This Project is just straight up broken

[FlyingT]

Raspberry Pi 3B 480x320 GPIO touch screen

This project claims to be made exactly to be run on this hardware, but scaling to the screen just straight up doesnt work. I spend nearly 5 hours with many reinstalls and tried any user-provided "fix" that is suggested here, still wont work.

Sad to see there is no way to make it run properly, going back to TouchUI now. It might be aimed at screen with an higher resolution, but at least its working ..

[mvoss96]

Hi, i have it working on an pi 3b and 480x320 hdmi screen. To scale to the screen i just had to set the correct resolution in raspbian

[gdachs]

@FlyingT nonsense. This project works just fine for me. I use it on an Odroid C2 that is running Ubuntu. Attached is a 5" TFT via HDMI. So maybe your setup is broken and the fact that you tried to fix the problem by reinstalls shows only that you might be not experienced enough to even judge about the state of the project. On Linux there is no need to do any reinstalls to fix problems.

[ursweiss]

Same problem with a 3.5" GPIO attached display, but spent much more time trying to get it to work. And I'm a Linux admin for 20 years. OK, luckily without having to spend much time with X11... 😁

I cannot get it to scale down in any way. Tried fb-turbo, fbcp, different OctoScreen and boot configs (framebuffer, hdmi_cvt options).

Finally tried raspi2fb. I could scale the console down, but as soon i start the OctoScreen service it switches back. After starting the raspi2fb service i do see that it scales down the screen from 800x600 to 480x320 in its service status.

As a test I installed OctoPrint-TFT now, which works with 480x320 displays out of the box and it works fine. But still would like to use OctoScreen.

[x50arm]

I just picked up this touchscreen https://www.amazon.com/gp/product/B07N38B86S/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1 and after hours of reading pieces of information all over the internet I finally have it working. This is my first experience with Raspberry Pi so this may not be the "right" way, but it worked for me. I couldn't find all of this information in one place so I made a reference file.

Install Octopi Flash image to your storage media using "balenaEtcher". Using notepad++ edit the "octopi-wpa-supplicant" file for your wifi settings.

Install storage media and boot up Raspberry Pi
Get IP address of Raspberry Pi and connect to it using "Putty"

Install Octoscreen

Dependencies install:

    Run: 

        sudo apt update

        sudo apt full-upgrade

        sudo apt-get install git build-essential xorg-dev xutils-dev x11proto-dri2-dev

        sudo apt-get install libltdl-dev libtool automake libdrm-dev

        sudo apt-get install libgtk-3-0 xserver-xorg xinit x11-xserver-utils

        git clone https://github.com/ssvb/xf86-video-fbturbo.git

        cd xf86-video-fbturbo

        autoreconf -vi

        ./configure --prefix=/usr

        make

        sudo make install

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

Octoscreen install:

    Follow install instructions on Octoscreen Releases Page

Edit Octoscreen Resolution

    Run:

        sudo nano /etc/octoscreen/config

        Edit OCTOSCREEN RESOLUTION as below:
            OCTOSCREEN_RESOLUTION=800x533

        ctrl-o

        enter

        ctrl-x

Install Touchscreen driver:

Run:

    git clone https://github.com/Elecrow-keen/Elecrow-LCD35.git

    cd Elecrow-LCD35

    sudo ./Elecrow-LCD35

    sudo nano /etc/X11/xorg.conf.d/99-calibration.conf

    Go to the bottom of the text and hit "enter" to create a blank line.
    After that line type in the following lines:
        Section “Device” 
          Identifier “touchscreen”
          Driver “fbdev”
          Option “fbdev” “/dev/fb0”
        EndSection

    ctrl-o

    enter

    ctrl-x

Install fbcp to "clone" the HDMI output:

Run:    
    sudo apt-get -y install cmake

    git clone https://github.com/tasanakorn/rpi-fbcp

    cd rpi-fbcp

    mkdir build

    cd build

    cmake ..

