1
Discussion - EVE / fading screen flicker
« on: October 05, 2019, 04:54:26 PM »
Hi,
on a 800*480 display, driven by BT815, I made a background image and 20 icons of 100x100 pixels. All images are converted to 8x8 ASTC and reside in flash.
When this screen activates, all images are show up OK, but the screen flickers quite annoyingly. This slowly disappears: after about 15 seconds the screen is stable and I can switch between screens without any flicker.
If I start the display without the icons, but just the background, it shows up almost stable, but activating the icons in the first 15 seconds causes visible fading flicker. Using less compression for the background, and so more data, makes the flicker heavier and longer.
I just cannot grasp what is wrong with it. If the graphic engine is overloaded, how come the flicker disappears? Anyone any ideas?
thx.
Henk
on a 800*480 display, driven by BT815, I made a background image and 20 icons of 100x100 pixels. All images are converted to 8x8 ASTC and reside in flash.
When this screen activates, all images are show up OK, but the screen flickers quite annoyingly. This slowly disappears: after about 15 seconds the screen is stable and I can switch between screens without any flicker.
If I start the display without the icons, but just the background, it shows up almost stable, but activating the icons in the first 15 seconds causes visible fading flicker. Using less compression for the background, and so more data, makes the flicker heavier and longer.
I just cannot grasp what is wrong with it. If the graphic engine is overloaded, how come the flicker disappears? Anyone any ideas?
thx.
Henk