Thread: what should I modify in ABLN for audio?

Hello,

I'm using AserBLN patched DSDT and I'm not having audio. In AsereBLN guide is clearly stated that audio is disable in his files and could be enabled by modifying ABLN.

Exactly what part shall I modify? My ABLN section look like this:

Code:

    Name (ABLN, 0x0F)
    Method (DTGP, 5, NotSerialized)
    {
        If (LEqual (Arg0, Buffer (0x10)
                {
                    /* 0000 */    0xC6, 0xB7, 0xB5, 0xA0, 0x18, 0x13, 0x1C, 0x44, 
                    /* 0008 */    0xB0, 0xC9, 0xFE, 0x69, 0x5E, 0xAF, 0x94, 0x9B
                }))
        {
            If (LEqual (Arg1, One))
            {
                If (LEqual (Arg2, Zero))
                {
                    Store (Buffer (One)
                        {
                            0x03
                        }, Arg4)
                    Return (One)
                }

                If (LEqual (Arg2, One))
                {
                    Return (One)
                }
            }
        }

        Store (Buffer (One)
            {
                0x00
            }, Arg4)
        Return (Zero)
    }

thanks,
blackdir

Originally Posted by blackdir

Hello,

I'm using AserBLN patched DSDT and I'm not having audio. In AsereBLN guide is clearly stated that audio is disable in his files and could be enabled by modifying ABLN.

Exactly what part shall I modify? My ABLN section look like this:

Code:

    Name (ABLN, 0x0F)
    Method (DTGP, 5, NotSerialized)
    {
        If (LEqual (Arg0, Buffer (0x10)
                {
                    /* 0000 */    0xC6, 0xB7, 0xB5, 0xA0, 0x18, 0x13, 0x1C, 0x44, 
                    /* 0008 */    0xB0, 0xC9, 0xFE, 0x69, 0x5E, 0xAF, 0x94, 0x9B
                }))
        {
            If (LEqual (Arg1, One))
            {
                If (LEqual (Arg2, Zero))
                {
                    Store (Buffer (One)
                        {
                            0x03
                        }, Arg4)
                    Return (One)
                }

                If (LEqual (Arg2, One))
                {
                    Return (One)
                }
            }
        }

        Store (Buffer (One)
            {
                0x00
            }, Arg4)
        Return (Zero)
    }

thanks,
blackdir

If you want the audio stuff then use:

Name (ABLN, 0x0000004f)

Search for the Device (HDEF) and change stuff there according to the thread from Elmangomez. If you change only the ABLN value, then you will have some audio. With the stuff from Elmangomez more will work, but you need one LegacyHDA.kext.

Hello AsereBLN, I tried both your suggestions:

Changing Name (ABLN, 0x0F) to Name (ABLN, 0x0000004f) alone didn't make any difference: in system preferences I still don't have any audio device

When I add the HDEF part taken from Elmangomez thread, not only the audio part does not change, but I even got a non working keyboard (i.e. non key works)

Any suggestion?

Originally Posted by blackdir

Hello AsereBLN, I tried both your suggestions:

Changing Name (ABLN, 0x0F) to Name (ABLN, 0x0000004f) alone didn't make any difference: in system preferences I still don't have any audio device

When I add the HDEF part taken from Elmangomez thread, not only the audio part does not change, but I even got a non working keyboard (i.e. non key works)

Any suggestion?

You must change the value in the DSDT.dsl file. Then compile it with iasl -ta DSDT.dsl and put the resulting DSDT.aml to Chameleon/Extra. Make sure Aliza Audio is enabled in the BIOS.

Originally Posted by AsereBLN

You must change the value in the DSDT.dsl file. Then compile it with iasl -ta DSDT.dsl and put the resulting DSDT.aml to Chameleon/Extra. Make sure Aliza Audio is enabled in the BIOS.

And you need to copy the kext in my post to /E/E... Are you sure also that you are plugging to green ports at rear, and go into System Preferences and change your output to Internal Speakers (when plugged in rear plug) or Headphones when plugged to front plug.

To test, you should use the patched dsdt.aml (without my HDEF section first) and ABLN keyword 0x4f, and WITHOUT my kext. Then you SHOULD have output from rear plug. If not, there is something with the dsdt... If that works, save your dsdt, and make my edits and add the kext.... you should then get both front and rear and ideally autoswitching when plugging headphones to front.

Originally Posted by elmangomez

To test, you should use the patched dsdt.aml (without my HDEF section first) and ABLN keyword 0x4f, and WITHOUT my kext. Then you SHOULD have output from rear plug. If not, there is something with the dsdt... If that works, save your dsdt, and make my edits and add the kext.... you should then get both front and rear and ideally autoswitching when plugging headphones to front.

