This is a place to coordinate developers working on dekko2. (It is not the place to discuss individual bugs)

In the good old days we had dekko and it mostly worked ok. At some point a rewrite as dekko2 was deemed necessary. The rewrite was started but not completely finished. In addition the platform has moved on beneath dekko (xenial). Time has gone by and development rate of dekko has dropped.

As of today, there is no working dekko for xenial UT.

Over the last couple weeks I see here and there on various UT telegram channels messages pop up about various people trying to work on dekko. Some wrestling with the build system. Somewhere a test build showed up. Some critical bugs were mentioned (settings, system load). Workarounds and some fixes too. I think it's time to coordinate efforts. So we don't independently solve the same problems multiple times, but instead move forward faster.

So all you dekko2 hackers, speak up below with whatever you do / did on dekko2. What you need help with.

Let's make it happen!

PS: This is not an attempt to hijack the project from the current maintainer @DanChapman . Personally, I think the best future for email on UT would be a Dan maintained dekko2 with a small community of developers cooperating. Dan seems to be on a hiatus right now. Let's see what the future brings.

PPS: If you are not actively developing on dekko, then help us stay focussed by not going off topic here! Maybe you really want to encourage people to work on dekko. Or maybe you are very frustrated because you really need an email client. Well, yes, we know. We all are. Feel free to up (or down) vote posts. Or maybe you want to report an issue or suggest a feature. Then use the bug tracker. Or you just have a question. Then start a new thread or go here https://forums.ubports.com/topic/1750/dekko-0-1-6-beta2-released/1

It is our pleasure to announce the release of Dekko2 for Xenial

You find it in the open-store on your device and at https://open-store.io/dekko2.dekkan

Yes there are still bugs. We know, but it should definitely be good enough to allow you to read and write your emails from UT.

Try it out and feel free to praise or curse us below. Let us know what you think.

Bugtracker is over here: https://gitlab.com/dekkan/dekko/issues
Source code: https://gitlab.com/dekkan/dekko
Dev thread: https://forums.ubports.com/topic/1477/dekko2-developer-community-thread

PS: Yes, patches are welcome

I almost don't dare to ask, but .... Qt update?

Good question. I would hope that some form of regular live news/Q&A show could be maintained.

Just my two cents: I think biweekly is too much. It becomes a big workload for the ppl doing it.

Secondly, whoever might be taking it over - just take it easy. Don't put the bar too high. Dalton is leaving very big boots to fill. It's not necessary to push yourself to try to maintain the same professionalism /quality/frequency/setup... Maybe now is a good moment to go back and re-watch the early episodes as an inspiration what it looks like to start walking, before you get into the jumping up the stairs mode

Pick one (any) convergent user story and make it a perfect experience out of the box.

For example: I receive an email from a coworker asking me to work on some spreadsheet. Dock phone and work desktop style, listening to music on my headphones. Realise I miss some info. Text another person with a question. Receive a phone call interupting me. Take the phone out of the dock and talk while I walk to the coffee shop. End the call and finish the spreadsheet on the phone/tablet interface in the coffee shop. Email the file back.

All those features are kinda there, but there are a bunch of usability features that kill this (and similar) workflows. I would suggest you draft a story like this, then test it and prioritise any bugs you run into. Docking ain't reliable - fix this. Email app closes and interrupts my drafting when switching to browser /spreadsheet - fix that. Out of the box UI scaling for localc doesn't allow me to work efficiently on a tablet display - fix it.

No need to make everything perfect, but pick one story and maybe one device and make that one really shine. If it ain't the "mobile office work" above it could be the visual artist - now you need to make sure that krita works perfectly on the tablet - does taht require better touch input in xmir well then this is your top prio feature. Or maybe its wayland on mir. The user is not gonna care as long as the workflow is awesome.

Pick a story that is achievable, but sets ubports apart from ios/android. Getting krita to run is too hard - what about preparing, adjusting and giving a presentation from the phone including live pdf annotation xournal style.

Make sure to produce a release video that shows off! Focus on the added value for the user instead of the technical feature of how you adjusted the dpi for Xmir or whatever.

I'm trying to get Halium running on the Nexus 7 2013 gsm variant "deb".

I've made a few steps already. Most notably: Plasma Mobile starts!

