STM32MP1 / Failed to open device

Question

I am trying to evaluate EW on the STM32MP1.

We have both STM32MP157C-DK2 and STM32MP157A-EV1 boards.

The example was executed normally on the DK2 board.

However, the following error occurs on the EV1 board.

What should I do?

 

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root@stm32mp1:/usr/local# ./EmbeddedWizard-Linux-OpenGL-DRM
Using drm device node '/dev/dri/card0'!
Available display interface(s):
DSI_0 (selected)
Display interface 'DSI_0' detected.

Available output modes:
  720 x 1280 @ 50Hz (pixel clock:   54000kHz) (preferred mode)
Selected display mode: 720x1280@50Hz (pixel clock: 54000kHz)

[     1] Failed to open device: No such file or directory, Try again...
[     2] Failed to open device: No such file or directory, Try again...
[     3] Failed to open device: No such file or directory, Try again...
[     4] Failed to open device: No such file or directory, Try again...
[     5] _OpenDevice(1086): FATAL: Failed to open device, errno=No such file or directory.
Initialize Display...

 

Thank you

Best regards

 

Answer 1

Hello,

unfortunately, I do not have the Evalboard to make the same tests.

Can you confirm that Weston was stopped?

What settings have you changed when you moved from STM32MP157C-DK2 to STM32MP157A-EV1?

Best regards,

Manfred.