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Linux/PROCESSOR-SDK-TDAX: QLinuxFbScreen::connect: Invalid argument

Raza Kamal
Prodigy 20 points

Part Number: PROCESSOR-SDK-TDAX

Tool/software: Linux

I am trying to run QT application on PROCESSOR-SDK-TDA2-3.04 that supports VDRM controller.

I am getting some errors when I am running that QT app with the command

./movable -platform linuxfb -display "LinuxFb:/dev/fb0" -qws

QLinuxFbScreen::connect: Invalid argument
Error reading fixed information
LinuxFb: driver cannot connect
Aborted (core dumped)

Here is my configuration.

./configure -prefix /opt/qt-4.7.1 -embedded arm -platform qws/linux-x86_64-g++ -xplatform qws/linux-vsdk304-arm-gnueabi-g++ -depths 16,24,32 -no-mmx -no-3dnow -no-sse -no-sse2 -no-glib -no-cups -no-largefile -no-accessibility -no-openssl -no-gtkstyle -qt-mouse-pc -qt-mouse-linuxtp -qt-mouse-linuxinput -plugin-mouse-linuxtp -plugin-mouse-pc -opensource -qt-gfx-linuxfb -qt-gfx-qvfb

Could you please give some inputs to resolve this issue. If I am doing some thing wrong in configuration or some where else.

  • 0
    TI__Mastermind 30480 points
    Hi Raza,
    SDK 3.04 with vDRM support is not validated for QT applications. The filesystem provided with vision-sdk 3.04 doesn't have QT libraries.

    Are you trying too use linux fbdev here? This feature is no more supported, drm is the default display
  • 0 in reply to Ramprasad
    Prodigy 20 points
    Yes I am using fb0 that is linked to vdrm with soft link in this manner
    /dev/fb0 -> /dev/vdrm-controller-0
    If this feature is no more supported so could you please help me out to run QT-4.7.1 application on it through VDRM, what is the procedure to get the display on the screen?