I'm keeping (and updating while I progress) the summary below, so that:

• I don't forget what steps I took
• Others can help to improve this
• Others can use this as inspiration for their ports

Setup sources

• Follow the Porting Guide for halium-7.1 here https://docs.halium.org
• lineageos kernel sources: https://github.com/LineageOS/android_kernel_google_msm
• my local_manifest: https://gist.github.com/doniks/7ee302c7792450761332d8f8712f29f6
• binaries : https://developers.google.com/android/nexus/drivers MOB30X
• my repo with all kernel changes: https://github.com/doniks/android_kernel_google_msm

Kernel image

config

source build/envsetup.sh 
add_lunch_combo lineage_deb-userdebug
lunch lineage_deb-userdebug

• kernel config: kernel/google/msm/arch/arm/configs/lineageos_flo_defconfig
• Primary source to check for wrong configs: https://github.com/lbt/mer-kernel-check
• my kernel config: https://gist.github.com/doniks/7406a87e5f15e1eab5a64aa90ad8f633
• other config checkers for reference:
  • CONFIG=out/target/product/deb/obj/KERNEL_OBJ/.config lxc-checkconfig
  • https://github.com/janimo/phablet-porting-scripts/blob/master/kernel/check-config

patches

• https://gist.github.com/doniks/75d16dda43d241feb79b721bab6c4940

• https://gist.github.com/doniks/44faf86a23f7467b80744f033fb08100

• add cgroup_disable=memory to the HYBRIS_BOOTIMG_COMMANDLINE in halium/hybris-boot/Android.mk (this fixes some problem with systemd/cgroups, can't remember what exactly )

common porting errors

• Halium Porting Error Knowledge Base
  https://gist.github.com/doniks/2ac14a1bb6750165bf782f62139c8aab#file-gistfile1-txt-L61
• Reference of older kernel versions http://elixir.free-electrons.com/linux/v2.6.39.4/source
• [https://public.etherpad-mozilla.org/p/r.0aae797a3bd13b4cd923b82fe29a2f47](Sailfish HADK FAQ)

test and debug

• Follow steps here http://docs.halium.org/en/latest/porting/debug-build/
• if you want to force init into telnet, add kernel parameter bootmode=debug:

fastboot -c "$(abootimg -i hybris-boot.img | sed -ne '/cmdline/s/. cmdline . //p' ) bootmode=debug" boot hybris-boot.img

Android image

cd halium
mka systemimage
ls -l out/target/product/deb/system.img

Rootfs

Halium rootfs

get it

• https://docs.halium.org/en/latest/porting/install-build/reference-rootfs.html

install it

• to install the rootfs you need working adb. I use this twrp recovery: https://eu.dl.twrp.me/deb/twrp-3.0.2-0-deb.img.html (had some problems with 3.1.1-0)
• boot into twrp recovery

git clone https://github.com/Halium/halium-scripts
./halium-scripts/halium-install halium-rootfs-20170630-151006.tar.gz halium/out/target/product/deb/system.img 

• The device should reboot and get to the point where it announces usb networking:

lsusb -vd 0fce: | grep -i serial
  iSerial                 3 GNU/Linux Device on usb0 10.15.19.82

• reboot into twrp recovery to set the root password

adb shell
cd /data
mkdir mnt
mount rootfs.img mnt/
chroot mnt /bin/bash 
export PATH=/sbin:/bin:/usr/sbin:/usr/bin:$PATH
passwd

connect to it

• reboot the device and wait for usb networking to come up as above
• configure usb network on your desktop in a similar way as above for telnet, but now for ssh

sudo ip address add 10.15.19.1 dev enp0s20f0u7 
sudo ip route add 10.15.19.82 dev enp0s20f0u7

• login via ssh

ssh root@10.15.19.82 

• fix path variable

echo $PATH
/usr/bin:/bin
export PATH=/usr/sbin:/sbin:$PATH
echo 'export PATH=/usr/sbin:/sbin:$PATH' >> /root/.bashrc

what works

• test_lights makes the led breathe
• EGL_PLATFORM=hwcomposer test_hwcomposer shows rotating spiral! I need echo 200 > /sys/class/leds/lcd-backlight/brightness to turn up the display brightness, so I can actually see the spiral
• wifi: http://docs.halium.org/en/latest/porting/debug-build/wifi.html

nmcli d # no wlan0
echo 1 > /dev/wcnss_wlan 
echo sta > /sys/module/wlan/parameters/fwpath 
nmcli d # shows wlan0
nmcli dev wifi # list wifis 
nmcli dev wifi connect <SOMEOPENWIFI>
# or
# sudo nmcli device wifi connect <SOMEENCRYPTEDWIFI> password <PASSWORD>
ping -c 2 8.8.8.8
ping -c 2 debian.org
# install some missing packages
apt update
apt install openssh-client bash-completion command-not-found binutils nano

• buttons: evtest /dev/input/event5
• touchscreen: evtest /dev/input/event0
• adb:
  • TWRP
  • chroot into rootfs
  • systemctl enable adb
• test_egl_config : https://gist.github.com/doniks/4e9ea8a8f5aaf1968c2e42846b5a9158

what doesn't work

• test_audio nothing to hear

ACDB init open file failed
[ACDB Init]->File is not found on the system
[ACDB Init]->ACDB init success!

