P2714T, touchscreen does not account for quick taps

SN: NC - 03 K 257 - 74445-37 t-008P, bought November 20, 2014 (yesterday)

Rev. NUM. A00

Computer - desktop (motherboard ASUS M5A78L-M, processor AMD FX-6200)

OS: Windows 8.1

Radeon HD 7700

Monitor is attached via HDMI + USB(for touch)

The cable came with monitor

resolution 1920 * 1080, 60 Hz

The problem is that the touch screen does not account the first quick tap after having been untouched for about 6 seconds. Which often prevents me from calling the menu Windows charms, but also simply ignorant of taps. If I do a prolonged click (approximately 1/4 of a second), the touch is recognized. Other faucets are satisfactorily than if I let the touchscreen only for more than 6 seconds.

I tried to download the software FRO support page of the monitor, in the hope it will be updated to firmware or otherwise resolve the issue, but it did not help. I also ran the diagnosis integrated with no problem (looks like it only tests the display, but not touch)

I did a quick test by placing the oscilloscope probe close to the touchscreen. I have observed that, after 6 seconds of rest, continuous pulse train transformed into bursts of pulses. This transition seems to coincide with the onset of the problem.

Is it possible to solve the problem... It's pretty boring.

We could not replicate this problem on several P2714T. Contact Support technique Dell for your country to make an exchange of the configuration screen.

Tags: Dell Peripherals

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