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Comment by crcastle | Hacker News Reader

Doesn't seem to be working for me. I'm on OSX 10.10 public beta 3. Here is what I see when I hit the low E on my guitar: http://cl.ly/image/2E3d0w2D3I1u

The note changes to E, but am I supposed to see something in the black area?

Not sure if it's related, but when I open the application I get a bunch of these messages in Console.app

9/21/14 6:40:06.000 PM kernel[0]: Sandbox: appleeventsd(31) deny file-read-metadata /Library

And several of these

9/21/14 6:40:06.000 PM kernel[0]: Sandbox: appleeventsd(31) deny mach-lookup com.apple.ocspd

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Thank you so much for reporting this. The black area is supposed to display a pattern. It is implemented with OpenGL and CVDisplayLink. Apparently, it doesn't work on some machines (the display is black), but I tried on several and could never replicate it. I do not know if the console messages are related. Could you try running the binary from terminal and see if it prints out an error message?

I don't see anything when running it from the command line :(

http://cl.ly/image/3u3X24292e12

Can I give you anything else to help you repro it?

Oh, that sucks :/ So far, my best guess is that it is a graphic/driver issue. Can you send me your specs, processor, graphic card, that kind of thing? Maybe I can find a similar machine somewhere to debug on. Btw, thank you for taking the time to run it from terminal, I really appreciate it.

Maybe retina-related? It's the 2.3GHz version here http://support.apple.com/kb/SP653

Not retina, I have one (Retina, 13-inch, Late 2013) at work and it runs fine. Might be something processor or thread-related. I'll change cvdisplaylink to nstimer and send you a link to try out that version. Might also disable all the optimizations and we can try that as well.

Not sure if you are going to see this, but I couldn't find your contact details. I whipped up two different versions that might work, one is with different build options and the other uses nstimer instead of cvdisplaylink to animate the display.

http://strobie-app.com/downloads/1.0_beta/Strobie-Beta-nstim...

http://strobie-app.com/downloads/1.0_beta/Strobie-Beta-o2.zi...

Let me know if any of them work. Thank you!

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