| untakenstupidnic | is it possible to connect mainstream headphones to n900? | 13:28 |
|---|---|---|
| KotCzarny | what is 'mainstream headphones' | 13:29 |
| KotCzarny | you mean bt4+ ? | 13:29 |
| KotCzarny | or btle ? | 13:29 |
| untakenstupidnic | the TRRS earlobes you would connect to the average android phone and it works | 13:30 |
| KotCzarny | i guess there should be adapters for funky ring configs | 13:31 |
| untakenstupidnic | couldn't it be solved in software? | 13:31 |
| KotCzarny | but standard says you should be able to work, what problem you are having? no audio at all or just one side? | 13:31 |
| untakenstupidnic | i think the standard nokia uses is different | 13:34 |
| untakenstupidnic | it gives a loud buzz when i connect it, have not tested it with sound | 13:34 |
| sixwheeledbeast | untakenstupidnic: OMTP vs AHJ you can buy converters to flip R2 and S | 13:51 |
| Wizzup | untakenstupidnic: yeah so the three ring is silly on the n900 | 13:51 |
| Wizzup | you're probably hearing 'tv out' :) | 13:51 |
| KotCzarny | shouldnt it turn off on the n900's side automatically when it detects headphones? | 13:51 |
| KotCzarny | might be that his headphones have weird impedance | 13:52 |
| KotCzarny | which doesnt trigger that | 13:52 |
| sixwheeledbeast | tv out wouldn't be active in "audio" mode AFAIK | 13:52 |
| Wizzup | I very carefully pick headphones with two rings for my fremantle phone | 13:52 |
| KotCzarny | simple fix would be getting 3--4 rings adapters | 13:53 |
| Wizzup | everything else (apart from the nokia ones you get with them) are snafu | 13:53 |
| sixwheeledbeast | I only use nokia headset. | 13:53 |
| sixwheeledbeast | they are pretty decent IMO. wh205 IIRC | 13:54 |
| KotCzarny | https://www.aliexpress.com/item/32824341405.html | 13:57 |
| KotCzarny | for example | 13:57 |
| KotCzarny | or similar | 13:58 |
| sixwheeledbeast | I would say https://www.ebay.com/itm/191478731018 is more suitable | 14:02 |
| KotCzarny | anyway, its a possible solution | 14:06 |
| KotCzarny | 2 rings might be better to short the video to gnd and make n900's detection work | 14:06 |
| KotCzarny | and shutdown signal on it | 14:06 |
| sicelo | 2 rings means what? | 14:08 |
| KotCzarny | only audio, old minijacks | 14:09 |
| sicelo | stereo or mono? | 14:09 |
| KotCzarny | stereo | 14:09 |
| KotCzarny | TRG | 14:09 |
| KotCzarny | as opposed to TRRG | 14:09 |
| sicelo | ok | 14:09 |
| KotCzarny | mono would be TG | 14:09 |
| KotCzarny | hmm | 14:10 |
| KotCzarny | in that case it should be called 1 ring, so i guess to better stick to TxxG | 14:10 |
| KotCzarny | s/G/S/ | 14:10 |
| infobot | KotCzarny meant: in that case it should be called 1 ring, so i guess to better stick to TxxS | 14:10 |
| KotCzarny | tip, ring, shield/ground | 14:10 |
| sixwheeledbeast | A 2R to S crossover is just more useful to have than a 4 to 3 pole convertor but i imagine both should work for this purpose | 14:32 |
| KotCzarny | all depends how that second ring is wired or not | 14:33 |
| KotCzarny | and how n900 detects headphones vs tv | 14:33 |
| sicelo | hp vs tv is detected using the 75-ohm impendance thing | 14:33 |
| sixwheeledbeast | ^ | 14:33 |
| sixwheeledbeast | headphones = mic/ground is short, headset = mic has an impedence, tv out 75 ohm on video | 14:35 |
| KotCzarny | isnt there a button too? | 14:35 |
| KotCzarny | which also abuses that additional ring | 14:35 |
| sicelo | the button shorts mic, iirc :) | 14:36 |
| sixwheeledbeast | headset type state is set on plug in. button shorts the mic out | 14:36 |
| KotCzarny | i suspect his headphones have impedance that is hovering around that 75ohm with some margin | 14:37 |
| sixwheeledbeast | I'd expect them to be much lower | 14:37 |
| sicelo | KotCzarny: put in Samsung phone hp in your N900 .. it'll do what he's talking about. it's a known 'problem' - hence the convertor as suggested by sixwheeledbeast. | 14:38 |
