Hi guys,
I've got a Beabglebone black unning Linux beaglebone 3.8.13-bone70. I'm 
trying to implement double buffering using virtual screensize, offsets, 
panning and vsync syncronization. However, ioctl calls fail 
because FBIOPUT_VSCREENINFO is not a valid argument. The quick test using 
fbset will provoke the error: 

fbset -vyres 960

As far as i can tell from others with the same issue, on other platforms, 
this is due to a limitation in the video driver, which brings me to my 
question(s):

Has anyone else experienced this and is this a "known" issue? Has this been 
"fixed" in a later version of the video driver? I also noticed that ioctl 
returns -1 on FBIO_WAITFORVSYNC.

Thank you in advance!
Best regards,

Martin

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