    make

    sudo install fbcp /usr/local/bin/fbcp   

Make fbcp start on every boot:

Run:    
    sudo nano /etc/rc.local

    -> Then, go at the end of file (but before the exit 0 ) and add a line where to find fbcp :

    /usr/local/bin/fbcp &   

    ctrl-o

    enter

    ctrl-x

Activate and setup HDMI:

Run:    
    sudo nano /boot/config.txt

    Uncomment the following and change resolution
        framebuffer_width=800
        framebuffer_height=533

    add line
        hdmi_cvt 800 533 60 6 0 0 0     

    ctrl-o

    enter

    ctrl-x

    sudo reboot

Upon reboot touchscreen should be up and running.

[CorrieDivitt]

I just picked up this touchscreen https://www.amazon.com/gp/product/B07N38B86S/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1 and after hours of reading pieces of information all over the internet I finally have it working. This is my first experience with Raspberry Pi so this may not be the "right" way, but it worked for me. I couldn't find all of this information in one place so I made a reference file.

I just wanted to say @x50arm thank you! I literally spent 10 hours trying different things to get the Octoprint-TFT plugin working and this one. Nothing worked, I tried 4 different sets of instructions and the best I could get was TouchUI working. Your guide actually got things working. I'm not quite sure which part of it was the saving grace but it actually worked. Thank you!!

I was also wondering if there is ever any need to put the API key into the config file?

[x50arm]

I just wanted to say @x50arm thank you! I literally spent 10 hours trying different things to get the Octoprint-TFT plugin working and this one. Nothing worked, I tried 4 different sets of instructions and the best I could get was TouchUI working. Your guide actually got things working. I'm not quite sure which part of it was the saving grace but it actually worked. Thank you!!

I was also wondering if there is ever any need to put the API key into the config file?

Your welcome, I spent many hours figuring this out. Glad it helped you. I did not put the api key in the config. I did however go back and change my resolution to 800x600 to use all of the available area on my display.

[MasterTim17]

hi @x50arm i followed all these helpful steps, but all i ended with is the following screen :(

octoscreen service couldnt be startet because "no screens found". i tried the solution of octoscreen instalation xf86-video-fbtrbo

[x50arm]

hi @x50arm i followed all these helpful steps, but all i ended with is the following screen :(

I’m new to the Raspberry Pi and have no clue what might be causing your problem. Hopefully, someone will chime in that can help you troubleshoot.

[mikekscholz]

@x50arm Having all of the information in one place is strictly forbidden.

[jdeath]

@x50arm

Thanks! Your directions worked. I just had to retype the quotes in the /etc/X11/xorg.conf.d/99-calibration.conf file, because it did not like the forward/backward quotes I got from copy/paste your instructions .

I needed to add (without quotes) "systemctl start octoscreen &" into /etc/rc.local after the "/usr/local/bin/fbcp &" line to ensure it started up correctly

I also edited the service file: /lib/systemd/system/octoscreen.service and changed the way the service worked. It seemed to help with the constant resetting when the printer was off:

RemainAfterExit=no Restart=on-failure RestartSec=5s

I also commented out the disablescreenblank line, as I prefer just touching the corner to wake it up.

I am not sure if these changes are stable, but I'll edit the post if they are not

[clowrey]

I just had to retype the quotes in the /etc/X11/xorg.conf.d/99-calibration.conf file, because it did not like the forward/backward quotes I got from copy/paste your instructions .

That was my problem!!! thanks for noticing the pasted quotes are of an incorrect type..

[ssombra]

I just picked up this touchscreen https://www.amazon.com/gp/product/B07N38B86S/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1 and after hours of reading pieces of information all over the internet I finally have it working. This is my first experience with Raspberry Pi so this may not be the "right" way, but it worked for me. I couldn't find all of this information in one place so I made a reference file.

Install Octopi Flash image to your storage media using "balenaEtcher". Using notepad++ edit the "octopi-wpa-supplicant" file for your wifi settings.

