[SOLVED] MPB4,1/MBA 'wait status failed: c != 8' solved?

**kosumi68** · September 19th, 2008

UPDATE 12DEC2011: Since FEB2011, most Macbook models should work out of the box, without patching the kernel. If you experience problems or suspect your machine is different somehow, please read on.

UPDATE 28APR2010: For the latest applesmc, see the applesmc-dkms package in the Mactel PPA: https://wiki.ubuntu.com/MactelSupportTeam/PPA

If you have a Mac that is yet unsupported by applesmc, please reply to this post, gathering the information below.

* Determine your exact mac model

Code:

sudo dmidecode -s system-product-name

* Run the applesmc-test.sh script (found below in this post) to get a picture of the performance before the patch

Code:

./applesmc-test.sh

(you may need to do 'chmod +x ./applesmc-test.sh' before it runs)

* Run the scan-smc.sh script (found below in this post), and attach the output.

Code:

sudo ./scan-smc.sh > scan-smc-MODEL.txt

(you may need to do 'chmod +x ./scan-smc.sh' before it runs)

After some time, a reply with a new version of applesmc-dkms attached will appear. Then please run applesmc-test.sh again. Once satisfactory, the change will be incorporated in the Mactel PPA, and a patch sent upstream.

For more information, see http://bitmath.org/code/applesmc-dkms/

**cyberdork33** · September 19th, 2008

It might be helpful if there was a test app or something that could verify the functions. Do you know if there is one or maybe a procedure for testing with stuff that is available?

**cyberdork33** · September 19th, 2008

Have you seen any of this?
http://www.phoronix.com/scan.php?pag...item&px=NjcyOA

**kosumi68** · September 20th, 2008

Originally Posted by cyberdork33

Have you seen any of this?
http://www.phoronix.com/scan.php?pag...item&px=NjcyOA

Well, the patches referred to are from me, and today they made it to Andrew Morton's mm tree, so I guess I have seen it

Not this link though, thanks for the tip.

Cheers,
Henrik

**kosumi68** · September 20th, 2008

Originally Posted by cyberdork33

It might be helpful if there was a test app or something that could verify the functions. Do you know if there is one or maybe a procedure for testing with stuff that is available?

I did not fully understand what you mean here, but if you think of a script that checks the availability of accelerometer, backlight, leds, fans, temperatures etc, that could be quite handy. However, currently the testing is about whether this works at all for some machines, which is easily verified by the number of errors in dmesg from applesmc.

**cyberdork33** · September 20th, 2008

Originally Posted by kosumi68

Well, the patches referred to are from me, and today they made it to Andrew Morton's mm tree, so I guess I have seen it

Not this link though, thanks for the tip.

Cheers,
Henrik

Thought so

I thought you'd like to see your work on phoronix.

Originally Posted by kosumi68

I did not fully understand what you mean here, but if you think of a script that checks the availability of accelerometer, backlight, leds, fans, temperatures etc, that could be quite handy. However, currently the testing is about whether this works at all for some machines, which is easily verified by the number of errors in dmesg from applesmc.

Actually, I don't know of anything that uses the accelerometer... backlight should work with pommed, and the fan control files can be seen in the dev tree. You have a good point on the messages though.

**kosumi68** · September 20th, 2008

EDIT 28APR2010: see first post in thread for current script versions [old version deleted].

On request, here is a small script that can be run to test the performance of applesmc on your computer. Simply run it in a terminal as a normal user. Cheers!

**kosumi68** · September 21st, 2008

Binary for Intrepid running 2.6.27-3-generic on i386 available, see the first post.

**calebio** · November 7th, 2008

Originally Posted by kosumi68

On request, here is a small script that can be run to test the performance of applesmc on your computer. Simply run it in a terminal as a normal user. Cheers!

Here is the output of this script for my iMac6,1:

Code:

accelerometer: not present
fan:           present, readable, output: 600
light:         not present
leds:          not present
temperatures:  present,
 temperature:           readable, output: 129000
 temperature:           readable, output: 25500
 temperature:           readable, output: 50000
 temperature:           readable, output: 60750
 temperature:           readable, output: 50250
 temperature:           readable, output: 48500
 temperature:           not readable
 temperature:           readable, output: 41500
 temperature:           not readable
performance:   reading all temperatures
 fail frequency:        1.000
 reads per second:      13