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DSI display 90 degrees off

Posted: Tue Apr 14, 2026 1:22 am
by dangerfantastic1
good day,

I have a 3.5' DSI display attached
https://www.waveshare.com/wiki/3.5inch_DSI_LCD_(H)

and it is displaying fine and touch works but the image is in portrait and it appears that the touch is in landscape, so I'd like to either turn thr display 90 counter-clockwise or turn the touch 90 clockwise

Re: DSI display 90 degrees off

Posted: Tue Apr 14, 2026 5:44 am
by dangerfantastic1
hey, I did a bit of fiddling and managed to get it sorted. I added a new selection to the display.json file:

{
"device": "waveshare_35_dsi",
"name": "Waveshare 3.5inch DSI Touch Display",
"description": "800x600 Capacitive Touch Display",
"address": null,
"dtoverlay": "vc4-kms-dsi-waveshare-800x480",
"cmdline": "video=DSI-2:800x600e,rotate=270",
"xrandr": "--output DSI-2 --rotate left"
}