[DEV][ROM][UNOFFICIAL] LineageOS 16.0 (Android 9) for Raspberry Pi 3 B and B+

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Muad.Dib

Senior Member
  • Greetings all users of that great LOS ROM for pi!

    Out of curiosity has any of you managed to remote desktop to that ROM from a computer?
    I was thinking to use some kind of VNC programs, but could not find any, so then I thought why not try Teamviewer, well that partially works like for pushing/pulling files (which I could have done with adb) but it says remote does not work on this device.
    Maybe some of you found a way to do it?

    Thanks in advance for you help if you can.

    Again thanks to @KonstaT for this great Port!

    Regards,
     

    tM&M

    Member
    Feb 6, 2020
    5
    0
    Hey KonstaT, thanks for the ROM.

    I have been using this due to USB boot support and have encountered some issues:

    - HDMI doesn't have sound unless "hdmi_force_edid_audio=0" in config.txt. I think it is trying to output in formats not supported. Headphone out is working well if I disable HDMI audio.
    - There seems to be graphical corruption, pixels showing wrong colors for ms at a time, unsure if TV issue. Not sure if you have overclocking anywhere.
    - Bluetooth keyboard is having issues inserting "h" and "g" randomly.
    - Wireless mouse is very laggy, seems some BT coexistence issue that has been documented for RPi 3.

    I would change the user data partition to F2FS vs EXT4, since you already have support compiled. It is quite faster for most SD/USB drives and will help with flash longevity. Would mount with "noatime,mode=lfs,active_logs=4" for better performance with most drives.

    Would also like to ask if you think reducing CMA and GPU memory is a good idea, as 320/256MiB seems a lot for such a board w/ 1GiB of RAM.

    Thank you again for building this for us.
     

    KonstaT

    Senior Member
    Jan 20, 2016
    418
    284
    KonstaKANG.com
    Greetings all users of that great LOS ROM for pi!

    Out of curiosity has any of you managed to remote desktop to that ROM from a computer?
    I was thinking to use some kind of VNC programs, but could not find any, so then I thought why not try Teamviewer, well that partially works like for pushing/pulling files (which I could have done with adb) but it says remote does not work on this device.
    Maybe some of you found a way to do it?

    Thanks in advance for you help if you can.

    Again thanks to @KonstaT for this great Port!

    Regards,


    There's been reports that VNC is working but I haven't tested any remote desktop solutions myself.

    Hey KonstaT, thanks for the ROM.

    I have been using this due to USB boot support and have encountered some issues:

    - HDMI doesn't have sound unless "hdmi_force_edid_audio=0" in config.txt. I think it is trying to output in formats not supported. Headphone out is working well if I disable HDMI audio.
    - There seems to be graphical corruption, pixels showing wrong colors for ms at a time, unsure if TV issue. Not sure if you have overclocking anywhere.
    - Bluetooth keyboard is having issues inserting "h" and "g" randomly.
    - Wireless mouse is very laggy, seems some BT coexistence issue that has been documented for RPi 3.

    I would change the user data partition to F2FS vs EXT4, since you already have support compiled. It is quite faster for most SD/USB drives and will help with flash longevity. Would mount with "noatime,mode=lfs,active_logs=4" for better performance with most drives.

    Would also like to ask if you think reducing CMA and GPU memory is a good idea, as 320/256MiB seems a lot for such a board w/ 1GiB of RAM.

    Thank you again for building this for us.

    Good to know your findings about hdmi_force_edid_audio property. It is specifically needed for some displays for HDMI audio to work which is why I've enabled it by default for everyone.

    I can't reproduce your issue with graphical corruption. Have you modified the system in some way?

    There's no plans to switch to F2FS. You could format the data partition to F2FS yourself and make changes to fstab (requires unpacking/repacking ramdisk.img in the boot partition).

    1gb of RAM is really not enough to run recent Android versions. GPU also requires quite a lot memory that is allocated from the total. I've increased CMA to 320M because 256M doesn't even get you through setup wizard without running out and crashing. You're of course welcome to experiment with different values.
     

    justjoin

    New member
    Apr 25, 2020
    2
    0
    Prevent LineageOS from Sleeping

    Hey KonstaT, thanks for the ROM.

    when HDMI screen goes off, the Android is also goes off (sleep), is there any setup that can make LineageOS still running even when screen goes off ( eg. im turning off the HDMI output monitor ).
    im using Raspberry Pi 3B+..
     
