More Raspberries were made, and the usability of QLC+ on Xorg started to become interesting, for example on a Raspberry Pi 3.Р”Р„s you probably know, the RPi is based on a Broadcom chipset, which has a graphics processor called VideoCore IV (VC4).

I didn't even consider running QLC+ on a Xorg desktop enviroment (like on a regular Linux PC) cause that would have meant to wait minutes before seeing any DMX running.Р”В«eing QLC+ a desktop application though, my goal was to show up the interface in as less time as possible. I have 15+ years of embedded development experience, so I know every bit counts on limited devices, therefore I decided to go straight to the point by opting for EGLFS, a way to render graphics on a OpenGL surface. When I started to port QLC+ back in 2013 there was only the Raspberry Pi 1 on the market. Short story: Qt on Stretch is broken, and at present I'm not able to provide a solution to run QLC+ on Xorg. Then Stretch came.and ruined (almost) everythingР”Р„s you might already know, QLC+ relies entirely on the Qt framework, so it is essential to have a flawless Qt. Good boot time, small footprint, a single Qt build that did everything we needed (EGLFS without Xorg, XCB with Xorg)

I was pretty happy of the results achieved on Raspbian Jessie.

First and foremost: if you use my image as it is and don't need/plan any customization, you can just ignore the rest of this post.

Qt5 serial port config raspberry pi