DLP2000: Disable BBB video buffer?

Michael Ascenzi

Part Number: DLP2000

I'm not entirely sure I'm on the right track. However, I'm working with Kyle Rakos Structured_light code. What I'm seeing is this. When I run the software the Linux desktop is intermittently loading up between frames I load onto the DMD. The slower I run the software the more likely the desktop forces its way in.

Am I off base thinking between the time I unfreeze the buffer and the next time the software freezes the update buffer the desktop has pushed its own frame onto the buffer? Is there a way to disable the desktop output, so that the buffer only loads what I provide it?

I do not need the desktop at all.

over 5 years ago

0 Kyle Rakos over 5 years ago

TI__Mastermind 20045 points

Hi Michael,

I think you may be able to kill the X-server. If I recall there is some reference to this in the code (although it's unfortunately been a bit of time since I've written/used the code). If the x-server is removed the desktop shouldn't load and you can simply write to the frame buffer. If that doesn't work could you upload a short video of the problem?

Thanks,
Kyle

0 Michael Ascenzi over 5 years ago in reply to Kyle Rakos

Intellectual 540 points

Kyle,

Thank you. I knew I needed to disable the window manager some how. I couldn't seem to find that, but of course it was sitting right in front of me in the code. The label server threw me.

Again thank you for your time and support.

0 Kyle Rakos over 5 years ago in reply to Michael Ascenzi

TI__Mastermind 20045 points

Glad you were able to figure it out!

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DLP2000: Disable BBB video buffer?