SSD1963 and FSMC problems

[AULUS.10]

Hello, I have some TFT screens with SSD1963 (4.3 - 5 - 7 inch)

I'm using them with stemwin and stm32f407 board. All is working but 4.3 and 5 inch become white screen after a while (time is random). 7inch is working perfect.

Firstly I made FSMC settings is the same with 7inch but 4.3inch and 5inch, both didn't work, I had to change FSMC settings both of them and then, both worked but become white screen after a while. I didn't find any FSMC setting without problem.

By the way SSD1963 init codes are very similar except TFT horizontal and vertical settings.

My first question, Drivers is same(ssd1963) but why do each of ssd1963 want different FSMC settings?

Secondly, How can I find real FSMC settings?

Thanks

[AULUS.10]

I found that explanation on some pages on internet "anti-interference ability of SSD1963 is poor with risk of crashing and white screen".

any idea?