I'm running a BBB with a very recent image (details below) with an HDMI touchscreen connected. Everything is setup and working very well, but between the kernel, OS, and Application startup there's a solid minute before anything appears on the screen. I'm looking into optimizing this at a later date, but in the meantime I'm searching around to see if anyone has successfully gotten U-Boot to throw a splash image over the HDMI output without much luck. I've successfully bitbanged the GPIO via UBoot to do something similar on a two line LCD display, and see a ton of info on doing this with a normal LCD screen, but haven't seen much as far as actual HDMI.
I grabbed the latest U-Boot and successfully built it from source in the event I need to actually hack it apart to get it to work, *but I'm just looking for any guidance on where to start with that process, or if anyone has actually successfully done it*? *Environment:* BeagleBone Black Linux beaglebone 4.4.30-ti-r64 Debian GNU/Linux 8 (jessie)" U-Boot 2016.11-rc3-00002-g73df7f7 (Nov 04 2016 - 15:20:36 -0500) arm-linux-gnueabihf-gcc (Linaro GCC 6.1-2016.08) 6.1.1 20160711 GNU ld (Linaro_Binutils-2016.08) 184.108.40.20660829 -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/003fc19c-4179-46c5-8abd-9d80e1b727d7%40googlegroups.com.