    Last edited:

    KonstaT

    Senior Member
    Jan 20, 2016
    418
    284
    KonstaKANG.com
    Hey KonstaT, thanks for the ROM.

    when HDMI screen goes off, the Android is also goes off (sleep), is there any setup that can make LineageOS still running even when screen goes off ( eg. im turning off the HDMI output monitor ).
    im using Raspberry Pi 3B+..

    Graphics drivers used in this build by default rely on the EDID information your connected HDMI display sends (see FAQ if you want to boot without any display connected). I think it is unexpected behavior from your display if it stops sending EDID if you switch it to standby. Your Pi doesn't turn off - it crashes constantly until it gets EDID again and you see it booting back up.
     

    justjoin

    New member
    Apr 25, 2020
    2
    0
    Graphics drivers used in this build by default rely on the EDID information your connected HDMI display sends (see FAQ if you want to boot without any display connected). I think it is unexpected behavior from your display if it stops sending EDID if you switch it to standby. Your Pi doesn't turn off - it crashes constantly until it gets EDID again and you see it booting back up.

    I mean its powered off, not just standby..
    The apps is for automatically power off and power on TV using relay... but when TV out powered off, the apps wont running
     

    KonstaT

    Senior Member
    Jan 20, 2016
    418
    284
    KonstaKANG.com
    I mean its powered off, not just standby..
    The apps is for automatically power off and power on TV using relay... but when TV out powered off, the apps wont running

    Sorry, you lost me there. What exactly are you trying to do?

    You need to use a HDMI display that sends EDID information. If your display stops passing EDID when it's turned off the graphics drivers are going to crash. This doesn't happen e.g. with any of my displays when switched off so it's not expected behavior. You can switch to SwiftShader software renderer that doesn't rely on the EDID but it's going to decrease graphics performance quite a bit.
     

    hp420

    Senior Member
    Jul 31, 2011
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    Gainesville, Fl
    Google Nexus 4
    T-Mobile LG G2
    REALLY great job here!!!! I spent all last night playing with this rom! I've been away from the android scene for a LONG time, so it took me a while to remember all the little tricks and extras to get things really set up 100% if I have no gapps. You should definitely consider recommending microG in your faq! I've got youtube installed and running perfectly, and IPTV plays like a champ! No other OS I've installed ro my pi3 can keep up with 1080p streaming without buffering making it practically unusable. Even watching yt with chrome on pi os is mediocre at best...this rom handles vanced yt like a beast though!

    Thanks for your advice in the 17.1 thread @KonstaT 😉 sorry if I came off a bit harsh earlier.
     
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    KonstaT

    Senior Member
    Jan 20, 2016
    418
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    KonstaKANG.com
    REALLY great job here!!!! I spent all last night playing with this rom! I've been away from the android scene for a LONG time, so it took me a while to remember all the little tricks and extras to get things really set up 100% if I have no gapps. You should definitely consider recommending microG in your faq! I've got youtube installed and running perfectly, and IPTV plays like a champ! No other OS I've installed ro my pi3 can keep up with 1080p streaming without buffering making it practically unusable. Even watching yt with chrome on pi os is mediocre at best...this rom handles vanced yt like a beast though!

    Thanks for your advice in the 17.1 thread @KonstaT 😉 sorry if I came off a bit harsh earlier.
    Last I've heard MicroG requires signature spoofing patch which is not included in LineageOS for security reasons.

    All MicroG features are likely not working but I haven't tested this myself.
     

    KonstaT

    Senior Member
    Jan 20, 2016
    418
    284
    KonstaKANG.com
    I can't download the resize zip because there are no mirrors found.
    AndroidFileHost has issues sometimest. Try refreshing the download page or try again later.

    I could find mirrors for the file just now at leas. The resize zip is actually the same for both Pi 3 & Pi 4 and different Android versions (LineageOS 16, 17 & 18).
     

    Muad.Dib

    Senior Member
  • Q: How to enable audio through 3.5mm jack?
    Execute following commands in 'adb shell'/serial console/terminal (you can enable built-in terminal app from Settings -> System -> Developer options -> Local terminal) to enable the feature and reboot your device:

    Greetings @KonstaT ,

    I used that script to divert sound to jack to test if that would solve my sounds problem.
    Is there a way to revert back to HDMI sound like using a similar script without having to reinstall fresh?

    Thanks in advance,

    Regards,
     

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    • 9
      Here’s my build of LineageOS 16.0 for Raspberry Pi 3 Model B and Model B+. It is unofficial and unsupported by the LineageOS team. It’s for advanced users only.