• test_camera

library "libcamera_compat_layer.so" not found
Segmentation fault

• test_egl segfaults
• test_glesv2 segfault
• test_gps, honestly I don't know whether that output below constitutes success of failure ... since I can't recognise any coordinates, I think it failed. I've waited 5 minutes or so. There are more *** tracking lines but no coordinates

*** setup signal handler
*** get gps interface
*** device info
 id = gps
 name = loc_api GPS Module
 author = Qualcomm USA, Inc.
*** init gps interface
*** set capabilities
capability is 00000007
 ** Creating thread: 'Loc_hal_worker' (start=0xb69f23b5, arg=0x1d02080)
 ** After thread_create: 'Loc_hal_worker', error=0 (start=0xb69f23b5, arg=0x1d02080)
 **** Thread wrapper start (start=0xb69f23b5, arg=0x1d02080) ****
*** setting positioning mode
*** start gps track
*** gps tracking started
*** tracking.... 

• test_input

library "libis_compat_layer.so" not found
Segmentation fault

• test_media, get a video from http://bbb3d.renderfarming.net/download.html

wget http://download.blender.org/peach/bigbuckbunny_movies/big_buck_bunny_480p_surround-fix.avi
wget http://distribution.bbb3d.renderfarming.net/video/mp4/bbb_sunflower_1080p_60fps_normal.mp4
scp bbb_sunflower_1080p_60fps_normal.mp4 root@10.15.19.82:
ssh root@10.15.19.82
test_media bbb_sunflower_1080p_60fps_normal.mp4
library "libmedia_compat_layer.so" not found
Segmentation fault

• test_nfc

Starting test_nfc.
Finding NFC hardware module.
test_nfc: test_nfc.c:156: testNfc: Assertion `hwModule != NULL' failed.
Aborted

• test_recorder

Test application for video recording using the camera
Recording start with volume up button. And stops with volume down.
The result is stored to /root/test_video.avi

library "libcamera_compat_layer.so" not found
Segmentation fault

• test_sensors

library "/system/lib/hw/sensors.oem.so" not found
libsensor_add_waiting_client adding cb 0
Hardware module ID: sensors
Hardware module Name: Qualcomm Sensors Module
Hardware module Author: Qualcomm Inc.
Hardware module API version: 0x1
Hardware HAL API version: 0x100
Poll device version: 0x1000001
API VERSION 0.1 (legacy): 0x1
API VERSION 0.1: 0x65537
API VERSION 1.0: 0x16777217
API VERSION 1.1: 0x16842753
API VERSION 1.2: 0x16908289
API VERSION 1.3: 0x16973825
API VERSION 1.4: 0x17039361
libsensor_add_waiting_client adding cb 1
Got 0 sensors

• test_wifi 1 says :

Cannot load driver (err -1)

not supported

• test_vibrator , segfaults, but anyway the N7 doesn't have a haptic motor to vibrate

Segmentation fault

UBports rootfs

Tried the rootfs from here: http://cdimage.ubports.com/rootfs/ but it doesn't do too much for me:

• screen stays on the Google logo
• no usb iSerial messages
• no usb network interface seems to come up
• last_kmsg shows that systemd does take over http://paste.ubuntu.com/25419054/ however,
• it complains that "systemd[1]: Failed to start LXC Android Config and Container Initialization."
• no adb interface comes up, even though in TWRP/chroot I see that android-tools-adbd.service is enabled

Plasma mobile rootfs

git clone https://github.com/bhush9/rootfs-builder bhush9-rootfs-builder
cd bhush9-rootfs-builder
# follow the instructions in README to patch lb_chroot_live-packages
sudo ./build.sh
# waaaaait
# install it

The reboot takes about a minute. Then you'll hear an audible greeting and afterwards you are greeted by the plasma mobile login screen. You can login and play around a bit. Not much to do though. No network connection and it's not possible to ssh in.

Reboot back into TWRP and chroot.

1. To be able to use the ssh server, you need to generate ssh server keys: dpkg-reconfigure openssh-server
2. Preferably enable password less login :

adb shell mkdir /home/phablet/.ssh
adb push ~/.ssh/id.pub /home/phablet/.ssh/authorized_keys
// todo : some chmod/chown needed?

