*Environment*:
- Linux beaglebone 4.4.30-ti-r64 #1 SMP Fri Nov 4 21:23:33 UTC 2016 armv7l GNU/Linux - Debian GNU/Linux 8 (jessie) I'm attempting to setup a TFT LCD display connected to a BeagleBoneBlack RevC using just the framebuffer via Qt 5.12.3. I can't for the life of me figure out WHY the Qt application and/or the framebuffer is inverting my application's GUI though. I have looked into setting /sys/class/graphics/fb0 invert and rotate but they're seemingly not supported, or simply don't make any difference in my case. I started by getting the device tree configured for the LCD, which is seemingly working fine, and was pulled from a working build running on a 3.8 kernel, and recompiled. I can cat /dev/urandom > /dev/fb0 and see random noise, and if I let lightdm run, it will display properly as shown here <https://i.stack.imgur.com/pzdnT.png>. I then moved on to compiling and running my application. It runs just fine, but when it displays it displays completely inverted on the x-axis as seen here <https://i.stack.imgur.com/rIzXm.png>. Then, closing the application, and letting lightdm take over again it will also be inverted as seen here <https://i.stack.imgur.com/q20tZ.png>. Any idea what would cause this, or a potential workaround? I tried using X11, using FBDEV to handle /dev/fb0, and then just throwing my application in the xinitrc file, but same result. The only time I've seen it run properly, is if I start the application over ssh and allow it to forward the x-session to my host PC. This was done by accident, but gave me some hope. Any help is appreciated. -- 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/37ecba21-2425-4e87-a23b-ba364d7b8570n%40googlegroups.com.
