSDT, or is that the only option.
The prepatched install instructions say "Use Layout 3 in the Patch HDEF your DSDT." not sure what that means exactly
The following code is included

Method (_DSM, 4, NotSerialized)
{
Store (Package (0x0c)
{
"built-in",
Buffer (One)
{
0x00
},
"layout-id",
Buffer (0x04)
{
0x03, 0x00, 0x00, 0x00
},
"PinConfigurations",
Buffer (0x00)
{
0x00
}
}, Local0)
DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
Return (Local0)
}
 
masterscarhead1 said:
So there is a prepatched version of AppleHDA for the ALC283 made by Mirone
However, if I delete the previous HDA and _ALC283, and place the patched one in, there is no sound
Is there a way to use the prepatched version without changing DSDT, or is that the only option.
The prepatched install instructions say "Use Layout 3 in the Patch HDEF your DSDT." not sure what that means exactly
The following code is included

Method (_DSM, 4, NotSerialized)
{
Store (Package (0x0c)
{
"built-in",
Buffer (One)
{
0x00
},
"layout-id",
Buffer (0x04)
{
0x03, 0x00, 0x00, 0x00
},
"PinConfigurations",
Buffer (0x00)
{
0x00
}
}, Local0)
DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
Return (Local0)
}
Click to expand...

Ignore any other DSDT patch instructions. Modify patches/audio.txt for layout-id 3.
 
RehabMan said:
Ignore any other DSDT patch instructions. Modify patches/audio.txt for layout-id 3.
Click to expand...
Update: For those who want better audio (fixes heavy bass and low treble):

So it should read
"layout_id", Buffer() { 3, 0x00, 0x00, 0x00}, \n

then run:
cd ~/Projects/y50.git
./disassemble.sh
make patch
make
make install

I deleted both pre-existing AppleHDA and AppleHDA_ALC283, and replaced with AppleHDA from http://www.insanelymac.com/forum/topic/298663-applehda-for-yosemite/, select ALC283 version under laptop! Yes, i know it was patched for Yosemite 10.10.3, but it will work on Yosemite updates and also El Capitan.
 
Rehabman, with the HDA patch, HDMI audio is not working. Is there another file I need to edit?
The audio will come in 1-2 second snippets but shifted in pitch, then silence
 
masterscarhead1 said:
Rehabman, with the HDA patch, HDMI audio is not working. Is there another file I need to edit?
The audio will come in 1-2 second snippets but shifted in pitch, then silence
Click to expand...

You probably forgot to change the layout-id in patches/hdmi_audio.txt.

--

I have taken the content from Mirone's AppleHDA that you linked in post #941.

It is available in the 'alternate_audio' branch.

To test it:
Code: 
cd ~/Projects/y50.git
git fetch
git checkout alternate_audio
make install_hda
make clean
make patch
make 
make install
 
RehabMan said:
You probably forgot to change the layout-id in patches/hdmi_audio.txt.

--

I have taken the content from Mirone's AppleHDA that you linked in post #941.

It is available in the 'alternate_audio' branch.

To test it:
Code: 
cd ~/Projects/y50.git
git fetch
git checkout alternate_audio
make install_hda
make clean
make patch
make 
make install
Click to expand...

^ Script doesn't work. No sound!
I've rebuilt cache already, so not sure what's wrong
Deleted the HDA files again, and recopied Mirone's AppleHDA, sound works again
The HDMI audio is still messed up with the correct buffer-id in HDMI audio txt
 
masterscarhead1 said:
^ Script doesn't work. No sound!
I've rebuilt cache already, so not sure what's wrong
Click to expand...

Did you restore AppleHDA.kext to vanilla?
Did you rebuild cache per post #1, "Known Problems" "Audio"?
 
RehabMan said:
Did you restore AppleHDA.kext to vanilla?
Did you rebuild cache per post #1, "Known Problems" "Audio"?
Click to expand...

Works now. Dunno why it didn't work the first time. Maybe I rebuilt cache before I put back the vanilla AppleHDA
HDMI audio works good too!
Maybe you can update first post for everyone picky about audio
 
Status
Not open for further replies.
Copyright © 2010 - 2024 tonymacx86 LLC
Back
Top