Hey Anyone, I am trying to get the H43 lcd going with the nanopi I've followed the instructions here: http://wiki.friendlyarm.com/wiki/index.php/NanoPi#Connect_TFT_LCD The lcd backlight comes on but there is nothing on the screen. . /usr/bin/setqt4env The touch is responding. Nothing on the screen. I added lcd=H43 to the bootargs. I see when I run dmesg mini2440 H43 Selected, so the bootargs are being seen. Not sure if it matters but the Lcd is LCD-H43i-1134
If you connect your NanoPi to a PC host via a mini USB cable its power may not be enough and you will need to connect an additional 5V 2A power to the board's GPIO's VDD_5V and DGND;
Thanks for the reply. I am powering the board via the the mini usb but it is not plugged into my computer but instead I plug it into an ac adapter that is rated to 2.1A. It is a rapid charger. So power is not the issue. I also hooked up a power supply 5v and ground. This changed nothing. I know the lcd itself is good. I hooked it up to my friendly arm mini210s and it came up without any problem. Any troubleshooting tips for this would be appreciated.
I am having the same problem using NanoPi 2 Fire and H43 (LCD-H43 V1.2 1608). I'm booting the standard debian image for HDMI/LCD output but don't see any output on the LCD other than all white. U-Boot shows "LCD = N/A (14)" when I connect the LCD and "LCD = N/A (-1)" when I disconnect it, so I think the connection is fine. Also the board is powered from supply rated 5V @ 2.1A. Were you able to solve your problem? What did you do?