On 28/09/2020 09:41, Arnaud Patard (Rtp) wrote:
Here, it's set to 1920x1080, and I have CONFIG_DISPLAY_ROCKCHIP_HDMI disabled, since there's no HDMI output on the PBP. Can you try with the screen size set to the one of your panel and disable the HDMI output ? I suspect it won't change anything, but worth trying.
Disabling DISPLAY_ROCKCHIP_HDMI (and those other than EDP) didn't change anything with 2400x1600.
(What I was saying is if someone in the future enables it on PBP, the eDP would likely break; but maybe that already happens with the existing code in non-rk3399 devices. A minor issue, though.)
I see that you've added the needed rockchip,panel properties, so it's possible it's related to the driver but I'm surprised that the blacklight turns off. iirc, the driver is only turning it on.
FWIW, commenting out panel_enable_backlight() in rk_edp.c or adding a panel_set_backlight() after that call didn't get the backlight to stop turning off or get it turned on before my loop in board_late_init(). Weird.
Some logs would be nice. If USB is working or if the laptop has ethernet, maybe you could try netconsole (doc/README.NetConsole) with CONSOLE_MUX. I've not used that for ages, but there's no reason for it to be broken.
It doesn't have ethernet, I don't think USB works either -- assuming you mean I'd use a USB-to-Ethernet adapter.
btw, I'm not sure what's the current practice in uboot m-l, but maybe we can go on debugging your issue off-list ?
Sure. At least, I guess most of it would be spam-ish to the people already in Cc.