i.MX Processors中的主题 Re: Display rotation

Display rotation

pigi — Wed, 31 Aug 2022 07:59:24 GMT

Hi, we have an i.MX8MM with LVDS.

We had to run several applications on it and we had to rotate the display 180 degrees.

We have tried several canonical approaches but without success.

How can we rotate the display?

joanxie — Tue, 06 Sep 2022 08:14:16 GMT

what bsp do you use? linux or android?

pigi — Tue, 06 Sep 2022 08:53:31 GMT

we are using Linux with 5.4.142 kernel onboard.

joanxie — Fri, 09 Sep 2022 11:28:51 GMT

you can change "transform" in the weston.ini

pigi — Mon, 12 Sep 2022 09:06:22 GMT

Thank you for your reply, but we choose to don't use weston.

Are there a lower level way?

joanxie — Mon, 26 Sep 2022 13:31:44 GMT

you can try to use GPU 2D to rotate, you can refer to the G2D api from gpu user guide, you can download the user guide from:

pigi — Mon, 03 Oct 2022 08:29:24 GMT

Thank you, I'll give it a try.