IRC log of #maemo for Sunday, 2014-03-09

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CR0WJust wonder. I tried to write as root something to /sys/devices/platform/gpio-switch/proximity/state since it's writeable, but I get permission denied.00:21
ShadowJKyes, well, it's a physical input00:24
ShadowJKBut as it is gpio, general purpose input output00:24
ShadowJKyou could change it to output and then echo00:25
ShadowJKThat would make the cpu drive the pin to your desired state. while proximity sensor attempts to drive the pin to what it thinks is true00:26
ShadowJKOne of them will die, or both00:26
CR0WShadowJK: I see.00:27
ShadowJK(or alternatively, both survive, burning enormous amounts of power)00:28
CR0WShadowJK: the device connected to this (proximity sensor) is dead, and the kernel has set it's state to closed, and disable to 1. I'm thinking if I could make applications think it's in the opposite state w/o modyfing the kernel.00:29
ShadowJKProximity sensor is used by very few things00:30
CR0WBecause I'd rather have them think it reports there's nothing in proximity and lock the screen as needed.00:30
ShadowJKPersonally I'd either do LD_PRELOAD tricks to the affected apps, or hack kernel...00:30
CR0WShadowJK: it's used by the phone app, so I get screen locked when someone's calling and I have to unlock and then answer. This would be OK in my pocket, but it's happening when the phone lays onobscured on my desk.00:31
ShadowJKAs a new owner of a Jolla phone, I find your attention to detail amusing :D00:32
CR0WShadowJK: in either case, I would have to setup a dev envirioment to compile something.00:33
ShadowJKyeah :(00:34
CR0WShadowJK: not sure what does that have to do with Jolla. Anyway, I could simply flip .active_low in the kernel to the opposite, is that right?00:34
ShadowJKI would find the prxomity driver and make it return false all the tme00:35
ShadowJKbut flipping active_low sounds as fine a hack as any00:35
CR0WI don't know which file is that unfortunatelly. I found in board-rx51-peripherals.c the set-up for GPIO keys.00:36
CR0WOh damn. I'm watching the Android-N900 kernel.00:38
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ShadowJKYou probably want power5200:43
Maxdamantusmaybe another alternative would be to just mount a tmpfs over /sys/devices/platform/gpio-switch/proximity/ and make a "state" file with the content "1"00:43
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Maxdamantusif it's handled by mce, I think it just opens the file each time and reads it.00:45
Maxdamantusat least, when vibrating, it just opens a file in /sys and writes to it.00:45
Maxdamantuser, not "1" .. "open"00:46
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DocScrutinizer05CR0W: you *might* try mounting a plain file directory over the /sys/devices/platform/gpio-switch/proximity/, and have plain files in there to which you can write the state you want. We tried that for iirc magnet sensor and it worked until next boot, then stuff gone terribly haywire iirc00:51
CR0WDocScrutinizer05: What do you mean by "then stuff gone terribly haywire iirc"?00:52
DocScrutinizer05ooh Maxdamantusalready said exactly same00:52
DocScrutinizer05iirc we seen some process who used toread from that sysnode spinning busy and eating 100% cpu00:53
CR0WAnyway, I'll try that. What is the name of the phone app exec so I can kill it?00:53
DocScrutinizer05you'll notice via top ;-)00:53
DocScrutinizer05or worst case, a reboot will safe you, until you make that mount in initscripts, which is what didn't work iirc00:54
DocScrutinizer05most likely though, Maxdamantus been right with his guess about mce00:54
CR0WWhat's mce?00:55
DocScrutinizer05in which case you could use your own version of mce instead of a custom patched kernel00:55
infobotMCE = Machine Check Exception.  Mode Control Entity00:55
DocScrutinizer05the latter00:55
CR0WSo it's userland?00:56
CR0WThat would be safer to modify then.00:56
DocScrutinizer05could also be kerecv00:56
DocScrutinizer05 /usr/sbin/ke-recv00:58
DocScrutinizer05maybe, but unlikely00:58
DocScrutinizer05most maemo apps use some sort of middleware00:58
CR0WDamn, it's rerun after kill.00:58
MaxdamantusHmm .. you tried it for the back cover magnet sensor?01:00
CR0WNo, that process I mentioned.01:00
DocScrutinizer05which process did you mention?01:00
DocScrutinizer05Maxdamantus: yep01:00
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CR0WDocScrutinizer05: the proximity sensor has open or closed in uncovered state?01:00
CR0WDocScrutinizer05: rtcomm-call-ui01:01
DocScrutinizer05open afaik01:01
MaxdamantusI think the SD device is made invisible by the kernel, so it would just prevent userspace from realising the device went missing.01:01
DocScrutinizer05yeah, rtcom-call-ui gets preloaded by hildon01:01
DocScrutinizer05it's nearly impossible to shut it down, you need to edit the .desktop file01:01
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DocScrutinizer05Maxdamantus: I can't follow01:02
CR0WDocScrutinizer05: I mounted a tmpfs over proximity and added state and disable files with the right contents. I'll kill the process and see.01:03
DocScrutinizer05don't kill such processes too often, or you'll see a reboot01:03
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CR0WDamn, it works!01:04
DocScrutinizer05until next boot. toldya01:04
CR0WSo now, I just need to add this to the init system.01:04
CR0WI don't know how it works on debian, can I get a quick guide? :)01:04
DocScrutinizer05last time adding it to sysinit caused massive trouble01:06
MaxdamantusDocScrutinizer05: in the omap_hsmmc driver, there's a omap_hsmmc_protect_card function that checks whether the cover is open.01:06
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DocScrutinizer05I dunno why01:06
Maxdamantuswhich obviously doesn't work through sysfs01:06
DocScrutinizer05err yup, that too01:06
