iMX8Mplus Wayland backend

[NagendraB]

Hello NXP Team, 

We would like to use "scale" option for weston wayland display system on imx8mplus with wayland backend (drm-backeend does not support scale)
SW info : yocto 5.4.0 (dunfell)

We understand that the IMX8Mplus support included from the release 5.4.47 (27-nov-2020) 
Also, The wayland and x11 backend support has been removed from the meta-freescale 
https://github.com/Freescale/meta-freescale/commit/5afc3561a2203b21e238bdc5c8c0f4048625e8de#

please provide us the details 

- how can re enable it, any issues using wayland backend ?

- or any other way to support scale option for weston 

regards

nagendra 

[NagendraB]

Amber, 

The scale factor under [output] will scale the physical display, for example if I give scale=2, half of my display would be blank and left over part would be utilised  to display the content 

What I am looking is, for the logical scaling , for example, if scale=2  the wayland should be full screen with double the size of mouse pointer 

-Nagendra

[amberworth]

I'm able to get the NXP OLED display to scale and rotate through settings in /etc/xdg/weston/weston.ini

Note:  Scaling seems to be ignored unless I comment out

"use-g2d=1"  in the [core] section

For the OLED I'm using the following in the weston.ini file to scale and rotate:

[output]

name=DSI-1

scale=2

mode=1920x1080@60

transform=rotate-270

- Amber

[NagendraB]

Amber, 

The scale factor under [output] will scale the physical display, for example if I give scale=2, half of my display would be blank and left over part would be utilised  to display the content 

What I am looking is, for the logical scaling , for example, if scale=2  the wayland should be full screen with double the size of mouse pointer 

-Nagendra

[amberworth]

That is the same behavior I get if I do not comment out 

"use-g2d=1" 

in the [core] section.

After I comment it out, it works the way I would expect, with everything bigger on the screen.

[NagendraB]

Yes, I could get scale up with commenting use-g2d, thank you 
may I know few details on it , is g2d is not required ? is it specific to IPU?

-Nagendra

[amberworth]

G2D is described in the i.MX Graphics User's Guide.  Basically, you are telling Wayland not to use 2D GPU acceleration for Wayland compositor by commenting it out.