Waveshare 7.9inch DSI version compatibility
nickverlinden opened this issue · comments
Hi!
Right now i'm using the Waveshare 7.9inch wide display using HDMI and USB for touch. I recently discovered there is a DSI version of this display with i2c touchscreen, I would prefer to use that because now I have a thick usb cable sticking out the back of my enclosure going into one of the pi's usb ports. Not to mention the HDMI cable is hard to work with inside an enclosure, needing to buy expensive adapters for flatcables.
It seems in linux you seem to require a special driver for this screen. I don't know much about DSI except that it's a closed standard, and always assumed the display resolution was fixed to 800x480. This screen has a much larger resolution. Does anybody know if the dsi version will work in circle?
https://www.waveshare.com/7.9inch-dsi-lcd.htm
Kind regards,
Nick
I did not test it, but unfortunately I'm afraid this display will not work with Circle. It requires special drivers for Linux, which are not available for Circle. Even if somebody would want to develop such drivers for Circle, this seems to be impossible, because the source code of the Linux drivers is not available for reference.
@rsta2 Thanks, that what i thought. As i understand it every mipi display is different, so the default framebuffer driver inside the gpu probably does not natively support it. I think most of the existing after market DSI displays just reverse engineered the official pi touchscreen's communications and are all using the exact same resolution.