image disappear

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Hello,

I am working on embedded project with LCD 240x320 (width is 240)
When I render image to framebuffer, I see for a split of a second and
than it disappear.
Is there any explanation for such behaviour ?

I first suspected the timing parameters which I've configured.
But when I use test bar color from the cpu it is seen stable , and
clear on the screen. I guess it means that timing are OK ?

Another project (different cpu, kernel) with the same lcd, and the
same (Expected) timing, gives the following:
mode "240x320-0"
# D: 0.000 MHz, H: 0.000 kHz, V: 0.000 Hz
geometry 240 320 240 320 16
timings 0 0 0 0 0 0 0
accel false
rgba 5/11,6/5,5/0,0/0
endmode

In that project there is no issue when rendering an image (the image
does not disapear).

But In my cpu, kernel I see the following:


root@dm814x:/opt/dvr_rdk/ti814x# fbset -fb /dev/fb0

mode "240x320-782"

   # D: 148.500 MHz, H: 285.577 kHz, V: 782.403 Hz

   geometry 240 320 240 320 16

   timings 6734 148 88 36 4 44 5

   rgba 5/11,6/5,5/0,0/0

endmode

Can any of the above differences explain this behaviour ? Hiw can I
fix it (I tried to use fbset with -t 0 0 0 ... but it did not help)

The images on my board can be seen here:
https://drive.google.com/drive/folders/0B22GsWueReZTR1IxYzEteDNpUGc

Regards,
Ran
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