STM32F469I-disco screen tearing on double buffer example.

[CHodg.1]

I'm running the LCD_DSI_VideoMode_DoubleBuffering example on the STM32F469 Discover board, and I get a diagonal tearing across the display when switching between the two images, even though they are using separate frame buffers.

Attached is a video of the double buffering example except the delay between switching between the two images is smaller, it makes the tearing more obvious. Note the tearing still happens in the unmodified DoubleBuffering example.

Looking at the example it should only be swapping the framebuffers during the vertical blanking of the display, so I would expect to see this tearing. I found another question which I believe is the same issue from a year ago, but it didn't get an answer.

Any help would be appreciated

[AELGH1]

Dear stranger,

Did you manage to fix that diagonal screen tearing ? I'm facing the exact same problem you did two years ago ..

[Richard-CRT]

Hello,

Now another 2 years later again I am also facing the same issue. Did either of you manage to overcome this?