[Gta04-owner] [Tinkerphones] Phosh/Librem5 system on a GTA04

H. Nikolaus Schaller hns at goldelico.com
Sun Dec 30 22:46:16 CET 2018

> Am 30.12.2018 um 20:58 schrieb Andreas Kemnade <andreas at kemnade.info>:
> On Sun, 30 Dec 2018 20:06:34 +0100
> "H. Nikolaus Schaller" <hns at goldelico.com> wrote:
>> Hi,
>>> Am 30.12.2018 um 20:02 schrieb Andreas Kemnade <andreas at kemnade.info>:
>>> Hi,
>>> On Sun, 30 Dec 2018 19:20:33 +0100
>>> Mark Müller <markmueller86 at gmail.com> wrote:
>>>> On 2018/12/30 0:07, Andreas Kemnade wrote:
>>>>> adduser purism
>>>>> is important.
>>>> Thanks, that's right - I knew I forgot something... ;-)
>>>>> I started a fresh debian buster using a patched
>>>>> cdebootstrap/libinstaller
>>>>> (see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=904699)
>>>>> Now I am with a non-working touchscreen but screen output.
>>>> Well, touchscreen is working, but there seems to be a bug in
>>>> wlroots/rootston concerning how key presses are handled. I had a lengthy
>>>> test yesterday and a phosh developer helped me a lot. So here's what we
>>>> found so far:
>>>> * "libinput debug-events" shows the touch events for the touch screen
>>>> correctly
>>>> * try starting /usr/lib/wlroots/touch - it's a stand alone touch demo
>>>> for wlroots and needs a tty (f.ex. start it over ssh via "openvt -c 8 --
>>>> /usr/lib/wlroots/touch" while rootston/phosh is not running)
>>>> * you can start a GTK+3 app under X11 directly and you'll see touch
>>>> input working; same app won't work correctly, if you start it directly
>>>> with rootston
>>>> * here's the issue i've found: the position of a touch event is read
>>>> correctly, but only the first touch seems to be correctly recognized as
>>>> a "pressed" event. Every following touch event seems to be categorized
>>>> as a "mouse over".
>> Well, this categorization is done on GUI level. The /dev/input events
>> only know about mouse press/move/release.
>> So it should not even be possible to generate mouse-over events, because
>> there are no position reports between release and press.
>>>> * you can try it with a real mouse on the GTA04 and start the "Calls"
>>>> app in Phosh. When your mouse is over a digit button, the button changes
>>>> it's appearance a bit (="mouse over") and when you click it (="pressed"
>>>> event), it changes as well. Remember how a button in "mouse
>>>> over"/"pressed" state looks like and then try to touch these buttons.
>>>> You'll see a really strange behaviour :D
>>> I attached a keyboard+trackpad. I only come to a pin unlock dialog
>>> (even with the modem having its pin unlocked!). And there seems to
>>> be reception level displayed on the lockscreen.
>>> Anything more I forgot?
>>> needs the purism user be in special groups/have special properties?
>> And does it have a well known default for the password (e.g. for ssh over USB)?
> I personally would block that user for ssh and use another one for it.

Well, yes. But we need something for creating a bootable (plus useable) image
for demonstration purposes. Hardening the system is something for future study
and maybe Phosh will do it differently from how it is done currently. Or will
enforce to choose a new one on first boot.

> I manually created that user, so I gave him a sane password. I never
> thought that PIN=password here.

So I'll try to adduser for the "default" pin Mark has mentioned in the other


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