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Troubleshooting • Waveshare 7" DPI + RPi Zero W - display not working

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Hello,

I have obtained this display: https://www.waveshare.com/7inch-lcd-for-pi.htm
and followed instructions here for Bullseye: https://www.waveshare.com/wiki/7inch_LCD_for_Pi

I have copied overlay files into /boot/overlays/.

I have RPi Zero W connected to display via RGB Hat. If I turn on the switch for backlight, that works. However nothing seems to be displayed ever (blank screen).

My /boot/config.txt:

I have tried using option 1:

Code:

[all]dtoverlay=vc4-kms-v3ddtoverlay=vc4-kms-DPI-7inchdtoverlay=waveshare-7dpi
I have tried also using option 2

Code:

dtoverlay=dpi24enable_dpi_lcd=1display_default_lcd=1dpi_group=2dpi_mode=87dpi_output_format=0x6f005hdmi_cvt 1024 600 60 6 0 0 0disable_overscan=1
(while commenting the option 1 lines)

I have even added this:

Code:

dpi_timings=1024 1 40 48 128 600 1 13 3 45 0 0 0 60 0 37000000 6

Statistics: Posted by dusoft — Thu Mar 21, 2024 8:16 pm



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