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Messages - KB

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1
Thank you for offering. I installed Linux Mint 17.3 Rosa, then installed ffmpeg via:

sudo add-apt-repository ppa:mc3man/trusty-media
sudo apt-get update
sudo apt-get install ffmpeg

Then I followed the openlase compile steps but ran into  a fatal error:
-------------------------------
/home/efilm-rnd/Desktop/openlase/tools/qplayvid/qplayvid.c:38:38: fatal error: libavresample/avresample.h: No such file or directory
 #include <libavresample/avresample.h>
                                      ^
compilation terminated.
make[2]: *** [tools/qplayvid/CMakeFiles/qplayvid.dir/qplayvid.c.o] Error 1
make[1]: *** [tools/qplayvid/CMakeFiles/qplayvid.dir/all] Error 2
make: *** [all] Error 2
efilm-rnd@efilmrnd-HP ~/Desktop/openlase/build $
-------------------------------
I attached the verbose cmake and make results as a .txt file if that is useful.

Searching for this message online yielded what looks like some qplayvid.c changes by KamalMostafa. I don't understand though if his changes are complete and if I should use his version of qplayvid.c

Thanks again.

KB

2
Thanks for sticking with this thread. The machine has 8GB RAM and a core i5, so I hope it has the power necessary. I have indeed rebooted several times, and I have tried reducing the sample rate to as low as 4k and have tried all available frames/period.

I think I should try again to install Mint and a fresh openlase on this system. In the past there were dependency issues, but I can try again. I'll report here my progress.

Thank you.

KB

3
Ok, no smoking gun yet, here's the setup screenshot:

4
Thank you.
Answers:
1. Ubuntu is running on hardware, no VM
2. yes, your stdin and circlemaker cooperate to draw a circle on my wall.
3. screenshot attached

KB



5
Hi LaserFolks,

Using an HP laptop I tried many Linux distros until I found one where I could solve the dependencies and run on my hardware. In my case it was Ubuntu 14.04 64 bit. When I follow the Openlase and Jack configuration on the Openlase wiki, and run the "simple" example. I get a large morphing "scribble" drawing at 60fps instead of the cubes I should be seeing. I cannot find an error in what I have done but I am obviously missing something. I'd appreciate some guidance so I can graduate from the simulator to using the LaserSharks I bought.  Thank you all for your time.

KB

6
Yeah! This works now on my Win 10-64bit machine. Excellent and thank you.

KB

7
Thank you for your time, maybe most LS users are not Win 10 64 or are Linux?  No, I don't have a means to compile the suggested change. Which I then dislike, leaves the question of asking you to try it, or I find a Visual Studio user to ask, or roll the system back to Win 7, which isn't awesome but it would be a temp solution if no choice.




8
Hi Lasarians,

I updated my machine (intel NUC i3) from Win 7-64bit to Windows 10-64bit. I  reinstalled the Zadig drivers  for LS interfaces 0,1,2. Zadig reports drivers installed successfully. Restarting the machine, and attempt to run the (successful under win7 64) "lasershark_stdin_circlemaker.exe | lasershark_stdin.exe" and the command prompt stalls for a moment and then prints: "Error finding usb device"

In Device Manager the Lasershark interfaces are listed. Unplugging the Lasershark causes them to disappear from Device Manager. So it seems the system sees them.

I'd appreciate some guidance here.

Thank you for your attention.
KB

9
LaserShark Discussion / Driving a low power laser
« on: October 01, 2015, 06:39:53 PM »
Hi, thanks for reading this.

For safer learning purposes I want to use a 3volt laser from a pointer with my LaserShark. With the higher power lasers, a secondary power supply is necessary, with the LS supplying control power only. In the case of my 3volt laser, is this necessary? The connections image indicates a 5v signal is possible, so I'd have to reduce it obviously. Has anyone tried this?

Thank you for your time.

KB


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