Install storage media and boot up Raspberry Pi
Get IP address of Raspberry Pi and connect to it using "Putty"

Install Touchscreen driver:

Run:

  git clone https://github.com/Elecrow-keen/Elecrow-LCD35.git
  cd Elecrow-LCD35
  sudo ./Elecrow-LCD35
  sudo nano /etc/X11/xorg.conf.d/99-calibration.conf

@x50arm I have the same LCD as yours and having issues following the amazon instructions so I plan to try with your instructions later today. I see that you are using different drivers (Elecrow-LCD35 instead of LCD-show git page) and different LCD (Elecrow-LCD35 instead of MHS35-show) than the recommended in the amazon page, do you think that is the problem with the amazon instructions? or your fix has to do with the dependencies install?

[x50arm]

@ssombra I really couldn’t say. Just posted what worked for me after many hours trying different things.

[ssombra]

@ssombra I really couldn’t say. Just posted what worked for me after many hours trying different things.

@x50arm Thank you very much! it worked! I spent several hours yesterday with no success! I just wish to understand why now works :) but I am a total ignorant on linux. Thanks again

[Vahtera]

I have the same problem, but even @x50arm 's instructions aren't helping. If I leave the line "/usr/local/bin/fbcp &" out of /etc/rc.local, I can see Octoscreen UI, but it is the wrong resolution (ie, I can only see the top left of the UI).

When I add "/usr/local/bin/fbcp &" to the rc.local file (or start fbcp manually from the command line), screen goes to blank black and I can barely see a cursos in the top left corner. No UI, no terminal, nothing.

What am I doing wrong?

[jaburges]

Similar issue - no screen detected (which i'm reading on the screen connected to the pi) how is the OS able to see the screen but octoscreen is not?

This part fixed it for me (i feel like given the number of people with the issue, it may want to be added to instructions?)

sudo apt update

    sudo apt full-upgrade

    sudo apt-get install git build-essential xorg-dev xutils-dev x11proto-dri2-dev

    sudo apt-get install libltdl-dev libtool automake libdrm-dev

    sudo apt-get install libgtk-3-0 xserver-xorg xinit x11-xserver-utils

    git clone https://github.com/ssvb/xf86-video-fbturbo.git

    cd xf86-video-fbturbo

    autoreconf -vi

    ./configure --prefix=/usr

    make

    sudo make install

[CorrieDivitt]

I had a working build and when I recently took an update for touch ui it broke and it can't detect the screen. Not sure if the newest version is incompatible

On Apr. 1, 2020 1:06 p.m., jaburges notifications@github.com wrote:

Similar issue - no screen detected (which i'm reading on the screen connected to the pi) how is the OS able to see the screen but octoscreen is not?

— You are receiving this because you commented. Reply to this email directly, view it on GitHubhttps://github.com/Z-Bolt/OctoScreen/issues/43#issuecomment-607374415, or unsubscribehttps://github.com/notifications/unsubscribe-auth/AGMEZIFYU6GBUQXSFYKSGPLRKNYCVANCNFSM4JCQ67VQ.

[Oleniko1]

I had the same issue with the "No screen detected" error it is not a issue with octoscreen. I found out that in my case it was in /etc/X11/xorg.conf.d/99-calibration.conf the lines that u were supposed to copy to the file made it brake. Section “Device” Identifier “touchscreen” Driver “fbdev” Option “fbdev” “/dev/fb0” EndSection After removing this from the config the "No screen detected" error is gone and octoprint is working just fine

[LengAwaits]

@Oleniko1 Thank you! I was having the same issue as @MasterTim17 and this fixed my problem immediately.

[hrqiang]

@x50arm I follow you instruction. It displays perfectly. However, the touch screen doesn't work. I don't know this fbcp method how the touch actually works. But when I switch to without fbcp, I've no way to get the resolution to 320x480.

