Quote:
Originally Posted by Glottis
PS: Could you explain to me about the hardware accelerated inversion and it's workaround please.
|
The processor has an integrated 'graphics card' that can be used to invert the content of the screen before it is sent to the display.
All newer devices (starting with the Aura) are using the next generation of eInk panels. When they changed their code to work with these, they started using the 'graphics card' for post-processing to make page-turning smoother. And they never bothered to reimplement the inversion-mode for their new devices because they weren't using it anyway.
So on these models, the inverting is done on the CPU and this is uses a bit more battery. It's not much, 5-10% maybe.
____
The ghosting problem: Ghosting is inherent in eInk technology, because fast updates are based on correctly 'guessing' the current physical state of each pixel/cell, and then changing only as little as necessary. Over the last generations of eInk panels, screen updates have improved, but (presumably) at the cost of extensive factory calibration. From my understanding, this calibration is tuned for either black-on-white or the other way around.
It might be possible for nightmode to switch back to one of the older update-algorithms, but I need to do some testing first.
Does the H2O do full-screen refreshes, as the Glo did?
Could you post a picture or even better a short video of the ghosting problem?