Headless Photoscan requires GUI on startup?

[william]

Hi,

I am experimenting with running PhotoScan headless using '-r' on the linux command line. It works, but I am getting the following error on startup:

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QXcbConnection: Could not connect to display localhost:10.0
Aborted (core dumped)
I know this is due to PhotoScan (and not my script), because even a simple "Hello, World" script is failing.

I can work around this by using ssh -Y to connect to my linux server, but that only works for the first time photoscan is launched within the run. (I am running within a GNU screen, which means that I am losing my X-window when I detach).

Is there any way to run PhotoScan without such reliance on GUI availability? Or does anyone have any other tips? 

Thanks!

[william]

Within the next five minutes, I solved it. I simply used the accepted answer from https://unix.stackexchange.com/questions/94835/simulate-x-screen to simulate an X-window. Photoscan did not complain. I will update if I find some problem with this solution.

[Alexey Pasumansky]

Hello william,

If you do not require GUI to be started, you can use "-platform offscreen" argument when starting script from the command line:

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./photoscan.sh -platform offscreen -r script.py

[william]

Thanks!