      Important! This image includes parts that are licensed under non-commercial license (Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International). You may use this build freely in personal/educational/etc use. Commercial use is not allowed with this build!

      Screenshot_20190627-114323_Settings.png


      https://konstakang.com/devices/rpi3/LineageOS16.0/

      lineage-16.0-20200713-UNOFFICIAL-KonstaKANG-rpi3.zip
      https://www.androidfilehost.com/?fid=8889791610682891697
      md5:3689e767c41858bb53db20190b6542a5

      Working:
      • Audio (HDMI, 3.5mm jack, USB microphones, bluetooth speakers/headsets, etc)
      • Audio DAC (using PCM512x DACs e.g. Hifiberry DAC+)
      • Bluetooth
      • Camera (using official Pi camera modules & UVC USB webcams)
      • GPIO
      • GPS (using external USB modules e.g. U-Blox 7)
      • Ethernet
      • Hardware accelerated graphics (VC4)
      • HDMI display
      • I2C
      • IR remotes (using external GPIO IR modules e.g. TSOP4838)
      • RTC (using external GPIO I2C modules e.g. DS3231)
      • Serial console (using external GPIO serial console adapters e.g. PL2303)
      • SPI
      • Touchscreen/multi-touch (using official 7” display with SwiftShafer software renderer)
      • USB (mouse, keyboard, storage, etc)
      • Wifi
      • Wifi tethering

      Not working:
      • Hardware video decoding & encoding

      Issues:
      • SELinux is in permissive mode
      • and more…

      Sources:

      Thanks:
      • peyo-hd and everyone who has contributed to android-rpi
      • brobwind for graphics and bluetooth fixes
      • Eric Anholt for VC4 graphics driver
      • Google for Android Things platform
      • Android-x86 project
      • LineageOS team & everyone who has contributed to LineageOS 16.0
      4
      How to install:
      1. Follow the official Raspberry Pi instructions for writing the image to the SD card (Linux, Mac, Windows).

      FAQ:

      Q: I can’t find developer options, why?
      A: Settings -> About tablet -> Click ‘Build number’ several times

      Q: I have no root, why? What is that hashtag on my status bar?
      A: You need enable root access under Settings -> System -> Developer options -> Root access. Root management is now integrated as part of LineageOS’ Privacy Guard and you can manage per app permissions under Settings -> System -> Developer options -> Manage root access. You’ll have a persistent notification in the status bar when you’re running an app that uses root permissions.

      Q: Settings -> Storage shows total system size of 4 GB. There's unallocated space on my sdcard. What should I do?
      A: This is a 4 GB image, remaining space on your sdcard will remain unallocated. You can use e.g. GParted and extend /data partition (/dev/block/mmcblk0p4) to cover the unallocated space. Resizing the partition manually will break support for encrypting /data. Format /data in TWRP recovery (Wipe->Format data) after resizing to leave required space for crypto footer.

      Or you can flash my resize zip in TWRP.


      Q: My display is not working. I can only see the rainbow screen but no Android boot animation. What should I do?
      A: This build only supports HDMI displays that report supported resolutions using EDID. See this page under 'Which values are valid for my monitor?' to see how to check which resolutions your display supports using Raspbian. 1280x720 resolution is used by default with this build. If your display doesn't support 1280x720 resolution, you can try changing value in /boot/resolution.txt to something it does.

      Q: I have official 7” LCD display and touchscreen. What should I do?
      A: Official 7” touchscreen is only supported using SwiftShader software renderer. See below how to switch between different graphics drivers. You will also need to change display size under Settings -> Display -> Display size (or change ro.sf.lcd_density to 120 in /system/build.prop) to adapt to the smaller resolution.

      Q: I need to use SwiftShader software renderer to use the official 7” display or I want to boot without any display connected. What should I do?
      A: Warning, SwiftShader is a software renderer and using it affects graphics performance. You can switch between MESA and SwiftShader graphics drivers by executing following commands in ‘adb shell’/serial console/terminal (you can enable built-in terminal app from Settings -> System -> Developer options -> Local terminal):

      Code:
      su
      rpi3-graphics.sh swiftshader
      Code:
      su
      rpi3-graphics.sh mesa

      Q: Raspberry Pi doesn’t have power button, how do I power off/reboot my device?
      A: Following keyboard keys work as Android buttons: F1 = Home, F2 = Back, F3 = Multi-tasking, F4 = Menu, F5 = Power, F11 = Volume down, and F12 = Volume up. You can also use one of many third party reboot applications.

