Diablo Update Fixes Battery Drain? - Page 9 - maemo.org

sakamoto | # 81 | 2008-09-23, 01:59 | Report

I've installed the shroot but still can't run the iwconfig command.

error : /bin/sh: iwconfig: not found

do i need to go to particular folder to run this command?

albright | # 82 | 2008-09-23, 19:52 | Report

Sorry if this is too simple minded, but you do
have wireless tools package installed?

sakamoto | # 83 | 2008-09-24, 01:28 | Report

now I understand why, Thanks!

I will go to install the wireless-tools package....

davidgro | # 84 | 2008-09-29, 22:33 | Report

Originally Posted by Texrat View Post

Well, let's just say it's not happening to me anymore... but I have not investigated the issues behind it (nor will I, sorry) and sooner or later there will be another Diablo update.

Now that there is another Diablo update is anyone planning to test battery life with it?
(I basically stopped using my tablet because of battery life problems which also may have caused corrupted files on my boot-from-card when it didn't shut down right.

And I'm waiting to update my own tablet until I get around to backing up stuff for selective restoring after I reflash everything - including the card).

scg | # 85 | 2008-09-30, 05:47 | Report

Hi,

I did install the recent SSU and the occassional error with wlan0 switching into power management off instead of shutting down is still present (maybe someone - me? - should file a bug report ...).

However, since I started to look at dmesg or iwconfig output after manually disabling wifi and to manually set the power management option there was no other complete drain. As for the moment I can live with that. My guess would be some kind of race condition when shutting down wlan, hard to track down then.

Cheers

My previous guess, modest, does not seem to be the cause alone.

Last edited by scg; 2008-09-30 at 05:50.

burbie | # 86 | 2008-09-30, 21:15 | Report

See https://bugs.maemo.org/show_bug.cgi?id=3738

I filed that. I'm going to upgrade on this coming weekend and continue testing with my meter attached. Stay tuned.
/b.

albright | # 87 | 2008-10-06, 12:46 | Report

I installed the updated diablo v4.2008.36-5 and can
confirm it does not fix the problem that wifi disconnection
can leave the wifi chip on and thus drain the battery.

Also, using iwconfig to set power saving back on DOES NOT
fix the drain (I think because the tablet is actively seeking
to reconnect or something ...).

I've tried to build a monitor for this:

Code:

#!/bin/bash
x=`/usr/bin/iwconfig wlan0 | /usr/bin/awk 'NR==5{print $2}'`
if [[ $x = "Management:off" ]]; then
sudo /sbin/rmmod cx3110x
sleep 30
sudo /sbin/insmod /mnt/initfs/lib/modules/2.6.21-omap1/cx3110x.ko
sleep 20
sudo /etc/init.d/wlancond restart
fi

I use cron to run this script every 10 minutes. Just restarting
wlancond doesn't (always) fix the problem, but removing
the module and waiting and then restarting wlancond does
seem to work reliably (though I have not tested it
extensively).

Anyone know a better way to reset networking from the
command line?

The Following User Says Thank You to albright For This Useful Post:
fabbro

Benson | # 88 | 2008-10-06, 16:10 | Report

Well, every once in a while (especially if I power-cycle my phone without disconnecting) icd2 goes berserk on me, and I just do a sudo /etc/init.d/icd2 restart; while you're not describing the same problem, you could try that in hopes the icd init code clears it up.

salomc | # 89 | 2008-10-08, 16:39 | Report

I have the same issue about battery drain. This morning I noticed that the process called "hildon-desktop" eats permanently about 5-15% of the processor, even with no apps running (I see this through load-applet). I have the last version of Diablo installed.

Has anyone noticed the same?

Last edited by salomc; 2008-10-10 at 17:29. Reason: even with no apps running

cybic | # 90 | 2008-10-10, 05:22 | Report

Originally Posted by salomc View Post

I have the same issue about battery drain. This morning I noticed that the process called "hildon-desktop" eats permanently about 5-15% of the processor (I see this through load-applet). I have the last version of Diablo installed.

Has anyone noticed the same?

Same here! Exactlly like you told - 5-10%, jumpping up and down! Battery time is much shorter now!