IRC log of #maemo-ssu for Friday, 2013-07-26

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SiceloHAM can choose between versions?00:14
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sixwheeledbeastdistribution section?00:23
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DocScrutinizer05ham can choose between packages. packages in turn can provide identical capabilities and they afaik also can conflict with each other02:13
DocScrutinizer05but, for example mediaplayer: simply remove mediaplayer from mp-fremantle-pr metapackage and all of a sudden you're free to uninstall or replace it02:15
DocScrutinizer05make it provide "play-media" and mp-fremantle-pr resp mp-community-pr pulls in the capability "play-media" and you're free to install any alternative that also provides "play-media" and thus uninstalls the stock media player02:17
DocScrutinizer05for this to work you need a ultrthin wrapper around the stock media player, a metapackage called nokia-mediaplayer that simply provides capability "play-media" and depends on stock mediaplayer02:18
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kerioDocScrutinizer05: we can just "update" the stock mediaplayer in our repo07:16
keriodon't we have permission to redistribute (c)Nokia packages?07:16
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DocScrutinizer05yes, we have09:32
DocScrutinizer05we don't have control over the nokia repos though, afaik09:33
DocScrutinizer05we probably could repackage and ship via CSSU repo the stock player09:34
DocScrutinizer05but just for handling the dependencies that feels like overkill. Maybe because I had no coffee yet09:34
kerioDocScrutinizer05: "just for handling the dependencies"09:40
keriowhich is about 100% of what repo maintainership is about09:40
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kerioDocScrutinizer05: another good thing to do would be to rerelease packages with fixed dependencies10:45
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PaliTADA: It looks like we know what causing PA problems on some n900 devices11:05
Palipatch which adding nokia PA compatilbity with normal PA.11:05
Palicssu testers, look: http://talk.maemo.org/showthread.php?p=1362206#post136220611:06
kerio:o11:06
Palinow need to understand why it is problem only on some n900 devices11:07
Paliand need to find another solution for compatibility with upstream non-nokia-hacked PA11:07
kerioPali: this reminds me11:07
keriooften, when i plug the charger in, i get the message regarding the current not being sufficient to charge11:08
keriobut it actually is11:08
Palikerio: update hald-addon-bme to last version11:08
kerioand the charge goes normally11:08
Paliand update also battery plugin11:08
keriok11:08
kerionot now tho, i'm on the bus11:08
PaliI pushed more patches to both11:08
keriowith no recent backups11:09
kerioyay11:09
kerioi liek patches11:09
Palibattery applet is in cssu-devel11:09
kerioit's just an ui issue, yes?11:09
Palino only11:09
Palialso in hald-addon-bme was some problems11:09
keriooh, k11:09
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kerioalright11:10
Palibecause bq27200 chip do not report battery charging immediately, I added small hack to force hald-addon-bme to report battery charging for 10s after charger cable is attached11:11
Pali10s should be enought time to report if charger is can really charge battery or not11:11
kerioPali: do you reckon that it's possible to add a gconf key to force a certain value for the battery capacity?11:11
Palithere are no gconf keys for hald-addon-bme yet...11:12
keriooh, is it just the battery applet?11:12
kerioit would still work11:12
Paliyes, only battery applet has gconf key for using design capacity or not11:12
Palinothing more11:13
keriosomething like "override_battery_capacity"11:13
kerioan int, when present and different from -1 should override other sources of battery capacity11:13
kerioin mAh, i suppose11:13
kerioDocScrutinizer05: why do we measure battery capacity in mAh and not in coulombs?11:14
DocScrutinizer05because nobody knows how to spell Coulomb11:49
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keriolol15:51
kerioi mean, 1 C = 0.2(7)mAh15:52
kerioso you'd just have to divide things by 315:52
keriopretty much15:52
kerioby 3.6, in fact15:53
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DocScrutinizer05if you consider better units, then use Joule alias Ws18:31
DocScrutinizer05since THAT owuld really be an improvement over that basically fundamentally flawed resp meaningless mAh that don't consider the VOLTAGE which will change during discharge18:32
DocScrutinizer05s/ow(wo/18:32
DocScrutinizer05meh18:32
DocScrutinizer05btw 1C=1As18:34
DocScrutinizer05=1000mAs = 1000/3600mAh18:35
DocScrutinizer05not even Physicians use Coulomb18:36
DocScrutinizer05btw if you wonder: the unit of that 3600 above is h/s18:38
DocScrutinizer05err s/h18:38
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DocScrutinizer05= 60m/h * 60s/m18:39
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sixwheeledbeastSo the key is breaking up as much of the mammoth metapackage as possible. How easy is this to implement?19:05
sixwheeledbeastAs for units of energy....19:05
sixwheeledbeastjoules are generally not used and coulombs are a larger number, Ah was invented as a lazy shorthand.19:09
sixwheeledbeastnot used for batteries as a unit of measure anyway19:09
sixwheeledbeast1A over 60 seconds is 60 coulombs, therefore in an hour 3600 coulombs have been used.19:12
sixwheeledbeastJoules or watt-seconds would be the accurate measure I agree, but it seems mAs/mAh/Ah are deemed accurate enough for us and easier to caluculate.19:21
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DocScrutinizer05(MP) pretty easy19:54
DocScrutinizer05(easier to..) measure. bq27200 though has also Ws iirc19:55
DocScrutinizer05for system energy consumption (aka power) it's a simple conversion from A to W, since voltage is stabilized and known. The whole point is with battery, where you convert to those stabilized system voltages via a step-converter (not an LDO). Such step converter qould e.g eat 350mA@4.2V battery, or 420mA@3.5V, for feeding the identical system load19:59
DocScrutinizer05so obviously mAh is a bit nonsensical in that case. mWh though was way nicer since the mW figure is constant for 350*4.2 and 420*3.520:00
DocScrutinizer050x23 - 0x22:  3021   SAE Available Energy High - Low Byte  (from bq27k-detail2)20:03
sixwheeledbeastIC. So is there a plan to take a pickaxe to mp soon?20:10
DocScrutinizer05I always push that but for unclear (to me) reasons the chief maintainers are reluctant20:12
DocScrutinizer05sure, as soon as you nuke MP completely, you need to make sure *all* your inter-package dependencies are comprehensive, complete and correct20:13
DocScrutinizer05and it seems most devels are lazy to take care about that detail of their package20:14
DocScrutinizer05and THAT part is not as easy, for the distro maintainers. Particularly when it's needed for dozens or hundreds of packages20:16
sixwheeledbeastI suppose it's a minefield of a job, but when done would provide huge flexibility. We need to look at this method of replacing these pkgs for FOSS alternatives. They have benefits and will be welcomed by the community. Having stock and FOSS-alt side-by-side is a pointless waste, other than for testing purposes.20:24
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kerioDocScrutinizer05: why don't we use mWhs then?20:49
DocScrutinizer05side by side? you mean concurrently installed? nah, that's actually pointless20:50
keriowhy don't we just make nicocam lighter so it doesn't have to be preloaded?20:52
sixwheeledbeast"side by side" as in both stock and FOSS-alt installed at same time. Like we have now for OMP etc...20:53
DocScrutinizer05yes, that's an alternative for some apps, while it's a nogo for others20:56
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