[Guide] How to patch DSDT for working battery status

[RehabMan]

How to patch DSDT for working battery status

Hey RehabMan Here is a copy of my dsdt untouched Thanks again for this amazing guide

The only problem I found was in this line in _BTP:

                                Store (Local0, ^^PCI0.LPCB.H_EC.BTPC)

Needs this patch:

into method label _BTP code_regex Store\s\((.*),\s\^\^PCI0\.LPCB\.H_EC\.BTPC\) replace_matched
begin 
Store(ShiftRight(%1,8), ^^PCI0.LPCB.H_EC.BPC1) Store(%1, ^^PCI0.LPCB.H_EC.BPC1)
end;

The other patch related to _BTP is not effective and so I removed it.

 

[daniel86bm]

How to patch DSDT for working battery status

The only problem I found was in this line in _BTP:

                                Store (Local0, ^^PCI0.LPCB.H_EC.BTPC)

Needs this patch:

into method label _BTP code_regex Store\s\((.*),\s\^\^PCI0\.LPCB\.H_EC\.BTPC\) replace_matched
begin 
Store(ShiftRight(%1,8), ^^PCI0.LPCB.H_EC.BPC1) Store(%1, ^^PCI0.LPCB.H_EC.BPC1)
end;

The other patch related to _BTP is not effective and so I removed it.

Thanks man you are the best, honestly since I was working at the time I was uploading the dsdt i didn't have time to tell you that for that particular patch I had to manually shift the values in the line to make it work, this is a new universe for me so you can imagine I'm trying to learn as I go Thanks again I will update what I have.

 

[psy_22]

How to patch DSDT for working battery status

Hello RehabMan , thanks for all useful info!

I attach my patched dsdt, it's from lenovo x220 bios 1.39 and it's different from that you have on repository , it works on maverics with your battery 1.40 but with 1.50 it doesn't update Power Source from Power adapter to battery and system preferences - energy saver says Current battery charge : 0 ,
if you want take a look at it and put it with your other patches for x220 , thank you


12/17/13 13:25:49.000 kernel[0]: ACPIBatteryManager: Version 1.50 starting.
12/17/13 13:25:49.000 kernel[0]: ACPIBatteryManager: Using ACPI regular battery information method _BIF
12/17/13 13:25:55.000 kernel[0]: ACPIBatteryManager: Error: Overall Read Timeout Expired (0)

http://www3.zippyshare.com/v/81995371/file.html


*update edit : i put these fixes and now the power source updates but energy saver says Current battery charge : 0 and doesn't calculate remaining time (0:00 remaining)

#system_Mutext.txt
# Power fix - cause AppleACPIACAdapter to be loaded


*from ioreg

| +-o ADP1 <class IOACPIPlatformDevice, id 0x10000015d, registered, matche$
| | +-o rehab_ACPIACAdapter <class rehab_ACPIACAdapter, id 0x1000001ca, !r$

 

[RehabMan]

How to patch DSDT for working battery status

Hello RehabMan , thanks for all useful info!

I attach my patched dsdt, it's from lenovo x220 bios 1.39 and it's different from that you have on repository , it works on maverics with your battery 1.40 but with 1.50 it doesn't update Power Source from Power adapter to battery and system preferences - energy saver says Current battery charge : 0 ,
if you want take a look at it and put it with your other patches for x220 , thank you


12/17/13 13:25:49.000 kernel[0]: ACPIBatteryManager: Version 1.50 starting.
12/17/13 13:25:49.000 kernel[0]: ACPIBatteryManager: Using ACPI regular battery information method _BIF
12/17/13 13:25:55.000 kernel[0]: ACPIBatteryManager: Error: Overall Read Timeout Expired (0)

http://www3.zippyshare.com/v/81995371/file.html


*update edit : i put these fixes and now the power source updates but energy saver says Current battery charge : 0 and doesn't calculate remaining time (0:00 remaining)

#system_Mutext.txt
# Power fix - cause AppleACPIACAdapter to be loaded


*from ioreg

| +-o ADP1 <class IOACPIPlatformDevice, id 0x10000015d, registered, matche$
| | +-o rehab_ACPIACAdapter <class rehab_ACPIACAdapter, id 0x1000001ca, !r$

Your DSDT has Mutex objects non-zero SyncLevel. Use "Fix Mutex with non-Zero SyncLevel" DSDT patch from the laptop repo.

 

[psy_22]

How to patch DSDT for working battery status

i did apply mutex and power : Name (_PRW, Package() { 0x18, 0x03 })

it calculates the remaining time and the change from ac/battery works but not every time and when it works the change is sometimes fast , sometimes slow , percentage works but still have this error in console :

ACPIBatteryManager: Error: Overall Read Timeout Expired (0)
and
energy saver says Current battery charge : 0

no problem with the 1.40, everything worked as it should, anyway i'll change back to 1.40 for now

 

[RehabMan]

How to patch DSDT for working battery status

i did apply mutex and power : Name (_PRW, Package() { 0x18, 0x03 })

Not in the DSDT you provided.

it calculates the remaining time and the change from ac/battery works but not every time and when it works the change is sometimes fast , sometimes slow , percentage works but still have this error in console :

ACPIBatteryManager: Error: Overall Read Timeout Expired (0)
and
energy saver says Current battery charge : 0

no problem with the 1.40, everything worked as it should, anyway i'll change back to 1.40 for now

Probably caused by multiple active battery objects, but a second one that doesn't work. You could probably disable the second battery with:

into method label _STA parent_label BAT1 replace_content begin Return(0) end;

 

[psy_22]

How to patch DSDT for working battery status

alright! it works now with your multiple active battery objects fix
here is my new dsdt : http://www24.zippyshare.com/v/82117974/file.html

great

 

[psy_22]

How to patch DSDT for working battery status

RehabMan i have a problem with Amperage (mA) reading in System report - power
it reads Amperage (mA): -2651 when i'm on battery and 0 when i'm on power adapter.

i've tried "UseExtendedBatteryInformationMethod" to false
and "UseExtendedBatteryInformationMethod" to false but nothing changed.

 

[RehabMan]

How to patch DSDT for working battery status

RehabMan i have a problem with Amperage (mA) reading in System report - power
it reads Amperage (mA): -2651 when i'm on battery and 0 when i'm on power adapter.

That is the expected behavior. When you're on the AC adapter, you're not drawing any power (amperage) from the battery.

 

[psy_22]

How to patch DSDT for working battery status

ok understandable