Hi, All! I've spent a lot of time trying to bring VGA output on A20 up. But no luck at all. I've managed to configure U-Boot to output to VGA by just enabling hidden line in .config. I know this should be somehow "routed" through Allwinner's DE, BE, FE, TCON, connectors, bridges, panels... Could someone please help or give some hints on how to configure DT? I have a lot of mess there around display engine, tcons, front ends and etc in my DT and I'm out of ideas at the moment.
My kernel is 5.2.21. Ask for any additional information. At the moment I have: [drm] Initialized lima 1.0.0 20190217 for 1c40000.gpu on minor 0 sun4i-drm display-engine: bound 1e00000.display-frontend (ops 0xc085dc28) sun4i-drm display-engine: bound 1e20000.display-frontend (ops 0xc085dc28) sun4i-drm display-engine: bound 1e60000.display-backend (ops 0xc085d2ec) sun4i-drm display-engine: bound 1e40000.display-backend (ops 0xc085d2ec) sun4i-drm display-engine: bound 1c0c000.lcd-controller (ops 0xc085c014) sun4i-drm display-engine: No panel or bridge found... RGB output disabled sun4i-drm display-engine: bound 1c0d000.lcd-controller (ops 0xc085c014) sun4i-drm display-engine: bound 1c16000.hdmi (ops 0xc085e140) sun4i-drm display-engine: bound 1c0a000.tv-encoder (ops 0xc085cbac) [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [drm] No driver support for vblank timestamp query. [drm] Initialized sun4i-drm 1.0.0 20150629 for display-engine on minor 1 sun4i-drm display-engine: fb0: sun4i-drmdrmfb frame buffer device -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/linux-sunxi/e5afed30-84d5-4f19-a0ab-32b8480590ban%40googlegroups.com.