| sicelo | not hp, headset (with mic) | 14:39 |
| sixwheeledbeast | it's the same for any device with the wrong 4pin type. Playstation 4 controller for example. | 14:39 |
| sixwheeledbeast | this is why I say a OMTP to AHJ convertor is more useful. | 14:40 |
| KotCzarny | still, ring-count adapter i would call it. unless it has some voodoo inside | 14:41 |
| sixwheeledbeast | er? | 14:41 |
| KotCzarny | impedance thingy? | 14:42 |
| sicelo | the convertor? it's just straight-through wires. nothing else | 14:43 |
| sixwheeledbeast | the two things we posted do different jobs? | 14:44 |
| sixwheeledbeast | they have not active components but are different | 14:44 |
| KotCzarny | both should short second ring to shield, no? | 14:45 |
| sicelo | no. one will swap them. | 14:46 |
| KotCzarny | huh? | 14:46 |
| sixwheeledbeast | no | 14:46 |
| KotCzarny | that would do the wrong thing | 14:46 |
| sixwheeledbeast | no | 14:46 |
| sixwheeledbeast | different things but same goal | 14:46 |
| sixwheeledbeast | for this purpose | 14:46 |
| sicelo | maybe the question is - what is the difference between AHJ and OMTP, in terms of wiring, that is | 14:46 |
| sixwheeledbeast | 2r and S is flipped | 14:47 |
| sixwheeledbeast | that's all the converter does cross them over | 14:47 |
| sixwheeledbeast | 4 to 3 pin would short mic and ground at the adapter | 14:48 |
| sicelo | here's a picture, https://forums.windowscentral.com/attachments/windows-phone-8-how-guides/49276d1384087706t-headset.jpg | 14:48 |
| KotCzarny | shouldnt it be backwards compatible? | 14:48 |
| KotCzarny | hah, in this case you are right | 14:48 |
| sicelo | so yes, if you need to use mic, you need to have the mic swapped out with ground. if you don't need mic, you can short the entire sleep | 14:48 |
| sixwheeledbeast | backwards compatible? they are two different standards (blame apple) | 14:48 |
| sicelo | sleeve | 14:49 |
| KotCzarny | converter might be better than just dumb trrs->trs | 14:49 |
| sixwheeledbeast | headphones will work in both, but headsets have buzzing nosie on the wrong one. | 14:49 |
| untakenstupidnic | is there a way i could type <>{} without a virtual keyboard? | 15:17 |
| KotCzarny | remap some keys | 15:17 |
| KotCzarny | ~remap | 15:17 |
| KotCzarny | ~ping | 15:18 |
| infobot | 1 packet transmitted, 1 packet received, 0.0% packet loss | 15:18 |
| KotCzarny | ~keyremap | 15:18 |
| infobot | it has been said that keyremap is http://wiki.maemo.org/Remapping_keyboard | 15:18 |
| sixwheeledbeast | If you only need them in terminal you also have an option to change just the terminal quickbar. | 15:19 |
| bencoh | I have a keymap I could share | 15:22 |
| bencoh | for non-qwerty devices | 15:22 |
| untakenstupidnic | i want to write C and i'm puzzled how could i fit <>{}[] on the keyboard | 15:30 |
| KotCzarny | dont forget the | | 15:30 |
| KotCzarny | and some other special chars | 15:30 |
| untakenstupidnic | yeah | 15:30 |
| untakenstupidnic | never thought trigraphs would be of use | 15:30 |
| untakenstupidnic | i should check if they themselves could be written | 15:31 |
| KotCzarny | yes | 15:32 |
| KotCzarny | i have mapped | to fn-z i think or something | 15:32 |
| KotCzarny | but you really should just get bt keyboard | 15:33 |
| untakenstupidnic | what is it? | 15:33 |
| KotCzarny | bluetooth keyboard | 15:33 |
| KotCzarny | it might be possible to connect plain usb keyboard to n900, but it all depends how much power it would draw (so no fancy leds etc) | 15:34 |
| untakenstupidnic | but it wouldn't be quite mobile | 15:35 |
| bencoh | untakenstupidnic: http://pastebin.notk.org/pastebin.php?show=f175c3839 | 15:37 |
| bencoh | I don't remember which layer I'm using though | 15:38 |
| bencoh | I think the "de" one, but I'm not certain | 15:38 |
| bencoh | yeah, that's the one | 15:38 |
| bencoh | you might need to adapt it to match your keyboard overlay | 15:39 |
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