Hello elmangmez,

I did test my system follwing your suggested step by step approach.

Starting with patched dsdt and ABLN (no hdef nor ktext) and... audio appeared in system preferences: once selected the proper output it worked!

The other steps, instead don't give the expected result:

- ktext addition, disable sound (audio board doesn't showup in system preferences)
- hdef addition in dsdt, not only doesn't make sound work, but also disable my keybard.

Now I'm starting to think that there is something wrong with my dsdt... Am I wrong?

Would it be appropriate if I post my dsdt here together with ioreg dump (got from linux live cd)?

Thanks,
Blackdir

Originally Posted by blackdir

Hello elmangmez,

I did test my system follwing your suggested step by step approach.

Starting with patched dsdt and ABLN (no hdef nor ktext) and... audio appeared in system preferences: once selected the proper output it worked!

The other steps, instead don't give the expected result:

- ktext addition, disable sound (audio board doesn't showup in system preferences)
- hdef addition in dsdt, not only doesn't make sound work, but also disable my keybard.

Now I'm starting to think that there is something wrong with my dsdt... Am I wrong?

Would it be appropriate if I post my dsdt here together with ioreg dump (got from linux live cd)?

Thanks,
Blackdir

I made you a DSDT with Sound enabled. I uses the configuration from Elmangomez, so you will need the LegacyHDA.kext too. Do not forget to rename the DSDT_sound.aml into DSDT.aml and put it into the Chameleon Extra folder. The kernel extension into Extra/Extension.

Originally Posted by AsereBLN

I made you a DSDT with Sound enabled. I uses the configuration from Elmangomez, so you will need the LegacyHDA.kext too. Do not forget to rename the DSDT_sound.aml into DSDT.aml and put it into the Chameleon Extra folder. The kernel extension into Extra/Extension.

Hello AsereBNL,

thank you very much for supporting me once again.
I tried the DSDT with sound you provided me (combined with the LegacyHDA.ktext), but with no luck: no device is available for output in system preferences (see attached screenshot).

From last time I dumped dsdt (the one I posted in your DSDT thread), I removed the Netgear GA311 card and disabled from bios both floppy and serial port (as I don't use them).
Would it be possible that my system modified some IRQs and now it looks different (and incompatible) with the DSDT you prepared at that time?

Please forgive this newbie if I'm saying something technically impossible!

Anyhow I attach a new dsdt dump done from opensuse (booted bypassing chameleon via F12)... maybe you are patient enough to have a look at it once again.

thanks again,
blackdir

Hello everyone,

as AsereBLN didn't answer to my last post, I though that it could be something wrong on my system and I did some investigations to further debug.

I though that it my be necessary to rebuild Extensions.mkext - an activity that I didn't do in my previous replacements of dsdt files ( I did it only once when I installed SL). For this reason I run the proper command (sudo kextcache -v 1 -t -m ). Below what I get.

When DSDT with sound, but no LegacyHDA are in place:

Code:

fakesmc.kext - no dependency found for com.apple.kpi.unsupported.
fakesmc.kext - no dependency found for com.apple.iokit.IOACPIFamily.
fakesmc.kext - no dependency found for com.apple.kpi.libkern.
fakesmc.kext - no dependency found for com.apple.kpi.iokit.
fakesmc.kext is missing dependencies (including anyway; dependencies may be available from elsewhere)
Dependency Resolution Failures: 
    No kexts found for these libraries: 
        com.apple.kpi.unsupported
        com.apple.iokit.IOACPIFamily
        com.apple.kpi.libkern
        com.apple.kpi.iokit

NullCPUPowerManagement.kext - no dependency found for com.apple.kpi.unsupported.
NullCPUPowerManagement.kext - no dependency found for com.apple.kpi.iokit.
NullCPUPowerManagement.kext - no dependency found for com.apple.kpi.libkern.
NullCPUPowerManagement.kext is missing dependencies (including anyway; dependencies may be available from elsewhere)
Warnings: 
    Personality matches on IOResources but IOMatchCategory is missing or not equal to its IOClass; driver may be blocked from matching or may block others: 
        IntelCPUPowerManagement

Dependency Resolution Failures: 
    No kexts found for these libraries: 
        com.apple.kpi.unsupported
        com.apple.kpi.iokit
        com.apple.kpi.libkern

OpenHaltRestart.kext - no dependency found for com.apple.kpi.iokit.
OpenHaltRestart.kext - no dependency found for com.apple.kpi.libkern.
OpenHaltRestart.kext is missing dependencies (including anyway; dependencies may be available from elsewhere)
Dependency Resolution Failures: 
    No kexts found for these libraries: 
        com.apple.kpi.iokit
        com.apple.kpi.libkern

