[Interest] Qt5.6.1 16-bit color on Raspberry Pi 3

Joshua Grauman jnfo-c at grauman.com
Wed Sep 14 01:22:52 CEST 2016


Hello,

I have been working for hours trying to figure out how to get 24 or 32-bit 
color on my Raspberry Pi 3. Currently, Qt is running at 16-bit color and 
everything is dithered and looks terrible. As far as I can tell, X and the 
framebuffer are both running at 24 bit and I think it is only Qt running 
at 16 bit. I compiled Qt myself (twice) natively on the Raspberry Pi 
trying different options, and I have the same results. I used the EGLFS 
for Raspberry Pi plugin on one compile, and another ran directly on X. I'm 
running Ubuntu Mate 16.04.1 LTS. Is it necessary to compile Qt for 24-bit 
color? What compile options affect this? Are there commandline options 
that can for 24-bit? Thanks for any info on how to get out of 16-bit 
color!

Josh



More information about the Interest mailing list