Hello, I have been researching the possibility to run Qt Quick 2 applications directly on BeagleBoard Black rev. C with the display connected to HDMI. In the process I have put together instructions to get OpenGL ES acceleration working (which is a required by Qt Quick 2). I am posting them here in the hope that they can be useful to someone.
Regarding my experiments, the HDMI port worked with 2 monitors out of 4 I have tried - disappointing. Qt Quick 2 was impossibly slow using software rendering under X in 24bpp mode. I couldn't get it to run in 16bpp mode; it displayed this error: Cant find EGLConfig, returning null config Unable to find an X11 visual which matches EGL config 0 Could not initialize OpenGL It worked ok in fullscreen mode (EGLFS) after installing the drivers. ================================================== 3 steps to get hardware OpenGL ES acceleration on BeagleBone Black running Debian (tested 2015-10 on wheezy, jessie and sid). Note that after following the steps you will be able to run a single fullscreen OpenGL ES application (e.g. Qt Quick 2 in EGLFS mode) and nothing else, meaning: * 3D acceleration in X server doesn't work on BBB and apparently won't work anytime in the future * Wayland can run with accelerating compositing (window drawing handled by the GPU chip), but starting OpenGL applications won't work. For this to work the graphics driver must have built-in Wayland support, exposing the EGL_EXT_platform_wayland EGL extension. Robert Nelson mentioned on IRC that TI is working on this and progress can be followed here: http://git.ti.com/gitweb/?p=graphics/omap5-sgx-ddk-um-linux.git;a=summary 1. First pick a kernel version from this list of kernel modules for the GPU (the packages are from the http://repos.rcn-ee.com/debian/ repo): $ apt-cache search ti-sgx-es8-modules Then install the kernel together with the modules. For example, if you picked ti-sgx-es8-modules-3.14.54-ti-r77, run: $ apt-get install -y {ti-sgx-es8-modules,linux-image,linux-firmware-image}-3.14.54-ti-r77 2. On an x86 Linux computer run this (an x86 host is needed because an x86 binary installer from TI will be unpacked): $ git clone https://github.com/RobertCNelson/ti-linux-kernel-dev.git $ cd ti-linux-kernel-dev $ ./sgx_create_package.sh $ scp deploy/GFX_*_es8.x.tar.gz <address_to_your_bbb>:/tmp/ 3. Now install the utilities on your BBB and reboot: $ cd / $ sudo tar zxf /tmp/GFX_*_es8.x.tar.gz $ sudo /opt/gfxinstall/sgx-install.sh Qt Quick 2 fullscreen programs can be launched from the terminal or within Wayland by exporting these variables: $ export QT_QPA_PLATFORM=eglfs $ export QT_QPA_EVDEV_KEYBOARD_PARAMETERS="grab=1" $ export QT_QPA_EVDEV_MOUSE_PARAMETERS="grab=1" Wayland with accelerated compositing (but without the possibility to launch windowed OpenGL programs) can be run like this: $ weston-launch -- --backend=fbdev-backend.so --use-gl -- 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.