      Q: How to create a DIY hardware power button?
      A: You can send power button events by connecting GPIO21 to ground.

      powerbutton.png


      Execute following commands in ‘adb shell’/serial console/terminal (you can enable built-in terminal app from Settings -> System -> Developer options -> Local terminal) to enable the feature and reboot your device:

      Code:
      su
      rpi3-powerbutton.sh

      You can also use the DIY power button to boot the device to TWRP recovery. Press and hold the button while powering on the device until you see the TWRP screen. If you use this method to boot to recovery, you can ignore what is said about booting into/out of TWRP later in the FAQ.

      Q: How to enable audio through 3.5mm jack?
      Execute following commands in 'adb shell'/serial console/terminal (you can enable built-in terminal app from Settings -> System -> Developer options -> Local terminal) to enable the feature and reboot your device:

      Code:
      su
      rpi3-audio-jack.sh

      Q: How to boot from USB device?
      A: Warning, this is an experimental feature and there’s still some issues with it. Android shows USB storage notification for each partition and you should ignore these. TWRP shows errors in few places but everything seems to be working regardless of this.

      1. Follow the official instructions on how to enable USB boot on Pi 3 B (this step is not needed on Pi 3 B+)
      2. Write image to your USB device as above
      3. Mount the USB device on your computer and rename following files on the boot partition:
        Code:
        mv ramdisk.img ramdisk-sdcard.img
        mv ramdisk-usb.img ramdisk.img
        mv ramdisk-recovery.img ramdisk-recovery-sdcard.img
        mv ramdisk-recovery-usb.img ramdisk-recovery.img
      4. Plug in the USB device to your Raspberry Pi, remove any sdcard, and boot

      Q: How to boot to TWRP recovery?
      A: There’s currently no proper way to boot between Android and TWRP, but this can achieved by renaming the ramdisk you want to boot. Execute following commands in ‘adb shell’/serial console/terminal (you can enable built-in terminal app from Settings -> System -> Developer options -> Local terminal) and reboot your device:

      Code:
      su
      rpi3-recovery.sh

      If mouse cursor doesn’t appear, try replugging your mouse.

      Q: How to boot out of TWRP recovery?
      A: You can execute the same script in TWRP terminal (Advanced->Terminal) if you have boot and system partitions mounted (Mount->Boot & Mount->System):

      Code:
      rpi3-recovery.sh boot

      Or you can flash my recovery2boot zip in TWRP.

      Q: How to update from previous LineageOS 16.0 build without losing data?
      A:

      1. Boot to TWRP recovery with the build you want to keep the data (see FAQ)
      2. Plug in an external USB storage device and select 'Backup'
      3. Use 'Select Storage' to choose the USB device and 'Swipe to backup' (it's only necessary to backup the data partition so you can uncheck other partitions to speed up the process)
      4. Write new LineageOS 16.0 image to the sdcard following installation instructions
      5. Boot to TWRP recovery with the new build (see FAQ)
      6. Select 'Restore' and find the backup you created from the USB device ('Select Storage')
      7. Make sure you only have data selected as partitions to restore (uncheck other partitions if available) and select 'Swipe to Restore'
      8. (Flash Google apps package/other add-ons you had previously installed)
      9. Boot out of recovery (see FAQ)

      Q: How to install Google apps?
      A: Warning, installing gapps slows things down especially on low-end devices with limited amount of RAM such as this one.

      1. Download open_gapps-arm-9.0-pico-xxxxxxxx.zip and save it to your device’s internal storage or use an external USB drive
      2. Boot to TWRP recovery (see FAQ)
      3. Install open_gapps-arm-9.0-pico-xxxxxxxx.zip from your selected storage
      4. Wipe->Factory reset!
      5. Boot out of recovery (see FAQ)
      3
      Merged commits not mentioned in the changelog.

      13.7. changelog:

      • add ir-keytable tool to configure IR remotes
      • enable USB gadget support & fix adb toggle in developer options
      • add support for storage devices with exFAT filesystem
      • hide su binary when root access is not enabled in developer options
      • add support for PCM512x audio DACs (tested with Hifiberry DAC+)
      • improve support for Waveshare HDMI touchscreens
      • fix recording videos with camcorder
      • add TWRP flashable zip to resize data partition (see FAQ)
      • update TWRP to 3.3.1-1
      • update to MESA 20.1.3 and latest upstream versions of minigbm gralloc, drm_hwcomposer, and libdrm
      • update to Linux 4.19.132 kernel and patch known vulnerabilities (CVE-xxxx-xxxx, and more)
      • Android security patch level: 5 July 2020 (merged)

