Game Console R35S R36S¶
Hardware¶
| SoC | CPU | GPU |
|---|---|---|
| Rockchip RK3326 | ARM Cortex-A35 (Quad-core) @ 1.3 GHz | Mali G31 |
| Display | RAM | eMMC | Connectivity |
|---|---|---|---|
| 3.5-inch 640*480 | 1 GB DDR3 | None | None |
Software¶
| Kernel | GPU drivers | Compositor | Interface |
|---|---|---|---|
| Mainline Linux | Panfrost (GL 3.1/GLES 3.1) | Sway | REG-ES |
Emulators¶
Install REG Linux¶
Installation¶
Download the current RK3326 REG Linux image for this device from the REG Linux download page, then follow the steps in the Installation guide.
New displays (R36s of year 2024)¶
Recent R36s have new displays that need some extra actions to work.
The simplest way so far is:
- Determine which panel do you have (or just try every option until it works)
- Download a mipi-panel.dtbo.r36s-panel* there there
- Rename the downloaded file and put it to a boot ( REG Linux ) partition as overlays/mipi-panel.dtbo
These files mostly have just basic refresh rate (77.378 FPS) ( panel4 has 50, 60, 75 because we tested it)
If you have an original .dtb file, you can generate a mipi-panel.dtbo from it. Assuming you have an SSH access and you have scp 'd the original dtb as rk3326-r35s-linux.dtb , the process would be as follows: RK3326:~ # mount -o remount,rw /flash RK3326:~ # mkdir -p /flash/overlays/ RK3326:~ # # ## Be not afraid! importpanel.py may run for a minute or two for some panels RK3326:~ # /usr/libexec/generic-dsi/importpanel.py rk3326-r35s-linux.dtb -O dtbo -o /flash/overlays/mipi-panel.dtbo RK3326:~ # sync ; mount -o remount,ro /flash/ Here we just make an overlays directory writable, then call a script that does all the importing stuff. Feel free to run this script on your PC, modify it and experiment with panel timings.
This script adds a bunch of potentially useful refresh rates, but we have very few knowledge on which modes work well. Please check them with wlr-randr or with game configuration and tell us which modes work with your panel.