Waveshare 6.25" HDMI LCD not working Rpi4b
Hi all, I am trying to get a Waveshare 6.25" 1560 x 720 pixel LCD working with Rpi4b, will be happy if it works on any HDMI port. I have tried various config set ups saved in config-overrides.txt including Waveshare's:
hdmi_group=2
hdmi_mode=87
hdmi_force_hotplug=1
max_framebuffer_width=720
max_framebuffer_height=1560
hdmi_timings=720 0 22 10 78 1560 0 13 3 13 0 0 0 57 0 75000000 0
This basically caused no display
also tried:-
hdmi_force_hotplug:0=1
hdmi_group:0=2
hdmi_mode:0=87
hdmi_timings:0=720 0 22 10 78 1560 0 13 3 13 0 0 0 57 0 75000000 0
framebuffer_width:0=720
framebuffer_height:0=1560
max_framebuffer_width:0=720
max_framebuffer_height:0=1560
disable_overscan=1
Result is that I see the boot up text displayed on the LCD while in initial booth up, then nothing there after.
Any idea's will be greatly appreciated.
Comments
Update: Playing around a bit more, even using ChatGPT for potential guidance, I am now getting the boot up messages displayed, then when it displays" Starting Kernel " the screen goes blank briefly and repeats the boot loop. I assume it crashes because of an incompatibility issue.
Additional info: the hardware with this display works perfectly with Raspberry Pi OS without requiring any set up. I assume therefore that EDID works with the display for auto config.