Hello @MWoło.2 ,
Different things to mention. MP157 has a GPU while MP135 does not have, that already make a huge difference.
But that is not all. In fact, as MP13 has no GPU, it can try to pass through MESA libraries that can take a lot of resources.
To have the best performances that the MP13 can offer, I recommend the following modifications:
- In Yocto, add a qtbase_git.bbappend to give QT5 a new config flags:
qtbase_git.bbappend:
QT_CONFIG_FLAGS += " -linuxfb "
Then to run your application, I advice you a script that export different variable that will help to have better performances. Inside them, you also ask to use the linuxfb platform that you ask to add at qt5 compilation just before:
launch_script.sh:
#!/bin/sh
export QT_QPA_EGLFS_INTEGRATION=eglfs_kms
export QT_QPA_EGLFS_KMS_CONFIG=/home/root/config/qt_config.json
#export QT_FONT_DPI=96
#export QT_QPA_EGLFS_HIDECURSOR=1
export QT_QPA_EGLFS_KMS_ATOMIC=1
#export QML2_IMPORT_PATH=~/imports/
#export PATH=/usr/local/qt5-install/bin/:/usr/local/apitrace/bin:$PATH
export QSG_NO_DEPTH_BUFFER=1
export QSG_NO_STENCIL_BUFFER=1
export QSG_NO_CLEAR_BUFFERS=1
export QT_QPA_PLATFORM=linuxfb # because the default built into Qt is eglfs
export QT_QPA_FB_DRM=1 # otherwise it uses /dev/fbX which doesn't exist
export QT_QUICK_BACKEND=software
#export QT_QPA_EGLFS_DEBUG=1
sleep 1
psplash-drm-quit
sleep 1
(cd <your_bin_folder> && ./<your_app>)
I supposed that you went through the EGLFS image, that is the recommended one on MP13 instead of qtwayland.
I hope that it well improve your perfs,
Kind regards,
Erwan.
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