Follow-up Two: Mobian on the Pixel 3a / 3a XL
Follow-up Two: Mobian on the Pixel 3a / 3a XL
This is a follow-up to my earlier posts:
https://lemmy.sdf.org/post/12809764 https://lemmy.sdf.org/post/19600671
We're Getting Closer.
It's just small stuff left that needs a bit of piecing together, though I've now been daily driving my port for the past two weeks already.
This Works
- booting
- display
- touch
- modem <- You might have to switch to the other slot if it does not work:
mmcli -m 0 --set-primary-sim-slot=1, options are1or2. Note that the modem could also be a different number, maybe try-m 1if it is not found as the command will reboot the modem and then it changes. - plymouth
- battery/charging
- mobile data
- wifi
- torch
- suspend
- call audio
- vibration
- Bluetooth™
- full disk encryption
- eSIM (I'm working on the packaging for the tool you need to provision it)
- SMS
- audio (ALSA config not packaged, but can be added manually)
- camera (have taken a few photos, but the kernel driver is still work in progress and sometimes it just does not work)
This Has An Unknown Status
- Fingerprint Sensor
- NFC (should work, does so on pmOS)
This Does Not Work Yet (Soon™)
- GPS
- USB host mode (no Kernel support yet, but apparently this is being worked on)
- Verified Boot (first need to do research whether this is actually feasible)
This Is Missing And Will Come Later
- accelerometer
- magnetometer
- ambient light sensor
- barometer
Project Status
To Do List
- Make installer images work on this device
- Have droid-juicer run on installer images
- Get into the repos:
tinyalsaandq6voiced(I've already packaged both)- ITP for Tinyalsa: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1079473
- ITP for q6voiced: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1080483
- Combine SDM670 kernel patches with those in the Mobian qcom kernel
Done List
- New release of qcom-phone-utils required so that my patches are available from the repo
- https://salsa.debian.org/DebianOnMobile-team/qcom-phone-utils/-/commit/4f77281197c6ba1cfc1a82596157d00e8a7e014b (firmware folders)
- https://salsa.debian.org/DebianOnMobile-team/qcom-phone-utils/-/commit/9aa29a1d0bd2327e9c74317d516a8aeecf820304 (fixes bootimg generation with LUKS)
- https://salsa.debian.org/DebianOnMobile-team/qcom-phone-utils/-/commit/3ddb192b5c78b444065f23647b373ad66ce3617d (fixes on-screen keyboard for LUKS passphrase)
- Remove hard-coded value in the
droid-juicersystemd unit - Make sure my
q6voicedpackage no longer includes a hard-coded config for this device (known solution, need to implement) - add udev rule for the vibration motor to the right package
Misc Issues
- ALSA config for the device has not been upstreamed yet
- Issues with 5 GHz wifi
- Can be worked around by forcing the phone to only use the 2.4 GHz band, for example using
nmtui, the network settings of GNOME/Phosh are bit too simplistic for that
- Can be worked around by forcing the phone to only use the 2.4 GHz band, for example using
- No idea how to get the call audio on Bluetooth, meaning you will have to hold the phone or use a cable, for now
(This is a non-exhaustive list)
Low Priority
- create/find script/tool that brings up Bluetooth & then package it
Other than that... Everything should be there. It's definitely usable already.
Just a few smaller quirks to iron out and two packages to get into the repo.
The Sources (Use The Source, Luke)
- My efforts of packaging a device-specific kernel: https://salsa.debian.org/erebion/sdm-670-linux (which will be used until all patches are part of upstream Linux and we can finally use a regular mainline kernel)
- mobian-recipes, which is used to build images: https://salsa.debian.org/Mobian-team/mobian-recipes
- droid-juicer, which retrieves some important files from some partitions: https://gitlab.com/mobian1/droid-juicer
- https://wiki.postmarketos.org (lovely folks, thanks for sharing everything you found out the hard way :D)
Thanks For All The Fish
Huge thanks to be sdm670-linux project and flamingradian who runs the project (just one person!) to make sure the Kernel works on those devices! :)
I don’t know how Kernel development works, so I would have never started porting without this project.
