[Guide] Disabling discrete graphics in dual-GPU laptops

[RehabMan]

Ok I'll do that later, it's 1am midnight now in my time zone.
BTW, all the patches are from your guide. I think the off method or the sgof method might accessed the ec.Could you check that?

As a for example, I don't know why you added _PRW to Device(SBUS). It is as if you applied Skylake specific _PRW patch to your non-Skylake DSDT.

Make sure do not apply patches that are not appropriate for your hardware.

Note also that your DSDT has Mutex objects with non-zero SyncLevel, yet you didn't patch for it.
And the way you removed the Name(...,"*pnp) instead of changing *pnp to pnp, is wrong (there is no patch in my guide that removes the Name object in such a case, but there is one to fix it).

 

[z1326]

As a for example, I don't know why you added _PRW to Device(SBUS). It is as if you applied Skylake specific _PRW patch to your non-Skylake DSDT.

Make sure do not apply patches that are not appropriate for your hardware.

Note also that your DSDT has Mutex objects with non-zero SyncLevel, yet you didn't patch for it.
And the way you removed the Name(...,"*pnp) instead of changing *pnp to pnp, is wrong (there is no patch in my guide that removes the Name object in such a case, but there is one to fix it).

I tried the original dsdt without any patches but the auto shutdown remains.
This is the Clover.

 

[z1326]

Verbose.

 

[algnam94]

I am having a problem in disabling AMD Radeon 7650M Graphics for a Sony Vaio with BIOS R0204E6.The BIOS does not provide any option for disabling from it so I have tried the patches both SSDT and DSDT from your repository but nothing works as of now. Can u please help me in fixing it?

SSDT-6.aml is for graphics.

 

[RehabMan]

I tried the original dsdt without any patches but the auto shutdown remains.
This is the Clover.

This ACPI configuration is wrong. You have unbalanced renames. SSDT-9/SSDT-8 use IGPU, but DSDT uses GFX0.

 

[RehabMan]

I am having a problem in disabling AMD Radeon 7650M Graphics for a Sony Vaio with BIOS R0204E6.The BIOS does not provide any option for disabling from it so I have tried the patches both SSDT and DSDT from your repository but nothing works as of now. Can u please help me in fixing it?

SSDT-6.aml is for graphics.

Your profile indicates you have only AMD graphics. No Intel. Post output of 'lspci -nn' in Linux Terminal to confirm.

If you have only AMD, trying to disable it is nonsense.

 

[z1326]

This ACPI configuration is wrong. You have unbalanced renames. SSDT-9/SSDT-8 use IGPU, but DSDT uses GFX0.

Because I tried a completely original dsdt without any patches. ( so "Rename GFX0 to IGPU" was not applied as well.)
The dsdt in Clover folder in #780 does not have this problem. But it didn't solve the problem as well.

Also I found:

If I use a completely original dsdt without any patches, and the modified ssdt then OS X will auto shutdown before the login screen. (as verbose screen in #787 showed)

If I use a dsdt with only one patch --- "Rename GFX0 to IGPU", and the modified ssdt then the discrete graphics could not be disabled.

Is this some kind of clue ?

 

[RehabMan]

Because I tried a completely original dsdt without any patches. ( so "Rename GFX0 to IGPU" was not applied as well.)

If you're going to do that, you need to use unpatched SSDTs as well.

 

[z1326]

Your profile indicates you have only AMD graphics. No Intel. Post output of 'lspci -nn' in Linux Terminal to confirm.

If you have only AMD, trying to disable it is nonsense.

I am pretty sure that I have hd4600.This is the screen shot of device manager in windows.
Is this enough?Do I still need to get linux?

 

[RehabMan]

I am pretty sure that I have hd4600.This is the screen shot of device manager in windows.
Is this enough?Do I still need to get linux?

My #790 was reply to @algnam94, not you.