[velocentric]

@x50arm thank you for compiling those instructions. It took me a few tries to get it making video. I think the quotes copy function was the main issue. Unfortunately my Waveshare 3.5B V2 is displaying Octoscreen in the wrong colors. It looks exactly like a color negative (all the colors are opposite of what they should be) edit: I installed the Waveshare drivers and it corrected the colors etc.

[abhi911kumar]

I just picked up this touchscreen https://www.amazon.com/gp/product/B07N38B86S/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1 and after hours of reading pieces of information all over the internet I finally have it working. This is my first experience with Raspberry Pi so this may not be the "right" way, but it worked for me. I couldn't find all of this information in one place so I made a reference file.

Install Octopi Flash image to your storage media using "balenaEtcher". Using notepad++ edit the "octopi-wpa-supplicant" file for your wifi settings.

Install storage media and boot up Raspberry Pi
Get IP address of Raspberry Pi and connect to it using "Putty"

Install Octoscreen

Dependencies install:

  Run: 

      sudo apt update

      sudo apt full-upgrade

      sudo apt-get install git build-essential xorg-dev xutils-dev x11proto-dri2-dev

      sudo apt-get install libltdl-dev libtool automake libdrm-dev

      sudo apt-get install libgtk-3-0 xserver-xorg xinit x11-xserver-utils

      git clone https://github.com/ssvb/xf86-video-fbturbo.git

      cd xf86-video-fbturbo

      autoreconf -vi

      ./configure --prefix=/usr

      make

      sudo make install

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

Octoscreen install:

  Follow install instructions on Octoscreen Releases Page

Edit Octoscreen Resolution

  Run:

      sudo nano /etc/octoscreen/config

      Edit OCTOSCREEN RESOLUTION as below:
          OCTOSCREEN_RESOLUTION=800x533

      ctrl-o

      enter

      ctrl-x

Install Touchscreen driver:

Run:

  git clone https://github.com/Elecrow-keen/Elecrow-LCD35.git

  cd Elecrow-LCD35

  sudo ./Elecrow-LCD35

  sudo nano /etc/X11/xorg.conf.d/99-calibration.conf

  Go to the bottom of the text and hit "enter" to create a blank line.
  After that line type in the following lines:
      Section “Device” 
        Identifier “touchscreen”
        Driver “fbdev”
        Option “fbdev” “/dev/fb0”
      EndSection

  ctrl-o

  enter

  ctrl-x

Install fbcp to "clone" the HDMI output:

Run:  
  sudo apt-get -y install cmake

  git clone https://github.com/tasanakorn/rpi-fbcp

  cd rpi-fbcp

  mkdir build

  cd build

  cmake ..

  make

  sudo install fbcp /usr/local/bin/fbcp   

Make fbcp start on every boot:

Run:  
  sudo nano /etc/rc.local

  -> Then, go at the end of file (but before the exit 0 ) and add a line where to find fbcp :

  /usr/local/bin/fbcp &   

  ctrl-o

  enter

  ctrl-x

Activate and setup HDMI:

Run:  
  sudo nano /boot/config.txt

  Uncomment the following and change resolution
      framebuffer_width=800
      framebuffer_height=533

  add line
      hdmi_cvt 800 533 60 6 0 0 0     

  ctrl-o

  enter

  ctrl-x

  sudo reboot

Upon reboot touchscreen should be up and running.

Wonderful. Was struggling for the solution for so long and now your solution had helped. Thank you :1st_place_medal:

[pjratl]

ok I am strugling here I followed @x50arm instructions on boot I see the logo screen flash but the octopus is off to the far right then the screen goes black with a small -- in the top left

any ideas?

[JeffB42]

@FlyingT Is this still an issue? Did you get your display working? Here are some set up guides: https://github.com/Z-Bolt/OctoScreen/wiki/Setting-Up-OctoScreen-and-Your-Display and https://github.com/Z-Bolt/OctoScreen/wiki/Installing-OctoScreen-with-a-3.5%22-480x320-TFT-screen

[FlyingT]

@JeffB42 No, never Just switched to OctoDash, which scaled perfectly out-of-the-box