Re: Accuracy of the power meter?
On Tue, May 08, 2007 at 08:16:40AM -0400, Theodore Tso wrote: On Tue, May 08, 2007 at 01:39:35PM +0200, Ralph Angenendt wrote: Lucky you. When I'm connected to my AP at home (The white fonera AP), I'll get 1.5 days max, even if I don't use the device and just omweather does periodic updates. Omeweather turned out to be it, it looks like. I need to do some more tests to conclusively prove it, but it looks like I had set omweather (version 0.17.2) to never update, and my guess that set the interval time to 0, and that seems to have triggered some continue loop. Sounds like a bug. Report it. -- hendrik ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users
Re: Accuracy of the power meter?
ext Mikhail Sobolev [EMAIL PROTECTED] writes: One possibility is if you use RD mode or some other [non-default] options changed with flasher application. In this case power management would not be able to deliver the promised time. RD-mode itself shouldn't affect power consumption, but for example serial-console RD flag will. -- Kalle Valo ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users
Re: Accuracy of the power meter?
Theodore Ts'o [EMAIL PROTECTED] writes: I've been noticing that I don't get anywhere near the promised 10 days idle battery life on my N800. With bluetooth and the wireless turned off (offline mode), and with the display off and keys/touchscreen locked, I'm getting at best 8-10 hours of idle time before the battery is completely drained. 8-10 hours of standby time implies that the MPU cannot sleep. Has anyone seen anything like this or any thoughts about why I might be seeing this? Usually there are two cases, either serial-console RD flag is enabled or USB cable is connected. Both block MPU from sleeping (or going into retention or whatever it is called). If it's not that, I would guess that it's some badly behaving application. -- Kalle Valo ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users
Re: Accuracy of the power meter?
Theodore Ts'o wrote: The second is that I'm running off a 2gig flash card as my root filesystem instead of the internal flash, per the instructions given in the Maemo wiki. That's a distinct possibility, although I don't see how the flash card could be pulling so much current when the system is an idle state. I'm running off a SD card too and with bluetooth on and wi-fi connected to AP it lasts couple of days. Has anyone seen anything like this or any thoughts about why I might be seeing this? Apart from something you installed (some home screen or status bar applet?) there is this metalayer-crawler that can get stuck when indexing card, there is also getty respawning bug https://maemo.org/bugzilla/show_bug.cgi?id=1222 but still it is probably something else as the first one probably drains battery faster and the getty bug slower. Nothing suspicious in kernel log? Frantisek ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users
Re: Accuracy of the power meter?
Frantisek Dufka wrote: Theodore Ts'o wrote: The second is that I'm running off a 2gig flash card as my root filesystem instead of the internal flash, per the instructions given in the Maemo wiki. That's a distinct possibility, although I don't see how the flash card could be pulling so much current when the system is an idle state. I'm running off a SD card too and with bluetooth on and wi-fi connected to AP it lasts couple of days. Lucky you. When I'm connected to my AP at home (The white fonera AP), I'll get 1.5 days max, even if I don't use the device and just omweather does periodic updates. Ralph pgp9vS37AbcSE.pgp Description: PGP signature ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users
Re: Accuracy of the power meter?
Ralph Angenendt wrote: I'm running off a SD card too and with bluetooth on and wi-fi connected to AP it lasts couple of days. Lucky you. When I'm connected to my AP at home (The white fonera AP), I'll get 1.5 days max, even if I don't use the device and just omweather does periodic updates. How often omweather updates data? Did you try with omweather disabled? Not sure what is default value now but you may try to change PSM timeout http://www.gossamer-threads.com/lists/maemo/users/18057#18057 I am now at 100ms and did not notice any disadvantages (Asus wl500gx with Oleg's firmware http://oleg.wl500g.info/). Also I have both N770 and N800 so one of them sits idle while I am using the other one. Mostly the idle one is N800. N770 has hardcover so I take it everywhere and then just continue where I left even when at home. Frantisek ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users
Re: Accuracy of the power meter?
On Tue, May 08, 2007 at 01:39:35PM +0200, Ralph Angenendt wrote: Lucky you. When I'm connected to my AP at home (The white fonera AP), I'll get 1.5 days max, even if I don't use the device and just omweather does periodic updates. Omeweather turned out to be it, it looks like. I need to do some more tests to conclusively prove it, but it looks like I had set omweather (version 0.17.2) to never update, and my guess that set the interval time to 0, and that seems to have triggered some continue loop. Setting the interval time to 4 hours seems to have extended my battery life. - Ted ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users
Re: Accuracy of the power meter?
On 5/8/07, Ralph Angenendt [EMAIL PROTECTED] wrote: Eero Tamminen wrote: Omeweather turned out to be it, it looks like. I need to do some more tests to conclusively prove it, but it looks like I had set omweather (version 0.17.2) to never update, and my guess that set the interval time to 0, and that seems to have triggered some continue loop. Setting the interval time to 4 hours seems to have extended my battery life. AFAIK it can also make desktop take all the memory in the device within day or two and make some of the other applets not to work. That seems to have been fixed in one of the last updates to omweather. I haven't seen massive memory consumption from omweather during the last weeks. Good news ... maybe I will try using it again as it was causing spontaneous rebooting on my N800 when I had the applet enabled. As soon as I turned it off, my N800 has been rock solid. I think that I had it never to update too so that quirk that Theodore pointed out is illuminating. Hopefully that gets fixed too. /Mike ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users
Re: Accuracy of the power meter?
