Can't get hyperpixel 4 to rotate

Support
1

I’ve fitted a hyperpixel 4 touch screen to my Raspberry Pi 4. I’m using a new image of the 32 bit OS, it installed updates when I installed it. I’ve added

    dtoverlay=vc4-kms-dpi-hyperpixel4

at the end of config.txt and the display works but it’s stuck in portrait. I added a line

   dtparam=rotate=270,touchscreen-swapped-x-y,touchscreen-inverted-x

after the dtoverlay line but the display doesn’t rotate. I noticed that with this line in place, when I reboot the shutdown screen is rotated, but it’s back to portrait when it starts up again.

The instructions say to disable the hyperpixel4-init process but doesn’t say how to do this, I’ve done some searches and I can’t find the answer. Could this be what’s causing the problem? If so, how do I disable this service?

2

Hopefully you fixed this long before now, but for those having this issue here is how i got mine to work.

It looks like the rotation gets reset when the desktop boots… however, the touchscreen transforms don’t.

  1. Set up the touchscreen in the /boot/firmware/config.txt file as you have done.
  2. reboot
  3. When it boots to the desktop use the Screen configuration app (preferences->Screen configuration) to rotate the screen, for 270 the orientation is Left.
1 Like
3

This works great. Thanks so much!