I've made my own yocto image for a Udoo neo board using graugans/meta-udoo, in eglfs mode (no X11 / Wayland), following this tutorial : http://wiki.wandboard.org/index.php/Building_Qt5_using_yocto_on_Wandboard Then I developped a simple QT5 application displayed on Udoo's 7" LVDS display. The rendering of my image is not correct. It seems to be displayed in R/G/B/A = 4/4/4/0 instead of 6/6/6/0. How can I specify this values before launchning my application ? Moreover, transparency is not correctely managed on LVDS (but works fine on my PC), could it be a matter with ALPHA value ? I launch my application by running this script : Application logs : Many thanks,
Hi i never had this problem, perhaps an issue with dts for lvds 7 ! If you use the official distribution udoobuntu (or the yocto image build with Graugans), did you have the same problem ?
Hi, Thanks for your answer. I will check my dts file. I ever have tried with official yocto image (https://www.udoo.org/docs-neo/Software_&_Operating_Systems/Yocto.html), but have the same problem. Does UDOOBuntu supports QT5 natively ?
Ok could you try with my build for neo here and let me know (it work fine for me with lvds7 ...) Otherwise, there are a beta version of udoobuntu (16.04 ) that have Qt5 natively here ...
