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Following
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Riding horses, hacking computers, phones and smartwatch.
pavel

Pavel Machek

Nejlepsi snih na bezky je na silnici Stihlice -- Vyzlovka.
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pavel

Pavel Machek

Gnome Software has this "wheel" button on packages... you press it, and it updates the package. That's not what I would have guessed it would do.

What is worse phone (OnePlus 6 with PostmarketOS) no longer sees the wifi. Any ideas besides "wipe and start again"?
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pavel

Pavel Machek

This is what my fosdem talk will be about... and also fallback if hdmi from phone fails. My notebook with real slides is too far away due to mistake.


Pavel Machek
pavel ucw.cz
social.kernel.org/pavel

horses R+
smartwatch bangle.js2
phones s4 mini
kernel hacker


phones
dumb sensors
no useful isp
camera mandatory


ae, af, debayer, color
lens shading, denoise, yuv, encoding


working design
sensor in mid/high res
debyer+downscale on gpu
on photo: save raw
on movie: pass yuv data to gstreamer


clicks machine
call for hero, @dos
gitlab.com tui/tui ccam
pdaf
movie first
librem 5 specific, 8bit
isp on gpu
30 fps, 1000x700 movie
hw bug


megapixels
mature
problem with new gtk
unsuitable for long movies


libcamera + millicam
tui/libcamera mcam.cpp
debayer + color on gpu
af from @nekocwd
needs bayer re-processing, yuv, lens


4cc
dng is hard
width,height,fourcc
tui/tui 4cc


hw
Librem 5
OnePlus 6


thank you
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pavel

Pavel Machek

I'm at fosdem. Talking about phone cameras at saturday. Feel free to join!
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pavel

Pavel Machek

Reply to @xChaos@f.cz
@xChaos @janantos Pozor, on ten 3d tisk ... myslim neni neco co je dobre mit v mistnosti. Myslim ze to do vzduchu uvolnuje ... ne uplne hezke veci.
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pavel

Pavel Machek

Reply to @fossdd@chaos.social
@fossdd @martijnbraam Ah, interesting, thanks for a pointer! I looked at various kaios devices, and they seem to be ~ same weight as the samsung s4 mini... and s4 will be easier to support.
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pavel

Pavel Machek

Reply to @martijnbraam@fosstodon.org
@martijnbraam Thanks. Call audio is important to me. (Samsung S4 mini VE works, but only with loudspeaker... and battery life is ~20 hours. Not great, not terrible.)
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pavel

Pavel Machek

Reply to @martijnbraam@fosstodon.org
@martijnbraam Is it useful as a phone in postmarketos?
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pavel

Pavel Machek

gsd-color. Not sure what it is supposed to do, but what it does is turning phone into hand warmer. killall -STOP gsd-color seems to fix it. #postmarketos on Samsung S4 mini VE.
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pavel

Pavel Machek

Reply to @pavel
@gravitylord I may have misparsed the article. Anyway, requiring subscription for features user's hardware already has is not ok, either.
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pavel

Pavel Machek

Reply to @gravitylord@peertube.gravitywell.xyz
@gravitylord Tesla is not ... great company. But removing features from someone else's hardware should not be legal. Laws should be fixed here for better customer protection. Nor should be bricking or adding advertising after sale, for that matter :-(.
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pavel

Pavel Machek

Ano, jsme v cesku. Tak proc nechavame japonce, aby tu rozdmychaval nacionalismus? Proc neodsoudime Okamuru? Aha, on se pred soudem schovava v parlamentu :-(.

https://www.seznamzpravy.cz/clanek/domaci-politika-tady-jsme-v-cesku-ne-na-ukrajine-okamura-odsoudil-jeji-vlajku-na-karlove-moste-297291
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pavel

Pavel Machek

Reply to @mcepl@en.osm.town
@mcepl @briankrebs That page has steps for "don't have a smartphone". But yes, still a shame and reason to avoid ryanair.
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pavel

Pavel Machek

Reply to @briankrebs@infosec.exchange
@briankrebs Forced to use mobile phone app? Like... mobile phone is now a requirement to enter US? Mobile phone capable of running that app? Not good. Asking for personal data of other people? That should not be legal. Nor should be the other stuff :-(.
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pavel

Pavel Machek

Reply to @Natanox@chaos.social
@Natanox @Nicro @kura I'm afraid that any kind of skyrocketing in phone area is hard.

I'd like free software to skyrocket on phones, but simply free software does not seem to be enough in that area.
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pavel

Pavel Machek

Mozna jste si vsimli zjevnych podvodu na FB. Je videt ze na reklame se da vydelavat... i kdyz si reklamu zada podvnodnik. Dalsi dobry trik je, podvodnikum proste jen dat vyssi sazbu. Jo. A kdyz kliknete na jednu, tak jste asi na podvody nachylny, tak proc to nezkusit vickrat. Jak to rikaj "adblock je antimalware"?

Ja jsem na social.kernel.org/pavel .

https://www.seznamzpravy.cz/clanek/ekonomika-meta-vydelava-miliardy-dolaru-na-podvodnych-reklamach-odhaluji-interni-spisy-293541
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pavel

Pavel Machek

Reply to @Nicro@fedi.absturztau.be
@Nicro @Natanox @kura Not really. Sailfish is as bad as Android -- they tend to run downstream kernels AFAICT. That makes working with them hard.

Porting required patched from downstream to upstream is significant work... (And you can probably get better price/performance with an Android phone).

Take a look at Fairphone -- they are doing right thing and actually working to support their phones upstream.
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pavel

Pavel Machek

Reply to @Nicro@fedi.absturztau.be
@Nicro @Natanox @kura Yes, SailfishOS could run on more devices with some effort. But they are tying to make money...
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pavel

Pavel Machek

Reply to @Natanox@chaos.social
@Natanox @kura Yeah, so... More competition in phone space is good and Sailfish OS is closer to normal distribution than Android. But not being less open source then Android is show stopper for me. (Plus, they work with downstream kernels, similar to Android).
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pavel

Pavel Machek

Reply to @dos@librem.one
@dos I believe so. Capturing 5 seconds of raw bayer data in high resolution would be very nice when trying to take a photo of fast-moving event... like horse jumping.

We'll eventually want that capability, and someone has to be first.
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