I think it does not has anything to do with bare metal programming/available computing power but with the HDMI chip. According to http://elinux.org/Beagleboard:BeagleBoneBlack_HDMI#Supported_Resolutions 1920x1080@60 Hz is not possible.
Am Samstag, 14. November 2015 14:35:23 UTC+1 schrieb fox lin: > > Deay Guys: > > These days, I encounter a struggle question which is in BBB bare metal > display! > > Following are my condition and question: > > 1. I design a raster display for mobile LCM which work in 800x1200@60Hz. > (In bare metal) > --> I use TTL 24Bits (RGB) + Hsync + Vsync + PCLK + DE for display > timing. > --> I write several pattern on the LCM and it works normally. > > 2. Today, I got a 1080x1920 LCM and just want to light on it. But the > screen is abnormal. > But I reduce the resolution to 960x1920 and display is success! > > 3. Is that the DMA size mis-match? If is so...How to modify it? Some body > could guide to me? > or > BBB NOT support resolution which exceed 960x1920? > > Have a nice day~ > > > -- 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/d/optout.