PlatformUUID.kext - no dependency found for com.apple.kpi.iokit.
PlatformUUID.kext - no dependency found for com.apple.kpi.libkern.
PlatformUUID.kext is missing dependencies (including anyway; dependencies may be available from elsewhere)
Dependency Resolution Failures: 
    No kexts found for these libraries: 
        com.apple.kpi.iokit
        com.apple.kpi.libkern

SleepEnabler.kext - no dependency found for com.apple.kpi.unsupported.
SleepEnabler.kext - no dependency found for com.apple.kpi.iokit.
SleepEnabler.kext - no dependency found for com.apple.kpi.libkern.
SleepEnabler.kext is missing dependencies (including anyway; dependencies may be available from elsewhere)
Dependency Resolution Failures: 
    No kexts found for these libraries: 
        com.apple.kpi.unsupported
        com.apple.kpi.iokit
        com.apple.kpi.libkern

fakesmc.kext - no dependency found for com.apple.kpi.unsupported.
fakesmc.kext - no dependency found for com.apple.iokit.IOACPIFamily.
fakesmc.kext - no dependency found for com.apple.kpi.libkern.
fakesmc.kext - no dependency found for com.apple.kpi.iokit.
fakesmc.kext is missing dependencies (including anyway; dependencies may be available from elsewhere)
Dependency Resolution Failures: 
    No kexts found for these libraries: 
        com.apple.kpi.unsupported
        com.apple.iokit.IOACPIFamily
        com.apple.kpi.libkern
        com.apple.kpi.iokit

NullCPUPowerManagement.kext - no dependency found for com.apple.kpi.unsupported.
NullCPUPowerManagement.kext - no dependency found for com.apple.kpi.iokit.
NullCPUPowerManagement.kext - no dependency found for com.apple.kpi.libkern.
NullCPUPowerManagement.kext is missing dependencies (including anyway; dependencies may be available from elsewhere)
Warnings: 
    Personality matches on IOResources but IOMatchCategory is missing or not equal to its IOClass; driver may be blocked from matching or may block others: 
        IntelCPUPowerManagement

Dependency Resolution Failures: 
    No kexts found for these libraries: 
        com.apple.kpi.unsupported
        com.apple.kpi.iokit
        com.apple.kpi.libkern

OpenHaltRestart.kext - no dependency found for com.apple.kpi.iokit.
OpenHaltRestart.kext - no dependency found for com.apple.kpi.libkern.
OpenHaltRestart.kext is missing dependencies (including anyway; dependencies may be available from elsewhere)
Dependency Resolution Failures: 
    No kexts found for these libraries: 
        com.apple.kpi.iokit
        com.apple.kpi.libkern

PlatformUUID.kext - no dependency found for com.apple.kpi.iokit.
PlatformUUID.kext - no dependency found for com.apple.kpi.libkern.
PlatformUUID.kext is missing dependencies (including anyway; dependencies may be available from elsewhere)
Dependency Resolution Failures: 
    No kexts found for these libraries: 
        com.apple.kpi.iokit
        com.apple.kpi.libkern

SleepEnabler.kext - no dependency found for com.apple.kpi.unsupported.
SleepEnabler.kext - no dependency found for com.apple.kpi.iokit.
SleepEnabler.kext - no dependency found for com.apple.kpi.libkern.
SleepEnabler.kext is missing dependencies (including anyway; dependencies may be available from elsewhere)
Dependency Resolution Failures: 
    No kexts found for these libraries: 
        com.apple.kpi.unsupported
        com.apple.kpi.iokit
        com.apple.kpi.libkern

Source directory has changed since starting; not saving cache file /Extra/Extensions/Extensions.mkext.

Is it correct that I cannot rebuild Extensions.mkext in this situation?

thanks,
blackdir

Originally Posted by blackdir

Hello AsereBNL,

thank you very much for supporting me once again.
I tried the DSDT with sound you provided me (combined with the LegacyHDA.ktext), but with no luck: no device is available for output in system preferences (see attached screenshot).

From last time I dumped dsdt (the one I posted in your DSDT thread), I removed the Netgear GA311 card and disabled from bios both floppy and serial port (as I don't use them).
Would it be possible that my system modified some IRQs and now it looks different (and incompatible) with the DSDT you prepared at that time?

Please forgive this newbie if I'm saying something technically impossible!

Anyhow I attach a new dsdt dump done from opensuse (booted bypassing chameleon via F12)... maybe you are patient enough to have a look at it once again.

thanks again,
blackdir

The DSDT from the attachment and the one I used for patched are binary equal. So it must be another problem. Do you have enabled the Azalia Codec in the BIOS (auto)? Do you see a audio device in the IORegistry or in System Profiler?