CR0WMaxdamantus: hey, thanks. So I need to change this function and rebuild the kernel to "fix" the hall sensor.01:06
DocScrutinizer05there are patched kernel modules anyway01:07
MaxdamantusCR0W: I don't know. I'm just pretty sure you need to do something like that to fix the effects of the back cover sensor.01:09
Maxdamantusbecause the effects are in the kernel, rather than in userspace.01:09
CR0WI'm guessing that sensor being broken or magnet missing is a common issue.01:09
CR0WDocScrutinizer05: is there a source for that?01:10
MaxdamantusI think there's a common fix to the magnet missing thing though: add another magnet.01:10
Maxdamantusdunno what the stand feels like without the magnet.01:10
Maxdamantusfeels nice with it, because it snaps onto the back.01:10
DocScrutinizer05Maxdamantus: (efects in kernel) both kernel and userland effects01:11
* Maxdamantus would disable the sensor anyway if he ends up using a newer kernel, because he'd also use btrfs across the SD card and eMMC.01:11
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DocScrutinizer05CR0W: I'm not sure about source available01:12
CR0WDocScrutinizer05: I'll figure it out, thanks.01:12
CR0WNow I know that that proxmity sensor "fix" won't do.01:12
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CR0WBecause when the screen is locked now, the phone app unlocks it, so I could receive a call in a pocket.01:13
DocScrutinizer05well, possibly the card had io errors while userland thought it should be available01:13
CR0WDoes that app have source available?01:13
DocScrutinizer05according to Maxdamantus reasoning01:14
DocScrutinizer05which app?01:15
CR0WThe phone call one.01:16
CR0WI would make it ignore the proximity sensor.01:16
DocScrutinizer05rtcom-call-ui. nope. and there's more than just rtcomm-call-ui to it when doing a phonecall. Not trivial to even spot what needed "fixing"01:17
DocScrutinizer05I'd honestly rather fix the hw01:18
CR0WI'm working on that.01:18
DocScrutinizer05a flex cable is pretty cheap01:19
CR0WIf the charge indicator, front camera, proximity sensor are all dead, it's most likely flex, right?01:19
CR0WIt's weird the LCD works, I guess the flex is damaged in that left part only.01:19
CR0WI found a "factory new original" one, but a few persons had trouble with the seller and I'm worried I'll join them.01:20
DocScrutinizer05one broken VDD or GND line may suffice to cause all those errors01:21
CR0WSo now my strategy is to buy a more broken N900 for spare parts.01:21
DocScrutinizer05that's nonsense particularly for flex cable01:21
CR0WI wonder if it's something that could be fixed by tape.01:21
DocScrutinizer05flex cables for N900 sources are legion on fleabay01:22
DocScrutinizer05and for a 7 bucks, your risk is manageable ;-)01:22
CR0WI'd rather not buy something from abroad, but I'll think about it.01:22
DocScrutinizer05I'd send you one of my spares, but I'm afraid I can't afford to package and pay the porto to compete with what it costs in china01:24
Maxdamantusthe thing the flex cable connects to on the motherboard is they bit you were unsure about obtaining for a while, isn't it?01:26
Maxdamantusso there are people actually manufacturing the female side, but not the male side?01:27
Maxdamantusmaybe other way around01:27
DocScrutinizer05but we found that connector01:27
DocScrutinizer05also I doubt anybody is building new flex cables now01:28
DocScrutinizer05might even be original Nokia spare parts01:29
DocScrutinizer05though some flex come with camera fake, those for sure are mo original Nokia parts ;-)01:29
DocScrutinizer05we should've started that Neo900 project a year earlier, would've made a lot of things easier for us01:30
DocScrutinizer05the connector got EOL'ed a mere 2 months before we started searching for it01:31
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DocScrutinizer05but we found a source that's supposed to have another 10k or maybe more on stock01:32
DocScrutinizer05so if our 1000 don't suffice...01:33
DocScrutinizer05...we will order more of them01:33
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BernteAnybody knows the most up-to-date OS version number for an N900?01:46
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infobot[combined] the rootfs fiasco image of maemo. For N900 latest (PR1.3.1) see (or )01:53
DocScrutinizer05aka 21.2011.38-101:53
DocScrutinizer05or simply cssu-testing-9?01:54
infobotrumour has it, cssu is
DocScrutinizer05Latest version: Testing(2014-01-01): 21.2011.38-1Tmaemo9.101:56
DocScrutinizer05which probably is as recent as it gets01:57
DocScrutinizer05err, as up-to-date as it gets01:57
DocScrutinizer05Bernte: ^^^01:58
DocScrutinizer05infobot: literal pr13101:58
infobot"pr131" is "<reply>see combined"01:58
DocScrutinizer05infobot: literal combined01:59
infobot"combined" is "the rootfs fiasco image of maemo. For N900 latest (PR1.3.1) see (or )"01:59
DocScrutinizer05infobot: no, combined is the rootfs fiasco image of maemo. For N900 latest (PR1.3.1) see
infobotDocScrutinizer05: okay01:59
DocScrutinizer05infobot: combined is also
infobotokay, DocScrutinizer0502:01
* CR0W good night02:02
DocScrutinizer05n8 CR0W02:02
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BernteDocScrutinizer05, thanks ...13:00
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BernteDoes the standard N900 calendar support CalDav? Is there a way to get it working?13:58
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Maxdamantus feels alright in Conkeror.15:25
Maxdamantusthough it randomly segfaults with the xulrunner in Fremantle .. I think it's some xulrunner bug.15:26
Maxdamantus(conkeror does)15:26
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Maxdamantusthough it seems to be held up during page loads, which doesn't happen in microb, presumably because the drag isn't in JS.15:29
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CR0WMaxdamantus: conkeror is a gecko browser working on N900?16:55
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