so looking at the BBB documentation [image: hdmi.jpg] so these are just the supported resolutions for the BBB correct?
In my case, the EVM would have its default resolution associated with it, which is what the BBB would be set to. Correct? Would changing the resolution via Xrandr have any affect on the image transfer rate from the BBB to the EVM? I don't have access to the BBB & EVM at the moment. At the office. or else I would try it. I'll try to head into the office tomorrow. Speaking with the guys over at TI, the EVM is set to a default rate of 60hz based on the data being piped over the parallel video input. They say that the EVM will update at 60hz, but the week link is the speed at which the BBB can load and push the image files over the parrallel video input. right now we have an oscilloscope connected to the vsync pin of the gpio on the BBB. Which is part of the parrellel video input. We assumed that the BBB was working at 24hz cause of what we were seeing on the scope. This is our suspicion because when we measured VSYNC directly on the beagle using the P8 expansion header (pin 27 lcd_vsync) and an oscilloscope we measured 23.6 Hz (basically round up and its 24 Hz). Any thoughts? Michael On Tuesday, March 24, 2020 at 10:40:18 PM UTC-4, RobertCNelson wrote: > > > > On Tue, Mar 24, 2020, 9:32 PM Michael Ascenzi <[email protected] > <javascript:>> wrote: > >> Robert, >> >> So I'm not actually connecting an HDMI to the BBB. The EVM is a projector >> cape that we have sitting ontop of the BBB. >> >> So if nothings plugged in, as you said, it would use a small old >> framebruffer. So the question is does that old framebruffer have a default >> resolution with a transfer speed? or can it be adjusted? >> > > > I thought that was the case, but was confused when you stated. > > 1920x1080 @24hz > > Which isn't the true case, it's running the resolution of the projector.. > > Regards, > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/b865cbbf-7acf-4a1e-b94d-e52aab6c4980%40googlegroups.com.
