Higher overlay modes on i.MX 6 Dual

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Higher overlay modes on i.MX 6 Dual

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themylogin
Contributor I

I am playing 1080p video on i.MX 6's IPU 0 Display 0 Background DI (/dev/video16) and want to overlay it with Qt application via Overlay DI (/dev/fb1). It works really great, but only in small part of the screen because the only video mode available for /dev/fb1 is 240x320p-60:

root@box:~# cat /sys/class/graphics/fb1/modes

U:240x320p-60

Can it be higher and how?

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wangyanqing
Contributor I

Hi Vladimir.


I want to do the similar thing as you, do you meet below problem?

when mfw_v4lsink start to play video, it will blank /dev/fb0(/dev/video16),

then you will notice screen blank then resume when video start to play ???


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themylogin
Contributor I

No, sorry, I didn't tried this (and have no opportunity to do it now), but thank you for participating! Are you experiencing the same video mode issues?

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Bio_TICFSL
NXP TechSupport
NXP TechSupport

Hi Vladimir,


This needs some configuration of /dev/fb1. You  need to set the resolution, enable alpha in pixel and unblank the
framebuffer. See https://community.freescale.com/thread/303279 for ioctls to do this


hope this helps