Hello, I want to try drawing something on the BBB connected LCD (HDMI) using direct writing to the /dev/fb0. If I do a "cat /dev/urandom > /dev/fb0", nothing changes on the screen.
Google search helps guessing I need to stop the X window system first, and I should use the "init 3" or "gdm stop" to do so. If issuing an "init 3", from the SSH-attached terminal (192.168.7.2), then the connection just hangs. (I have no tty0 console yet) If I use "gdm stop", then I get the "(gdm-binary WARNING ): Could not acquire name; bailing out" message, and nothing happens. So, if I just want to draw anything on the LCD screen (to eventually learn, how to draw my image there), how do I try that on my BBB? Is the /dev/fb0 use the simplest way, and how to get it working (say, to copy file there so that to see the picture change)? Stop X windows server? Or any other idea? Please advise. Thank you very much. (I am pretty new in this area, sorry if this is a trivial question) rgds, sviss -- 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]. For more options, visit https://groups.google.com/groups/opt_out.
