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Interfacing (DSI, CSI, I2C, etc.) • Re: CM4, DSI data append one pixel every horizontal line

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JDI LT070ME05000 probably wasn't the best example to copy as it has complications through the integrated backlight driver, controlled via DCS commands.

Those initialisation commands look more like SPI initialisation to me, with W_C and W_D being "write command" and "write data", which is normally transmitted as bit 9 of the SPI word. I don't know how those are being translated into DSI/DCS writes.

The Pi DSI controller has no requirement for either width or height to be a multiple of 10. You have ended up with htotal being a nice round 600.
The slanted image can only be caused by the RM69330 or the panel not following the data packetisation or sync signals.
There was a recent change in the kernel which might be impacting on your issue - https://github.com/raspberrypi/linux/co ... cb1a85cea2
Totally unrelated (interlaced HDMI output on Pi5).

Statistics: Posted by 6by9 — Mon Jul 29, 2024 2:47 pm



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