Sebastian Krzyszkowiak  

Purism has released the Librem 5's mechanical design, adding to already available schematics and PCB layouts.

source.puri.sm/Librem5/3D_desi

I think that may make it the first proper Open Hardware smartphone out there.

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Sebastian Krzyszkowiak  

Seems like nobody was reaching for this low-hanging fruit, so I did it myself:

"Glowup" is a quickly hacked up thing that lets you glow your Librem 5 photos up with one click right on the phone, using and about 30 seconds of processing.

gitlab.com/dos1/glowup

(late)#caturday 😜

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Sebastian Krzyszkowiak  

The hardware design is now released at gitlab.com/dos1/debubo

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Sebastian Krzyszkowiak  

Took me 3 days of soldering, but it works!

I can connect it to a Librem 5 and it automatically does all the needed PD stuff to expose its UART over USB-C 😁 It's also capable of a lot of other PD magic as a USB PD analyzer / injector / filter.

However, while these solder joints made a good job lasting till I got the firmware PoC working, it doesn't seem like they're going to last much longer... More soldering ahead 😫

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Sebastian Krzyszkowiak  

before / after (both fully automatic, just taking more time to process)

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Sebastian Krzyszkowiak  

Current status: before / after

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Sebastian Krzyszkowiak  

No manual editing this time, but an automatic postprocessing script using darktable-cli and rudimentary lens corrections. Takes ~30 sec to develop on the phone - about ten times longer than the default script used by Millipixels, but with much better results.

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Sebastian Krzyszkowiak  

It seems to have happened without much fanfare, but about a month ago @purism has released the Librem 5 hardware layouts under GPLv3 (as original PADS and converted KiCad projects), joining the schematics that were already available from the start.

source.puri.sm/Librem5/l5-sche

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Sebastian Krzyszkowiak  

The recording of my talk - a dive into a bug in USB 2.0 and the problem of spontaneous modem resets that used to be experienced on the is now available to watch: fosdem.org/2024/schedule/event

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Sebastian Krzyszkowiak  

So turns out I'm going to be speaking at in February as part of the "FOSS on Mobile Devices" track. We'll go step-by-step through debugging a spontaneous modem reset issue that used to trouble the phone, which - spoiler alert - turned out to be a (not very well-)known bug in the 2.0 spec. Check this and other talks out at fosdem.org/2024/schedule/track

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Sebastian Krzyszkowiak  

That said, you don't need huge powerful but complex tools like or to make your photos look better. Imagine a simple to use app that lets you do basic stuff on the phone, like white balance or contrast correction, which could then take its time exporting at full res with all the heavy noise reduction algos without annoying the user while taking photos.

Does that sound like something you'd like to work on? 😁

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Sebastian Krzyszkowiak  

For practical reasons, photos that you are processed into JPEGs with lower quality than what the camera can do. There are some (complex) ways in which this processing could be made faster and therefore cram more pixels and algorithms that make things prettier, but meanwhile...

Each photo you take is stored as both raw DNG and processed JPG - so you can go back to raw data and retroactively gain quality. See dosowisko.net/l5/photos/ for an example.

(cont.)

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Sebastian Krzyszkowiak  

After finally attempting to rescue my long broken devkit, I ended up with it booting into this Feb 2020 image. It already somewhat resembles the current thing, but gosh, we sure have made a lot of progress since then! 😁

Excuse the white balance being all over the place, this was *not* shotonlibrem5 ;)

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Sebastian Krzyszkowiak  

Same thing in static form 😺

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Sebastian Krzyszkowiak  

Apparently Flappy Bird is 10 years old this year. It reminded me of my crappy ncurses remake I did back in 2014. Now it reacts to mouse input and does haptic feedback when played on a phone 😂 gitlab.com/dosowisko.net/flasc

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Sebastian Krzyszkowiak  

PSA: If you're an adventurous PureOS user who has enabled `landing` repository in order to receive untested updates early, brace yourself: in a few days `landing` is going to start tracking Debian bookworm (instead of bullseye) and targeting PureOS crimson (instead of byzantium). It will still take some time to make crimson work, so please disable the repo! If you still want to be on the bleeding edge, consider enabling `byzantium-updates-proposed` instead.

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Sebastian Krzyszkowiak  

Experimenting with utilizing assisted GNSS techniques on . Cold fix takes about 3 minutes in perfect conditions, but can easily take *much* longer otherwise - that's how GPS works. However, by downloading satellite data from the Internet instead of the sky it can go down to under a minute; sometimes even just a few seconds. Still a proof-of-concept at this point, but can already tell that catching a fix gets significantly easier this way:)

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Sebastian Krzyszkowiak  

Croatia through Librem 5's eye - photos taken on automatic settings, with interactive comparison between images straight out of Millipixels and those processed in darktable afterwards.

dosowisko.net/l5/photos/

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Sebastian Krzyszkowiak  

Librem 5 waking up from system suspend on incoming call's first signal; soon your L5 will do that too.

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Sebastian Krzyszkowiak  

Just flashed my phone with an OS image that was created on the same phone a few minutes earlier 😜 It works!

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