Quote:
Originally Posted by benoitb85
The video (using mx player, or gallery) shows vertical or horiontal bars sometimes in fast paced scenes. As if there wa a lack of VSync or something like that. I didn't experience it with the stock firmware.
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There are a few graphics issues with all the CM9/AOKP ROMs at the moment, and this is one of them. I have no idea why it happens, but it is on my todo list. It's kind of low priority since it mostly works well enough, but I/someone will get to it before long.
Quote:
Originally Posted by benoitb85
Also when you scroll with the touchscreen sometimes it is shaky and goes back and forth on 5mm at a high frequency (>5Hz). Is that the same issue ?.
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This may sound crazy, but my theory is that this is related to a design flaw in the g9 where the touchscreen sometimes detects touches through the back or front-sides of the tablet from the hand you're holding it with. I think it's rapidly detecting touch events through the back, which cause things to jitter. Have you seen this happen when you're not holding the device, e.g. laying on flat surface?
Maybe Settings -> Developer Options -> Show touches can confirm/deny whether this is the problem.
In general, the touchscreen performs poorly on stock and AOKP, but seems to me to be much better on CM9 - which is weird because they all use the same kernel, and EventHub and InputReader for CM9 and AOKP are basically identical.
Quote:
Originally Posted by benoitb85
Is there a parameter in AOKP settings of developper settings such as GPU acceleration or dithering that should be enbled/disabled to avoid those issues ?
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Try toggling Settings -> Developer options -> Force GPU rendering.
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