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(ID:2260) Touch not acting for HDMI 5" 800x480 Display With
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(ID:2260) Touch not acting for HDMI 5" 800x480 Display With

by mchobby on Tue Apr 07, 2015 3:24 pm

Hi Support,
We have 2 of our HDMI Touch screen (ID:2260) that are not working properly with our Raspberry-Pi 2 (we have many of them).
The screen does display properly but the "touch" is not working.
Every possible things has been checked and tested (even the USB cable).

As final test, I did connect all the screen we have (15+ pieces) on my Linux Mint computer to test the display and touch.
For those 2 screens with "touch failing" I did noticed a small change in the debug messages.
For all screens + touch that works properly have the 0003:04D8:0C02:xxxx as device identification.
For the screen presenting the touch issue, we have 0003:04D8:0C01:xxxx as device identification.

(Please see the commented picture showing dmesg for a working and another for the failing "touch" capability).

Any suggestion to make the touch working properly?
Attachments
HDMI-5Pc-Touch-screen issue.jpg
HDMI-5Pc-Touch-screen issue.jpg (334.36 KiB) Viewed 484 times

mchobby
 
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Re: (ID:2260) Touch not acting for HDMI 5" 800x480 Display W

by adafruit_support_mike on Tue Apr 07, 2015 10:10 pm

The AR1100 may have configured itself as a digitizer.

Try the instructions on this page to see if you can convince it to be a mouse again:
https://learn.adafruit.com/ar1100-resis ... guide/help

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Re: (ID:2260) Touch not acting for HDMI 5" 800x480 Display W

by mchobby on Mon Apr 13, 2015 7:36 am

Great this worked fine :-)

Note: It has been necessary to plug the screen twice in order to be detected in the AR1100 configuration utility.

Thanks a lot.

mchobby
 
Posts: 71
Joined: Tue Jan 24, 2012 3:14 pm
Location: Belgium

Re: (ID:2260) Touch not acting for HDMI 5" 800x480 Display W

by adafruit_support_mike on Mon Apr 13, 2015 6:20 pm

Glad to hear it's working for you.

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Please be positive and constructive with your questions and comments.