Frantisek Dufka wrote: How often omweather updates data? Did you try with omweather disabled? It is disabled, as I just found out - I needed the Yellow Notes home applet and had no place for omweather anymore :) Not sure what is default value now but you may try to change PSM timeout http://www.gossamer-threads.com/lists/maemo/users/18057#18057 I am now at 100ms and did not notice any disadvantages (Asus wl500gx with Oleg's firmware http://oleg.wl500g.info/). Thanks, will try that. Completely forgot about it. Cheers, Ralph pgpbDAB78fXDA.pgp Description: PGP signature ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users
Accuracy of the power meter?
I've been noticing that I don't get anywhere near the promised 10 days idle battery life on my N800. With bluetooth and the wireless turned off (offline mode), and with the display off and keys/touchscreen locked, I'm getting at best 8-10 hours of idle time before the battery is completely drained. I have two theories why at this point. The first is that the battery has gone south, even though it I've only had the N800 for about a month or os. The second is that I'm running off a 2gig flash card as my root filesystem instead of the internal flash, per the instructions given in the Maemo wiki. That's a distinct possibility, although I don't see how the flash card could be pulling so much current when the system is an idle state. Has anyone seen anything like this or any thoughts about why I might be seeing this? Thanks, - Ted ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users
Re: Accuracy of the power meter?
I've been noticing that I don't get anywhere near the promised 10 days idle battery life on my N800. With bluetooth and the wireless turned off (offline mode), and with the display off and keys/touchscreen locked, I'm getting at best 8-10 hours of idle time before the battery is completely drained. That's definitely weird. I don't get 10 days between charges, but then my N800 is never idle for 10 days at a time. I commonly run 3 days between charges, though, and I'm a fairly active user. I have two theories why at this point. The first is that the battery has gone south, even though it I've only had the N800 for about a month or os. The second is that I'm running off a 2gig flash card as my root filesystem instead of the internal flash, per the instructions given in the Maemo wiki. I don't do this. If you don't get a more helpful response, I would run with a stock fs and no applications installed for a day (no fun, but an important troubleshooting step if you're not sure where the problem lies). If you still have low standby life in offline/screenlocked mode then you definitely have hardware issues. If not, then you can start introducing variables in a controlled way until you pin down the rogue config/app that's killing your battery life. Please report back so others can learn as well. Thanks, Mike ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users
Re: Accuracy of the power meter?
On Mon, May 07, 2007 at 06:56:44PM -0400, Theodore Ts'o wrote: I've been noticing that I don't get anywhere near the promised 10 days idle battery life on my N800. With bluetooth and the wireless turned off (offline mode), and with the display off and keys/touchscreen locked, I'm getting at best 8-10 hours of idle time before the battery is completely drained. One possibility is if you use RD mode or some other [non-default] options changed with flasher application. In this case power management would not be able to deliver the promised time. -- Misha signature.asc Description: Digital signature ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users
Re: Accuracy of the power meter?
Hi, On Mon, 2007-05-07 at 23:25 -0400, ext Mike Lococo wrote: I've been noticing that I don't get anywhere near the promised 10 days idle battery life on my N800. With bluetooth and the wireless turned off (offline mode), and with the display off and keys/touchscreen locked, I'm getting at best 8-10 hours of idle time before the battery is completely drained. That's definitely weird. I don't get 10 days between charges, but then my N800 is never idle for 10 days at a time. I commonly run 3 days between charges, though, and I'm a fairly active user. Yes, apparently it's somehow problematic to convey the difference between idle and almost idle. To give a rough idea, the power used by the device while being running can be _at_least_ 10 times higher, with peaks in the order of a couple of hundred times. So it's very hard if possible at all to define what is your expected runtime apart from few selected use cases that are using for marketing the device and that we refer to when measuring the power performance. Of course our use-cases are tailored to cover most of the common uses, but it's easy for a power user to come up with some combinatioin of software/use that doesn't allow for proper power saving. I have two theories why at this point. The first is that the battery has gone south, even though it I've only had the N800 for about a month or os. I have seen it happening somehow only to 3 years old batteries from the early 770 era. But that's only my personal experience. The second is that I'm running off a 2gig flash card as my root filesystem instead of the internal flash, per the instructions given in the Maemo wiki. I don't do this. If you don't get a more helpful response, I would run with a stock fs and no applications installed for a day (no fun, but an important troubleshooting step if you're not sure where the problem lies). MMC / SD shouldn't be an issue. Actually the throughput could/should be higher because jffs2 does dynamic compression/decompression while the SD doesn't. Of course there could be a bug in the driver, but history has usually shown that it's some application/service/daemon that is run too often or that does busy loop or similar nasty things. If you still have low standby life in offline/screenlocked mode then you definitely have hardware issues. If not, then you can start introducing variables in a controlled way until you pin down the rogue config/app that's killing your battery life. Please report back so others can learn as well. Yes, that's the only certain way. My advice is to start removing first those apps that are likely to introduce periodic activity. -- Cheers, Igor Igor Stoppa [EMAIL PROTECTED] (Nokia Multimedia - CP - OSSO / Helsinki, Finland) ___ maemo-users mailing list maemo-users@maemo.org https://maemo.org/mailman/listinfo/maemo-users
