Blank screen on the STM32U5G9 board with TouchGFXDesigner

[PoP]

I am working with the STM32U5G9 board and I have some trouble when displaying applications 

As indicated in the tutorial (link below), I installed the 4 applications. I took the last ones from ST website.

https://www.youtube.com/watch?v=OMeiG9jS-yk&list=PLnMKNibPkDnF9x-s1e-v9Wtvv-fB88VWA&index=1

CubeIDE is already installed since I work with TOF sensors quite regularly

Here are my application versions.

1. CubeMx Version

1. CubeIDE Version

STM32CubeProgrammer

TouchGFX (last one)

In CubeMx, I add the TouchFX Generator

After setting CubeMx, I followed the tutorial below

https://www.youtube.com/watch?v=NFljjd_vQGA&list=PLnMKNibPkDnF9x-s1e-v9Wtvv-fB88VWA&index=2

With the configuration

In TouchGFX Designer, I can simulate my application

Unfortunately, in the CubeIDE step When I compile the project and upload the compiled application, nothing happens on the display (blank screen).

From CubeIDE, I'm able to load the tutorial application and debug it by stepping into the code.Unfortunately, in runtime the display remains black.

This is the same cases for all demo in TouchGFX except only 1 demo (Flash limited E-Bike demo), 

Otherwise, I get a black screen for the other demos.

I don't know where I am wrong

[MM..1]

&^)$^(^*^#$&^%*  This is example of your info. You write on one board , is this info on second board same code shows display ok etc. @Osman SOYKURT info about not working demos on ES is fine, but more better is info where make change to ES go working... On my planet result for action is reaction

[Osman SOYKURT]

Hello @MM..1 ,

I don't know about the differences between the "ES" and "official" board, but I think ST's quality department may have the answer. We wrote this in our User Manual : 
"Parts marked as “ES” or “E” are not yet qualified and therefore not approved for use in production. ST is not
responsible for any consequences resulting from such use. In no event will ST be liable for the customer using
any of these engineering samples in production. ST’s Quality department must be contacted prior to any decision
to use these engineering samples to run a qualification activity." . 

I'll also try to look for the differences on my side and message you back if I find anything interesting

[Osman SOYKURT]

Hello,

I recommend having the "ES" boards you purchased replaced with official boards through your supplier.
Regarding the technical aspect, I am still investigating the issue; however, as an initial step, you might try reducing the external flash speed from 130MHz to 80MHz. This may help resolve the problem, although it will result in a slower flash performance.