Linux CNC Pi Display port support?

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11 Mar 2024 17:21 #295658 by GreatCNCTaken
Hello! 

Does Linux CNC support the use of a Pi display through the display ports on a Pi5? I have connected a display with the latest LinuxCNC image but I only get a blank screen. 

Thanks! 

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11 Mar 2024 17:30 #295661 by tommylight
It should, just check what port did you connect the monitor to, one USB C can only do charging, i think, i never used them so do double check that, this is just from reading.

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11 Mar 2024 17:54 #295663 by GreatCNCTaken
I am referring to utilizing the display transceivers on the pi5 with a 7" touch display. Works great with Pi OS. 
Am I missing something? 

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11 Mar 2024 23:17 #295700 by cakeslob
which linuxcnc image is the latest?

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12 Mar 2024 01:35 #295707 by cornholio
I would keep with the RPI OS and install Linuxcnc once booted.

Be aware that Linuxcnc does not have support for SPI as of yet, even tho on the downloads page it says is does.

Oh another thing the Linuxcnc image is a debian based image and is a little different to the mainstream Raspbian OS. The config.txt and cmdline.txt are not in the same folder as per a Raspbian image.

You may have to play around with config.txt as I'm not sure if it has the lines to detect an DSI screen connected. This will need to be edited by hand, can't remember exact location so you will have to hunt around in the /boot directory and sub directories.

www.raspberrypi.com/documentation/comput...ays-and-touchscreens

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12 Mar 2024 06:59 - 12 Mar 2024 19:50 #295719 by elovalvo
In the meantime you can try with the image you find here:

forum.linuxcnc.org/9-installing-linuxcnc...i-5?start=170#295779
Last edit: 12 Mar 2024 19:50 by elovalvo. Reason: Update link

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