Hi John, any updates on this?
Staff had this in testing late last night - like really late. Nothing to report yet. The good news from a troubleshooting perspective is, that it went awry in captivity and lots of eyes were on it.
I’m sure they’ll be at it again today/tonight when their time-zones become active. I’m watching this closely for new patterns and procedures. Hopefully we can capture this and put a few more of these camera obstacles behind us.
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Did they find any cause for the issue?
This is in part to bump the topic that has a staff response… but in scouring the forums I’m seeing a lot of threads that travel down a specific OS, but it appears there is an issue that (for a yet to be determined reason ) has the potential to impact all OS variations, and both “official” and “unofficial?” camera versions.
So I’m trying to get official staff info on the issue – which as best I can tell could be summarized as, “camera works on other OS apps, but only shows a black screen on Lightburn”… I feel like there should be some sort of sticky thread or announcement that compiles these various OS/camera discussions.
I would imagine that there are others that are also stuck with not knowing whether spending a lot of time changing the OS and/or the cost of purchasing an “official” Camera is likely to solve the problem…
And to clarify… I want to help however I can… just hoping that we can get one of the many great features working again. Thanks!
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I’m with you on all of this.
I’m getting a camera shipped out today or tomorrow to work on this as well.
If your camera is working in other apps and not in LightBurn - the next thing to test is the ‘other’ camera driver in LightBurn. Oz had some objection to the one that was offered so he wrote a different one and included it.
If you click Edit then Settings, you’ll see near the File Settings an option for the Camera Capture System. Please test both Custom and Default setups as the drivers offer different compatibility.
Is that a Windows only opton? I don’t see an option in Settings for Camera Capture Settings (just Camera Resolution, View, and Rotate 90) I’m using Lightburn 1.2.01 on Ubuntu 22.04.1 LTS. My cameras and operation are as follows:
Camera 1: Arducam IMX298 – Works in OS/Other Apps, Does Not Work in LIghtburn
Camera 2: Another Arducam, but shows up as ‘USB Camera’ – Works in OS, Does Not Work In LIghtburn
Interestingly, Camera 2 used to work in both the OS and Lightburn. In fact I went through the whole calibration process etc. However, I was having issues with updating Lightburn and other applications and needed to update my OS version. After updating my OS (from 16 LTS to 22 LTS), neither camera works in Lightburn, but both do work in other OS applications.
My best guess based on developer intuition and research (but not definitive evidence) has to do with security changes on the OS that would require LIghtburn to enable security settings in the OS software management settings which allow the user to provide camera access to the application.
I tried using command line options to provide permissions but either that path does not work, or I am applying them wrong, which is completely an option.
All of the above to say … I could try changing LInux OS, or a diferent camera … but based on findings so far, and researching the forum threads … I’m not sure another camera will solve it, and changing OS is a disruptive / time consuming option which also may not resolve it if this issue spans multiple OS, which from the forum threads it appears to.
Apologies for the dissertation, let me know if this should be reposted somewhere else … my initial goal on this thread was to make note that there are several threads on multiple OS, and felt like what was a needed is an umbrella/sticky topic that would look at the “camera works on OS, shows up in Lightburn, but only shows black screen” topic.
Thanks!
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Anymore progress on this John?
Maybe I missed something but my camera still won’t work using the custom camera setting. I’ve gone through the hellscape post and ensured everything was set properly. I’ve also updated to latest lightburn version 1.2.04. What else should I try?
John is there anything else I can do to try and get things working?
Is your Windows up to date?
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Yes I’m on Windows 10 with latest updates.
This may be a virtue of the different camera drivers abilities to speak to the camera. I don’t have one of these 120N cameras on hand personally to verify, however. Are you able to continue with the default camera driver’s results?
The problem with using the “default camera” is that I can’t adjust brightness or exposure settings and the image is completely blown out.
Does your laser have internal lighting? If so, can you turn it off?
A common reason for the camera blowing out is that the honeycomb is very dark, so if that is the dominant thing in view, and you have a small piece of material sitting on it, the camera sees the large dark area and tries to adjust the lighting accordingly, blowing out the material surface. If you dim the lights in the machine that can help, as can putting more material on the bed, evening out the overall exposure.
It does have lighting and I’ve tried it with the lights on high, low, and off. When the lights are on, regardless of brightness, image is blown out and when lights are off the image is too dark to see.
Still no progress???
You’ll need to control the lighting in your workspace in order to calibrate the camera effectively.
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