Bild yocto with QT5 eglfs AND linuxfb

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Bild yocto with QT5 eglfs AND linuxfb

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cedric_starke
Contributor III

Hi community,

I use the 5.4.47 linux/yocto version with the imx8mmddr4evk build configuration.

With the available hardware I want to use a HD MIPI display with the QT eglfs platform or a SPI 240x320 display with the QT linuxfb platform.

The default configuration delivers eglfs but not linuxfb.

To solve the problem I added the folowing line in the conf/local.conf file:

PACKAGECONFIG_DISTRO_pn-qtbase = "linuxfb"

This ends in the rootfs with both libraries for eglfs and linuxfb. BUT only linuxfb can be used.

My application, I used before with eglfs, don't start any more with eglfs.

 

Now I have two QT lib folders for two displays as workaround, but I hope there is any other solution available.

 

Any idea?

 

Best regards

Cedric

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3 Replies

1,856 Views
Bio_TICFSL
NXP TechSupport
NXP TechSupport

Hello Cedric,

 

The MX8MM does not support QT EGLfs, but it looks like you are out of this problem.

Regards

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1,852 Views
cedric_starke
Contributor III

Hello Bio_TICFSL,

indeed I never had any problem to use eglfs with the imx8m mini till I also want to use linuxfb.

I'm surprised to read it isn't supported.
So the only supported interface is wayland?

 

Best regards
Cedric

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1,844 Views
Bio_TICFSL
NXP TechSupport
NXP TechSupport

Correct! also LinuxFb neither is supported

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