I wonder if the pin muxing isn't right. Please check with "raspi-gpio get" that GPIOs 0-27 are all set to alt2 for the DPI function. You can achieve the same as "dtoverlay=dpi24" by doing "gpio=0-27=a2". Yay! That did it! The screen didn't look quite right with that dpi_timing line, but it turns ou...

So dpi_timing=1024 0 40 104 144 600 1 3 7 14 0 0 0 60 0 49000000 6 should be the equivalent. You can actually do this for yourself. If you use hdmi_cvt= in config.txt, then "vcgencmd hdmi_cvt" or "vcgencmd hdmi_timings" will read back the current values (in the old scheme they also allow you to set...

If not, then running "cvt 1024 600 60" gives the standardised timings for that mode. $ cvt 1024 600 60 # 1024x600 59.85 Hz (CVT) hsync: 37.35 kHz; pclk: 49.00 MHz Modeline "1024x600_60.00" 49.00 1024 1072 1168 1312 600 603 613 624 -hsync +vsync That's not quite in the right format for dpi_timings. ...

Hi, I received my Raspberry Pi 4B today. Seems fantastic so far! One problem I have encountered is getting my DPI display to work. It works great on my 3B+, but it's all black on my 4B. It's one of these: https://www.waveshare.com/wiki/7inch_LCD_for_Pi I'm basically using the configuration lines fro...