Hello all.
I can say that now I'm almost happy owner of the Orange Pi Zero 3 board. It took me weeks of googling to get to this awsome thread. Links from official OPi site lead to outdated images where many things didin't work as expected and with broken graphics acceleration. Finally I found armbian and its latest builds for Orange Pi Zero 3 board with working graphics at least. So, first of all, thanks to all people who contributed to this builds, it's an awsome work.
I'm total noob in Linux, so I can't do much help here, however, if something needs testing with this board (OPi Zero 3, 2Gb RAM) I'll try to help.
Inspite of being able to make my own toy OS for x86 platform I struggle with Linux as it is seems very complex to me so I came here for help or at least right direction.
My current goal with Zero 3 board is to get very minimal Linux build which includes:
- all CPU cores workig and ability to run single graphics application without desktop environment at all
- working 3D acceleration for smooth graphics
- working sound (either built in or through i2s interface, preferably)
- working GPIO/SPI/UART for communicating with other peripherials built with 8-bit MCUs like ATmel 8-bit chips
Currently I'm just learning how to build such kind of Linux images. I've already tried buildroot and "default" build didn't work for me, I guess it is not configured to use HDMI output for terminal by default and I couldn't find how to do that.
I also found sunxi site and as I understood armbian is based on that. I tried to follow their instructions to build uboot and kernel however stuck with some steps and errors, and it's also not very clear if they managed to set up HDMI/Mail graphics working with their builds as some instructions labeled as outdated.
I also tried Bookworm image and it works pretty well, I even set up xorg there and run glgears app for testing it, but it still pretty big to me and there are several issues with running graphical apps without desktop environment.
So, any help on these two topics is very appreciated:
- How to get really minimum build and where to find actual informaton about that kind of builds as there are many tutorials but they seems to be outdated/incomplete or do not cover board specifics.
- How to get single graphics app running fullscreen without desktop environment (for this experiment I can start with Bookworm build)
Thank you.