Find that here: https://gitlab.com/sdm670-mainline/linux
Questions Accepted / Ask Me Anything About The Project
I will gladly answer all questions, I hope that more people will start porting if it becomes clear that this is not arcane magic. It’s mostly just arcane. And a community of friendly people that try to be helpful.#
Amazing work! I'm very excited to see mobile Linux reach a usable state for every day processing. Thank your for your time and energy. It is valuable and going to good use.
Why the Pixel 3a? Is there anything special about it (or not special, which might mean my old 3XL is good for more than gathering dust?)
How can I get involved? I know my way around C and would love to pitch in.
Yup. It definitely is now ready for everyday use, though there are still a few smaller issues I've got to fix. But nothing that stops me from using it now.
The only thing special about the Pixel 3a is that I had it already. Maybe it is special in that it is now the smallest Linux phone that is supported by a mainline kernel AND which is actually usable as a phone (for some other phones audio does not work, for example). Some might call a headphone jack something special... or an eSIM, as there are not many Linux phones with an eSIM.
To get involved, I recommend joining the Moban Development Matrix room: #mobian-dev:matrix.debian.social
Pretty sure we can find something where skills in C would be helpful.
Also, I keep some notes up to date over on my Forgejo instance: https://git.erebion.eu/forgejo/erebion/sargo-temp
I've been testing a handful of distros between my 6T and 3a as well, UBports, Droidian, Pmos, etc, lately I've been a little obsessed with wanting to try Sailfish OS, but it seems it's not worth trying in the USA without X, I'm unsure if it's even possible to purchase X here
No idea, but you could of course install Waydroid on Mobian. I hope Android Translation Layer (https://gitlab.com/android_translation_layer) will at some point get to a state where it is usable as the superior Waydroid alternative for many people.
No idea, but you could of course install Waydroid on Mobian. I hope Android Translation Layer (https://gitlab.com/android_translation_layer) will at some point get to a state where it is usable as the superior Waydroid alternative for many people.
Seeing posts like this inspires me to consider getting an older device and diving into projects like this myself. It’s amazing to think about all the possibilities and what could be created!! Thanks for sharing this post ~° ....
Definitely do! It's a lot of fun and it feels great to have Mobian on the phone instead of having old Android on it or even a phone in the trash and no phone.
Awesome! I'll give it another shot this week.
Let me know how it goes! You might notice an issue I have missed and can then fix. :)
If I‘m not completely mistaken, the chip is the same as on my oneplus6. I run postmarketOS/phosh but camera is dead for now. I dont have enough insight to grasp if its just a legal issue or more. I feel like the two projects are quite similar but the differences are hard to grasp really. Whats your background and do you have experience with postmarketos? How do you experience mobians installation and documentation?
Have a good one.
- That one uses an SDM845, while the Pixel 3a uses an SDM670. But there's a Mobian port to that one anyway. Not sure in what state, anyway. You could flash it and find out.
- Camera is probably dead because not all the code has been written yet.
- My background is just playing with Linux since before I was a teen, but I did not know anything about porting to phones until early this year.
- I have some experience with postmarketOS, but more with Mobian as I am more of a Mobian person. I have more exprience with their docs and community than with postmarketOS itself. Many mobile Linux projects depend on the postmarketOS wiki, as they have the best source of information.
- Mobian installation is easy, just flash the images.
- Mobian documentation is somewhat lacking, but I want to improve on that once I'm less busy porting. Can't do everything at once, of course.
Lovely work!
Thank you. :)
Have a nice day!
That's a great list of working stuff. Brilliant. I hope that one day that'll be on a device that isn't impossible to find here.
I'm sure you can find another device that can run Linux. :)
@erebion
This sounds fantastic, thanks for all that work!
It's great to see all these developments on pmOS and mobian!