Messages

Nice intuition! Thank you. Changing my patchbay to match yours did the trick. No more error messages and it's running smoothly.

I'm using kamal's fork. https://github.com/kamalmostafa/openlase On the current linux mint. I haven't added any code, yet. Here are windows for my jack audio connections, patch bay, and system info.

Hi,
In the app "Output," certain things get a response such as toggling output on/off. This works without errors.
Others print errors to the terminal such as these and do not effect the running system:

(output:3622): Gtk-CRITICAL **: IA__gtk_widget_get_direction: assertion 'GTK_IS_WIDGET (widget)' failed

(output:3622): Gtk-CRITICAL **: IA__gtk_widget_get_direction: assertion 'GTK_IS_WIDGET (widget)' failed

For example, my setup just uses a green laser. So in default the image is only on 1/3 of the time as it is set to cycle colors. When I try to change the laser to only G through selecting that option, or de-selecting the boxes for the R and B lasers, I'm getting these errors.

I wondered if it might be a hardware error but I fired up the simulator, and wasn't able to get the image to stay on in the simulator either.

Any clue what's going on?

Thank you!

Ok, thanks, I will try playilda again.

Hey ./sajmple the last few days which has been a total blast. (Only the pods for size, servo/gain, overshot & undershot damping, start them all at zero except overshot turned a few times.) But I'd elly like to use the ilda test to get it sharper. Is there any way openlase can play that? I tried playilda and it said it was playing and resampled it but unfortunately it looks like a multiple frame thing. Is there another way to tune my galvos? Thanks!
Finley

Hi, yea I tried both the lase_demo by marcan and simple. It's possible I may have bumped the galvos by accident moving them around, but I don't see anything loose or obviously missing. I might be able to get @30 galvos by Friday which would fit my needs. Tonight I am going to keep looking at the @20 galvos, I probably won't run them past 25 or not at all to be safe. Agreeing with Stimpy I tried different settings and the 'live memory' (I'm on my phone so I can't look) checkbox bu it was the same. I made a few attempts when I was in the terminal to guess my username to add to the permissions for audio server and being live or something, but I don't see how that would effect it. I'm going to test the other galvos more tonight to rule out a problem with the software or linux- I've never booted from vmlinuz (virtual kernal, I can't boot from the hard drive.) it's looking good though I have to @20 galvos. I'm also going to research scripting linux to run examples together on their own and some other things. That's a good suggestion I will try to find a voltage meter. I'll keep looking at the jack settings too.

Does anybody know- if I fried my galvos by leaving them plugged in when I didnt use them, could I get another power supply? Would that fix it?

I think I am going to overclock my @20at galvos to perform like the @30 galvos, and choose an aspect ratio that's a little smaller than the square. Or could I use the @30 galvos with the @20 chip, or are the @30 chip and galvos fried?

Thanks for the suggestion! As it turns out, I did fry the galvos somehow. It must have been leaving them plugged into the wall when I wasn't using them. I have a spare galvo set around here I was saving for planning to do an instructable/tutorial of sorts so I went to radioshack and got a power cable and swapped them out for my old galvo's.... problem solved! These galvos aren't rated as high as the ones I was using, but at least it works!

If I left my galvos plugged in to power when I wasn't running them would that have fried them?

Thanks! I haven't tweaked anything and I tried lower sample rates, I didn't see any changes. I've never had the sample rate higher than my galvos are rated. The output is still really large and crazy wobbly. I can make the square smaller or use an aspect ratio in output but the lines are still messed up. I'm trying to install linux on a borrowed laptop right now to see if it will work on that.

*the linux install is not working on the other laptop. And tbh I felt like the gui of everything was a little different this time, like the grid on output was bigger, the buttons seemed a little sharper on the corners than before, it was strange. I don't know if this could mean anything?

Hi, I'm not sure if I need to change openlase or the lasershark or what, but when I was messing around with playilda I really corrupted my packages and linux. After trying to reinstall linux about 8 times I finally have a version of mint, except this time I am booting up from something that's like /vmlinuz (the only install of linux i could get to work this time was using ubiquity -b to install)   and I don't know if this has to do with that either.

But I've tried compiling the forks by marcan & kamal and for both of them the lines of my laserprojector are extremely wobbly and far apart.

The projector is covering a much bigger area than before, and I think the galvos are louder than before. Do I need to reset something? I've spent days just trying to reinstall to get to this point and I need to be able to demonstrate this tomorrow to get the safety ok from my school. Thanks!

All right, thanks so much for the reply! I appreciate it.

*update:
I'm still trying to figure out what this means, but the problem is referenced either here in the install directions, or it's impossible because I found a changelog by Kamal that said he modified the install to work if libavresample is not available.

The following are needed to allow everything to compile.. hmm looks like the cmake scripts should be updated to look for these dependencies:

sudo apt-get install libavformat-dev libavdevice-dev

*




Hi, I know I've been coming here a lot but thanks for your help.
I'd like to get playvid running, and when I perform 'cmake ..' in the build directory of openlase, I'm told it won't compile because of something about libavresample being unknown. I'll attach the terminal output.

Code Select Expand

-- Found FFMPEG: /usr/lib/x86_64-linux-gnu/libavcodec.so;/usr/lib/x86_64-linux-gnu/libavformat.so;/usr/lib/x86_64-linux-gnu/libavutil.so;/usr/lib/x86_64-linux-gnu/libavdevice.so /usr/include
CMake Warning at CMakeLists.txt:36 (find_package):
  By not providing "Findlibavresample.cmake" in CMAKE_MODULE_PATH this
  project has asked CMake to find a package configuration file provided by
  "libavresample", but CMake did not find one.

  Could not find a package configuration file provided by "libavresample"
  with any of the following names:

    libavresampleConfig.cmake
    libavresample-config.cmake

  Add the installation prefix of "libavresample" to CMAKE_PREFIX_PATH or set
  "libavresample_DIR" to a directory containing one of the above files.  If
  "libavresample" provides a separate development package or SDK, be sure it
  has been installed.


-- Will build tracer (SSE2 version)
-- Will NOT build playvid (FFmpeg or libavresample or tracer missing)
-- Will NOT build qplayvid (Qt4 or FFmpeg or libavresample or tracer missing)
I don't know if it's related but there's a thread about libavresample in the comments here-
"I see now that once ‘libavresample-dev’ is installed, other packages are then marked for update. Doing an update, either through the Update Manager or by ‘aptitude dist-upgrade’, etc., will then insist on uninstalling ‘libavresample-dev’ because of dependency issues. Ouch"
http://blog.linuxmint.com/?p=2571

I did my software updates and searched the synaptic package manager for libav and installed everything that looked relevant. Then I downloaded version of libav 9.12 from the web and dragged a folder from there called libavresample to /usr/include (this is a place where some folders with libav in them are) and tried that but nothing worked. I removed the folder when it didn't work.

also is there any easy reference for to replicate the tunnels marcan used towards the end of his demo?

Thanks!
Finley

Sounds good. Thanks!

Thanks so much for the help! Im really luck you keep helping me. Thank you. It's playing ilda files now. It only seems to be playing the beginning of the ilda files I download though, for instance, in the "hands.ilda" file here:
http://lasergraffiti.weebly.com/rgb-laser-ild-animation-downloads.html
It loads the hands but and continues to draw them but they never rotate. Or in "austday2.ild" it will draw the kangaroo but it never jumps.

I only have one laser color, that I selected in the output app... this wouldn't effect it would it? Is this just how playilda is now do you think?

Thanks,
Finley