      7.2. 2020 changelog:
      • add camera HAL to support Pi camera modules and USB webcams (thanks to Android-x86)
      • update to MESA 19.3.3 and latest upstream versions of minigbm gralloc, drm_hwcomposer, and libdrm
      • enable hardware overlays (improves graphics performance)
      • add option to switch to SwiftShader software renderer e.g. to use official 7” touchscreen or to boot without any display connected (see FAQ)
      • fix portrait apps on forced landscape orientation (thanks to Ladehunter)
      • update GPS HAL
      • option to use DIY hardware power button to boot to TWRP recovery (see FAQ)
      • initial support for IR modules and remotes (tested with TSOP4838)
      • update to Linux 4.19.102 kernel and patch known vulnerabilities (CVE-xxxx-xxxx, and more)
      • Android security patch level: 5 January 2020 (merged)

      22.12. changelog:
      • update to MESA 19.3.1 and latest upstream versions of minigbm gralloc, drm_hwcomposer, and libdrm
      • set default resolution using a configuration file (see FAQ)
      • add vendor init library to set serial number, revision, and resolution properties
      • add health HAL to fake battery/charging
      • add script to enable audio through 3.5mm jack (see FAQ)
      • add initial support for RTC hardware (tested with DS3231)
      • update to Linux 4.14.160 kernel and patch known vulnerabilities (CVE-xxxx-xxxx, and more)
      • Android security patch level: 5 December 2019 (merged)

      27.6. changelog:
      • initial LineageOS 16.0 build
      • hardware accelerated graphics (thanks to brobwind for putting the final pieces together)
        • VC4 using Mesa 19.1 with drm_hwcomposer & minigbm gralloc
      • fix bluetooth on Pi 3 B+ (thanks to brobwind)
      • add initial support for booting from USB devices (see FAQ)
      • add support for DIY hardware power button (see FAQ)
      • update TWRP to 3.3.1-0
      • update to Linux 4.14.129 kernel and patch known vulnerabilities (CVE-xxxx-xxxx, and more)
      • Android security patch level: 5 June 2019 (merged)

      Previous builds:
      2
      Nice! I like seeing stuff like this for the pi. I remember having so much fun tinkering with building the oreo lineage15.1 rpi3 stuff a bit ago. Also, I heard something about someone trying to sell your builds of lineage for pie, so will the lineage-16.0 branch for some of the files on the github page for this not be released to the public? Either way, I appreciate your work a lot and hope you can continue as these are amazing!

      Wasn't trying - was and still is selling builds for $9! Nothing but builds from lineage-rpi sources with some apps bundled in. It was even promoted on Pi Foundation's own MagPi Magazine as his work and the article was brought to my attention. I spent _a lot_ of time on this last fall but couldn't really get anywhere. You can read about it e.g. here and here.

      What makes this very problematic for Exton is that he is not complying with GPLv2 that Linux kernel is licensed under. GPLv2 obligates anyone distributing a binary to release a complete corresponding source code. Even if the only modification you make is stick your own name on other people's work...

      That is exactly why I haven't published lineage-16.0 branches apart from the Linux kernel (https://github.com/lineage-rpi/android_kernel_brcm_rpi3/tree/lineage-16.0) as that is naturally also my legal obligation. You can't do Android with just the Linux kernel source, though. I was thinking about putting up a private GitLab project where I could share the source code with reputable developers who actually have some ideas how they want to improve what is already available. I know some companies are you using my previous LineageOS builds which is why I've licensed some stuff under non-commercial license in this one. They've been asking for private tech support but I still can't get as much as a donation even when promised. :(
      2
      New build.

      lineage-16.0-20191222-UNOFFICIAL-KonstaKANG-rpi3.zip
      https://www.androidfilehost.com/?fid=4349826312261681719
      md5:956962b364583917b47046ef8556db85

      -update to MESA 19.3 and latest upstream versions of minigbm gralloc, drm_hwcomposer, and libdrm
      -set default resolution using a configuration file (see FAQ)
      -add vendor init library to set serial number, revision, and resolution properties
      -add health HAL to fake battery/charging
      -add script to enable audio through 3.5mm jack (see FAQ)
      -add initial support for RTC hardware (tested with DS3231)
      -update to Linux 4.14.160 kernel and patch known vulnerabilities (CVE-xxxx-xxxx, and more)
      -Android security patch level: 5 December 2019 (merged)
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