1. reboot, setup usbnet and then reboot and login as ssh phablet@10.15.19.82
2. Alternatively, you can set the passwords, but I don't do this because it seems to actually break the graphical login:

passwd 
passwd: Authentication token manipulation error
passwd: password unchanged
# fix passwd
apt remove libnss-extrausers
pam-auth-update 
# select everything but extrausers
passwd # set root password 
passwd phablet # set user password

Debian

Haven't tried yet.
https://archive.org/download/halium-debian-rootfs/
https://github.com/JBBgameich/rootfs-builder/tree/debian

Arch

https://github.com/Halium/rootfs-builder/tree/archlinux
https://github.com/mickybart/rootfs-builder/tree/archlinux
Haven't tried yet. I'm not very familiar with arch.

What's next?

• Get ubports to run
• Get PM to run on halium-boot
• Check out LuneOS
• Check out SailfishOS
• Build a .zip file, only makes sense if some OS is remotely usable, PM is close but still not there
• get lxc-attach to work
• patch out the noise dmesg logging of the battery

Any tips or feedback appreciated!

@geekbone said in Talk to the Non-Geek People:

Your user docs... I am not sure who the audience is there

I hear you. I'm laughing and crying a little bit at the same time. Yeah, that "daily use" header is so undeserved it's not funny anymore. And the prominently placed 'container' jargonfest wins an extra prize there.

Well, I could go on to rant about a community project with lots of volunteer work and how that doesn't gel so well with "If you want thisorthat, you should somethingoranother",but let me rather beat that other dead horse:

Contributions welcome!

And I'm not saying this to you @GeekBone . Of course your contributions would be welcome! But I don't think it's fair to bark this to a newcomer first thing. I'm saying this to ... "us" ... those of us who've hung around here for a while.

Maybe there is someone who wants to put together an actual daily use / getting started page. Maybe there is someone who was looking for a low-geek way to contribute. Well, this one we would need! Couple screenshots, swipe here, swipe there, ... settings ... app store ... nothing too geeky. I kinda anticipate that the majority of the volume of the docs will stay geeky, but there should be a 'safe' and welcoming place at the start. A place before we venture down the rabbit hole ....

Oh and of course, the elephant in the room: How's 16.04 coming along?

Dear UBports Community,

this thread is for discussion on any aspect of Libertine Tweak Tool. Suggestions, questions, praises, complaints ...

Links:

• Github
• OpenStore

How big is your head- and heartache after seeing the responses to your thread: Want To Develop UT And Need A Device?

it's fixed now

@homerours sorry, we were trying to fix this, but got held up. in the meantime you can find it in the archive https://web.archive.org/web/20211124001129/https://people.canonical.com/~alextu/tangxi/684.zip

@peter-gamma said in Google Chromecast installation on Ubuntu Touch?:

https://www.linuxuprising.com/2020/04/ho...op-to.html

Broken link

@pulsar33 said in Libertine Tweak Tool:

An issue exists since 3 years !

Mhm, yeah, I could imagine that xmir issues are close towards the end of a long list of other priorities Thanks for sharing the link!

However, my understanding described above is not exactly the same as @dobey or @rodney

@pulsar33 said in Libertine Tweak Tool:

In fact, the dead zone is not dead, there is an offset between the mouse position and the widget grid of the application. And this depends on the Xdpi setting.

It seems to me that there's only a mismatch between the "display grid" and the "mouse grid"

strange. I think my observation matches more closely with the issue you linked

fwiw, it seems to me to be an issue in xmir. when I run cnee --record --mouse in lxterminal, I see that the x coordinate (third column) never goes higher than 1199 on my Nexus 7 (7 inch, 800 x 1280 pixels). thats the same in landscape, portrait, upside down portrait. also in windowed mode. then one can also nicely see that the offset is from the left of the window, not the screen.

another way to check is with xournal

@pulsar33 said in Libertine Tweak Tool:

Ok, I think I can reproduce this

It seems to me that every click or touch in the "dead zone" is interpreted as a click on that red line. So, it is always shifted.

• When I adjust the dpi value so that the imaginary red line falls on highlighting selector ("Texte brut") and then I aim at "INS" the click will land on the "Texte brut"
• When I open a text document full of text and start selecting text, I can move around as I want, except when I move into the "dead zone" then the selection only reaches to the red line and not further to the right.

You say you have no dead zone with 180 - can you describe how you determine that in gedit?

ugh sounds complicated. thanks @pulsar33 for writing this up! do you see a difference in this dead zone / offset behaviour between touch and mouse? I probably need to play with this myself to understand.

btw, speaking of the consumer page https://ubports.com/contact/consumers it has two more stray "j" characters

@pulsar33 do you happen to remember a specific application, device (screen size&resolution) and dpi value that would be handy for retesting?

@pulsar33 said in Gently setup a Libertine container and some applications:

At this time, I don't think that Libertine Tweak Tool is usefull and I suspect that changing the dpi has a bad impact on the sensitivity of widgets in the right part of the screen.

could you elaborate?