Octodash not starting / only ratpoison banner

[yduf]

What doesn't work?
the .xinitrc start ratpoison (I see the banner), but that's all.
Octodash does not show. Ratpoisoin banner stay forever

What did you already try?
I changed the last part of .xinitrc to the following:

#!/bin/bash
ratpoison&
/opt/OctoDash/octodash &> octodash.log

Hopping to see an error message.
octodash.log is created but is empty
.ratpoison_history is empty as well.

General Information:
GPIO LCD resolution set to 740x480
Linux octopi 4.19.118-v7+ #1311 SMP Mon Apr 27 14:21:24 BST 2020 armv7

• OctoDash Version 1.5.0 (master)
• OctoPrint version : 1.4.0
• OctoPi version : 0.17.0

The same pi is able to boot successfully in desktop mode on same screen,
when changing raspi-config => B2 autologin to desktop.

Octoprint server is functionnal and can be reached.

Any idea on what I am missing ?

[UnchartedBull]

Please check the troubleshooting guide: https://github.com/UnchartedBull/OctoDash/wiki/Troubleshooting#cannot-open-display-xinit-failing- and report back (especially if it is working on HDMI)

Also what do you mean by banner? The small white thing at the top right? That should normally go away within a few seconds, even if OctoDash isn't starting.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[JNSmith1717]

I'm having the same issue, starts black screen witht he ratpoison at top right then goes to terminal with Xorg X Server error Illegal Instruction xinit: connection to X server lost XIO: fatal IO error 11 (Resource temporaly unavailbel) on X server ":0" after 140 requests (140 known processed) with 0 events remaining. I have tried everything on the troubleshooting and nothing works, this is on a 5in 800x480 HDMI lcd

[JNSmith1717]

also if i run /.xinitrc it says
pi@octopi: $ ~/.xinitrc
xset: unable to open display ":0"
xset: unable to open display ":0"
xset: unable to open display ":0"
Can't open display
Illegal instruction

[JNSmith1717]

OctoPrint version : 1.4.2
OctoPi version : 0.17.0

pi@octopi:~ $ export DISPLAY=:0
pi@octopi:~ $ ratpoison
Can't open display
pi@octopi:~ $ octodash
Illegal instruction
pi@octopi:~ $

[JNSmith1717]

Using v2 octodash

[UnchartedBull]

Are you sure your display is correctly connected and available on port :0. Please check if your display is running on a different number mayber: https://superuser.com/questions/647464/how-to-get-the-display-number-i-was-assigned-by-x

[UnchartedBull]

Seems like you're having the asme issue as reported in #896, please comment over there if you further issues / questions.

[yduf]

Solved

So back to that issue => I was not able to solve it on the original system.
I really think it was an octodash issue, since I was able to boot X11 desktop otherwise (and I had followed every possible trick listed in the FAQ).

So after some time, I decided to try to install Octodash again and see if new version solve the issue.
TLDR: it works now, that's why I am writing this:

New version v2 didn't work either on my original system, but I was able to make the same hardware work by reinstalling everything from scratch:

• Using Octopi 0.17.0
• Octoprint 1.3.12
• Octodash v2.1.2
  And the hardware I am using is a ILI9486,
  with driver taken from waveshare

After the standard installation the screen console work, but there is still an X11 issue, X11 does not find a display,
but this times, adding even more packages: sudo apt install raspberrypi-ui-mods help solved the X11 issue.
Afterwhat Octodash start normally.

For completeness, then I encoutered issue with the touchscreen having the Y-axis inverted, this two link have helped me solved this, the trick being to use an option matrix:

• https://raspberrypi.stackexchange.com/questions/60872/inverted-gpio-touchscreen-using-99-calibration-conf
• https://medium.com/@tengfone/setting-up-raspberry-pi-4-3-5-touch-screen-xpt2046-349e484a7813