DavidPoolCar
Posts: 2
Joined: Mon Feb 19, 2018 5:37 am

RPI touchscreen dead column

Mon Feb 19, 2018 5:41 am

Hi there,

First time poster, be gentle. I've being working with some raspberry pi's at work, and I've discovered a problem with some of the raspberry pi touchscreens. Thought I might check if anyone else has encountered the problem and has a fix.

It appears that the touchscreen has a dead touch column (in Portrait mode, I guess it would be row if held landscape) straight in the middle of the screen, which is a problem because there's buttons in the center that I need to press. It appears to work intermittently however, as after a series of touches at varying pressure it eventually works.

If pertinent the application I'm running is a web page in Flask, but it appears to be affected across more than just that app.

Any ideas?

texy
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Joined: Sat Mar 03, 2012 10:59 am
Location: Berkshire, England

Re: RPI touchscreen dead column

Mon Feb 19, 2018 9:44 am

Hi and welcome to the forum.
Which touchscreen - the official Raspberry Pi 7" touchscreen?

Texy
Various male/female 40- and 26-way GPIO header for sale here ( IDEAL FOR YOUR PiZero ):
https://www.raspberrypi.org/forums/viewtopic.php?f=93&t=147682#p971555

DavidPoolCar
Posts: 2
Joined: Mon Feb 19, 2018 5:37 am

Re: RPI touchscreen dead column

Mon Feb 19, 2018 9:42 pm

Hi there,

Sorry should have confirmed that in my first post, yeah it's the official Raspberry Pi touchscreen.

pvdmeer
Posts: 29
Joined: Mon Feb 22, 2016 10:29 am

Re: RPI touchscreen dead column

Mon Nov 12, 2018 8:20 am

Have the same problem. About 10% of the official touchscreens we used have degraded or totally dead touch area. Have you come up with a fix for this?

Scott114
Posts: 1
Joined: Tue Jan 29, 2019 7:44 am

Re: RPI touchscreen dead column

Tue Jan 29, 2019 8:52 am

I'm also facing the issue, please help me to resolve this issue. vidmate

JBeebout
Posts: 1
Joined: Tue Jul 21, 2020 5:18 pm

Re: RPI touchscreen dead column

Tue Jul 21, 2020 6:11 pm

I am planning to deploy a few hundred of these touchscreens, this 10% failure rate is concerning, but there are not many similar products available. (most OEM screens use HDMI) what quantities were you using to experience this failure rate?

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