Disabled touch keys and stable channel

flohack

Hi there,

I decided to disable the touch keys on the bottom hardware panel since they always wake the device when you don´t want it

Shall we keep the middle button active? I think its okay to keep it but not sure.

I will try to roll out this change to the upcoming OTA-16 when finally S3 Neo will get its stable channel so you dont live as dangerous as I do on devel

kugiigi

@flohack I think you should leave the home button enabled, it's a physical button anyway right? Most devices like MX4 has it enabled. It can be an alternative for opening the app drawer

flohack

@kugiigi Yes I leave it but interestingly, a single click does nothin, I need to quickly double-click and then the drawer opens and closes rapidly Maybe it sends the wrong keybinding. Would need to analyze with someone with an MX4.

Keneda

@kugiigi
yes and it is very usefull on mx4 ^^

@flohack said in Disabled touch keys and stable channel:

Would need to analyze with someone with an MX4.

Depending on what you need i may can help.
But not now as i'm at work

Keneda

@Flohack

?

flohack

@keneda you would need to install the evtest package. And then do the following:

Call evtest
For every listed device, select its number, and then press a few times on the button. If you find the right one, the menu button will signal events. I am interested in which event type that button produces.

Keneda

@flohack said in Disabled touch keys and stable channel:

@keneda you would need to install the evtest package. And then do the following:

Call evtest

For every listed device, select its number, and then press a few times on the button. If you find the right one, the menu button will signal events. I am interested in which event type that button produces.

I can do that, but, as i am a real noob in linux, you may explain :

how to install evtest (and do i need libertine or i have to make file system r/w)
how to "call" evtest

flohack

@kenedaits an extra package you need to install on your device. Best would be if you do this via ssh from your PC:

Find your device´s IP address, e.g. go to the system-settings WiFi page, and see in the details of your WiFi connection
Start ssh if its not started with the internal terminal app: sudo service ssh start
Connect with your favourite ssh client to the IP
Make your rootfs writable: sudo mount / -o remount,rw
Update apt package sources: sudo apt update
Install evtest: sudo apt install evtest

Now you have the tool. To see all input devices type evtest and then you get a list. It will prompt you to select one. Start at the top of the list, work your way all through. After selecting a device press our touch the button and see if you get messages like:

As you can see in my case the device /dev/input/event6 is named uinput-fpc and indeed is the fingerprint reader giving fake keyboard events. You can see its sending KEY_DOWN which is like a cursor keypress on a normal keyboard.

Good Luck!

Moem

@keneda If you haven't used ssh before, this may be helpful: https://docs.ubports.com/en/latest/userguide/advanceduse/ssh.html

Keneda

@flohack i'll do my best ^^

@Moem Right, never used ssh.

Thanks both.

Now i go to work, have a nice day

Keneda

@Flohack Just to tell you i did not give up, i wait for OTA16 to reach my MX4, then i'll save data and try.

By the way, i forgot to ask previously, why is SSH the best?
Can't it works well directly from the MX4?

Moem

@keneda Once you get it set up, SSH is really nice because it lets you use the terminal on your phone, from your computer (laptop or desktop). Real keyboard and everything. So much easier!

ImmyChan

Wait, the hardware buttons do things on Ubuntu Touch? How does that work?

flohack

@immychan basically hardware buttons that are mapped to input devices will emulate a keyboard keypress. There are a multitude of keycodes that can be emitted by hardware buttons.

Lomiri will react on a few of them, and this can of course be tweaked in some way. I am thinking of connecting the hardware button of the Fairphone 2 e.g. to do the same as we know from this device: Open the app drawer.

Keneda

@flohack Sorry for the laaaaaate feedback, here it is, and i hope i did it well (even if i didn't use SSH) ^^

I tested all events, and the touch button only gave me feedback with event1 "mtk-tpd" that handles touchscreen too.
I tried quick and long press that does not the same thing in uTouch, but same result on evtest.

Tell me if you need something else, i'll try to be quicker to answer

flohack

@keneda Alright so it seems its bound to KEY_LEFTMETA which is basically ALT-Key I think right?

Keneda

@flohack said in Disabled touch keys and stable channel:

Alright so it seems its bound to KEY_LEFTMETA which is basically ALT-Key I think right?

Yes it seems, but can't tell if it's alt-key

Did a qwant search https://www.qwant.com/?client=brz-moz&q=KEY_LEFTMETA&t=web but nothing clear about that.

flohack

@keneda No its left windows key ^^

So to summarize, that key should open the launcher we said right?

Keneda

@flohack said in Disabled touch keys and stable channel:

So to summarize, that key should open the launcher we said right?

Yes. To be more precise, with no app opened, it opens app drawer (as app launcher is always on screen), with an app opened, it opens both app launcher and drawer.