Re: [PATCH v4 0/6] Touchscreen performance related fixes

From: Richard Cochran
Date: Tue Dec 16 2014 - 10:31:03 EST


On Tue, Dec 16, 2014 at 10:31:47AM +0200, Catalin Crenguta wrote:
>
> It seems that because the ribbon cable has both the analog and digital
> signals, the analog signals are affected by the digital ones (hence
> the touchscreen was working OK when the display was disabled). Putting
> decoupling capacitors on X+, X-, Y+, Y- reduces the noise and the
> false events disappear.

IOW, the root cause is a design flaw in the BB-View 4.3 Cape?

Thanks,
Richard
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