3.5" GPIO Touchscreen+RPI 3B+and Octoscreen  

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eric.b52
(@eric-b52)
Eminent Member
Posted by: @allen-m2

@eric-b52

Sounds like Octoscreen is not starting up properly.  I did everything through Putty and my home network, no hardware connected to the pi.  Did you get Octopi up and running on the network?  Octoprint should be up and running on your network before you do the Octoscreen install.   You might try re-installing the touchscreen driver.

I set it up the same way so that's good.  I have octopi running prior to this and I can still get to it through a web interface, but the touchscreen on the pi just flashes login screen and goes off.   I'm going to run through the touchscreen driver install again.   I did have a problem with this section of commands:

./configure --prefix=/usr

make

sudo make install

sudo cp xorg.conf /etc/X11/xorg.conf

It kept returning bad command on each one of those. 

Posted : 27/12/2019 10:21 pm
pingu
(@pingu)
Estimable Member

the comand "dmesg" is very powerfull in linux and shows various system errors. helpfull for diagnosis

 

so i want to share my mistahe took me several hours searching, google, configuring: when you swap from gpio port to usb conection for raspberry, then you have to turn the gpio port off in the printers menue..

 

i dont get the hype with octoscreen. everything i can do there (buggy) can i reach from the printers original menue. yes, its a little faster and intuitive with the touchscreen.

i saw various videos and pictures where you saw a webcam preview, and in generall more like the octoprint web page. 

how to solve it? i read something that you can change and mod dthe GUI of octoscreen but i have no clue about it..

webam preview would be very nice and was one of my best arguements for buying the screen, for easy adustment of the cam before leaving home. anyone any idea?

Posted : 28/12/2019 1:41 pm
allen.m2
(@allen-m2)
Estimable Member

@pingu

I’ll check out that command, thanks.

Posted : 28/12/2019 3:10 pm
eric.b52
(@eric-b52)
Eminent Member

So i decided to reinstall octoscreen and I'm getting the following error:

job for octoscreen.service failed because the control process exited with error coade.
See "systemct1 satus octoscreen.service" and "journalct1 -xe" for details.

My display sits at a screen full of command line stuff instead of flashing like it did previously.

Posted : 28/12/2019 5:55 pm
eric.b52
(@eric-b52)
Eminent Member

Well, I think i'm making progress.  I went into the raspi-config and set it to boot to desktop.  When pi rebootts it asked me to select the desktop I wanted.  Octoscreen was there and that's what I selected.  Then it drops to a command line that says octopi login:     Try to enter username/password there and it doesn't type anything.  I've tried 2 different usb keyboards andit will randomly type the first letter of my username but not any other characters.  No way to enter a password that way.

Posted : 28/12/2019 8:35 pm
pingu
(@pingu)
Estimable Member

you should accses the pi via "Putty", an ssh clienet

you need to ensure that the raspberry boots up without password needed into desktop. this can be done via teh raspberry config script

"sudo raspi-config"

you have too look up where exactly, but its in the secound or third layer inside the chapters

then you have to ensure that the windowmanager is used is "octoscreen"

there will be an other one preselected.
if you have luck you can do it either via config script:

"sudo dpkg-reconfigure octoscreen"

this did not worked for me, but i cant remember how i got rid of this problem, it was late in the night yesterday. but i highly think this is your first problem to solve. its cruicial. so try it and tell us how it goes.

also usefull commands during investigation and troubleshooting:
-restart octoscreen daemon:

"sudo systemctl restart octoscreen"

Posted : 29/12/2019 2:17 am
Protoncek
(@protoncek)
Reputable Member

@eric-b52

Did you install video drivers, as suggested? 

https://github.com/ssvb/xf86-video-fbturbo/wiki/Installation

Then this error should go away...

 

And, another advice: DON'T use too long filenames or your screen will shift when you hit "print"...(a known bug, should be addressed in upcoming V2.6).

Posted : 07/01/2020 12:49 pm
allen.m2
(@allen-m2)
Estimable Member

@eric-b52

I worked on a friends and got it running last night.  Even though he also has a 3B+, his boot config file was different from mine.  I didn’t document all the changes I had to make, but would not have been able to get him running without using a Remote Desktop connection in to his computer and compare it to mine.  There was new code for the PI4 that had to be commented out and changes to the HDMI settings.  That may be why you are having issues.

This post was modified 2 months ago by allen.m2
Posted : 09/01/2020 2:28 am
eric.b52
(@eric-b52)
Eminent Member

With everything I've had going on here lately, I haven't had time to do anything with this project in a while.   Hopefully I'll get time to look back into this soon.   Thanks for the replies.  I'll update when I get a chance to look at it again.

Posted : 12/01/2020 9:38 pm
bret.t2
(@bret-t2)
Active Member

I've had an installation of octopi running for a long time on a rpi 3b+ . I wanted to install octoscreen, but ran into a few issues.  First it seems that the very latest kivy doesn't allow python 2.7 usage, so I had to direct it to install kivy 1.10.1.  But later in the directions when running octoscreen for the first time ("python main.py" command), it shows the error:

"from OctoPrint import init_settings

ImportError: No module named OctoPrint"

Any ideas where to start with this one?  I'm stumped.  Thanks.

Posted : 20/01/2020 1:52 am
gswaggerty
(@gswaggerty)
New Member

Hi all,

Great guide!  After deciding to upgrade my screen install was a snap.  Anyway, has anyone had any problems with severe heat creep, leading to clogged extruder and drive gear slippage (filament)?  My upgraded setup consists of a RPi 3b+, OctoPi, and OctoScreen, no plug-ins.  Before I upgraded, I was running RPi Zero W (GPIO), Prusa Print, and a few plug-ins, and I had not been having any problems.  However, I am now 3 failed first prints after the upgrade due to ceat creep.  I am still new to all of this so I am hoping someone has any suggestions, or recommendations to help me out.  Thanks!

Posted : 22/01/2020 9:11 pm
Dave
(@david-w107)
Eminent Member
Posted by: @pingu

i dont get the hype with octoscreen. everything i can do there (buggy) can i reach from the printers original menue. yes, its a little faster and intuitive with the touchscreen.

For me, the touch instability of resistive-touch screens makes TouchUI pretty much unusable. Octoscreen is a touch interface done correctly (native X11 application), and works very well. Don't worry about bugs... they'll get addressed.

Posted : 26/01/2020 4:18 pm
Dave
(@david-w107)
Eminent Member
Posted by: @allen-m2

Here it is up and running.

 

Allen, is that front bezel on thingiverse (or somewhere else), or did you design it and want to share? Doesn't seem to make sense to reinvent the wheel...

Posted : 26/01/2020 4:26 pm
allen.m2
(@allen-m2)
Estimable Member

@david-w107

It’s on Prusaprinters here : https://www.prusaprinters.org/prints/10049-35-gpio-touchscreen-rpi-3b-cover

Posted : 26/01/2020 4:51 pm
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