[Q] Trying to get utility to auto-disable Wifi without wakelock on CM7

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Okay, I've been trying to diagnose a somewhat annoying issue. I've been using a fairly simple set of conditions in the Llama utility to automatically disable Wifi when the screen turns off in CM7 to prevent a wakelock condition and reduce battery drain.

So I activate wifi, I reset the log in CPU Spy, and I lock the phone disabling the screen. When I reactivate the phone and check CPU Spy, wifi was definately off but the phone was never in Deep Sleep, so something was holding the wakelock I guess. I repeat the experiment with no changes and Llama still running, but this time I manually disable wifi before locking the screen. This time the phone immediately goes into Deep Sleep according to CPU Spy-- it works perfectly.

So what is the difference between Llama autodisabling and manually disabling wifi that leaves a wakelock active? I've repeated this experiment like ten times last night, and it isn't making much sense to me.

Thanks,

Gnat

I would love an answer to this as well. I can add that with juice defender ultimate the same thing happens. It will disable the wifi but the wakelock stays active. I have tried several settings and reboots and tests and the only thing that would get my phone to deep sleep was disabling JD.

Originally Posted by mikel81

I would love an answer to this as well. I can add that with juice defender ultimate the same thing happens. It will disable the wifi but the wakelock stays active. I have tried several settings and reboots and tests and the only thing that would get my phone to deep sleep was disabling JD.

I can't tell whether this is the exact same, because you make it sound like JD has the wakelock. In my case, Llama is running in both tests, the only difference is whether Llama turns off Wifi or I manually toggle it-- manual toggling puts it into deep sleep even with Llama running.

On the general battery issues on Triumph, one of the more helpful discussions I've seen is this one here-- http://androidforums.com/triumph-all...provement.html. In it a quote from Tickerguy blesses the JuiceDefender approach to throttling data use for battery savings, but I don't think he had done any analysis regarding wakelocks. BTW, I reverted to stock today, and I am finding the exact same problems as CM7-- wifi imposes a wakelock, and Llama can't shut down wifi automatically without the wakelock persisting. I have to manually toggle wifi off before screen off before the wakelock is gone.

Regards,

Gnat

Originally Posted by gnatd

I can't tell whether this is the exact same, because you make it sound like JD has the wakelock. In my case, Llama is running in both tests, the only difference is whether Llama turns off Wifi or I manually toggle it-- manual toggling puts it into deep sleep even with Llama running.

Sorry; the wakelock is WLAN. It is almost always active if JD is toggling wifi. I hadn't tried disabling wifi manually but leaving JD active yet. I just tested that and got deep sleep immediately. So it must have something to do with how it disables wifi isn't releasing the wakelock.

You know, after switching back to stock from CM7 I'm really not sure I'm not happier. With CM7 I was getting worse battery performance, which led me to start obsessing about wakelocks and deep sleep. Now that I am back on stock, I do the same analysis and see that I have the same problems with wakelocks and deep sleep-- but the battery performance is better so it's not that big a deal. I'm sure that there are things I could do to make CM7 have better battery performance-- but I wasn't enjoying the process and wasn't finding answers, so why bother?

It's like power management programs. I ran Green Power for a long time, and had some glitchy problems with being unable to get wifi to turn on even though it wasn't supposed to be managed while the screen was on. Then I disabled it, and you know what... my battery life was good enough to get me through the day. Froyo is good enough to get me through the day.

The wakelock was put in there on purpose to prevent the phone from hanging when WiFi was on and the phone went to sleep. I use my power widget to turn off WiFi before I turned off the screen unless I'm actually using it.
You could try and build it to see if removing the wakelock is still necessary. If you need help on that side, just post and I'll help. It's not hard, really.