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Touchscreen not functioning
Posted: Mon Oct 21, 2024 9:45 pm
by Alfarotti
The output from cat /proc/bus/input/devices correctly identifies the touchscreen I'm using, Waveshare WS170120, and links it to the correct input handler "event3" for the touchscreen. But I get no response from the touchscreen using the QLCPlus image. If I swap back to my regular RPI SD then all is ok. There is no difference in the config.txt files either.
This must be a QT/QLCPLUS setting problem. Can you help please.
Best regards
Re: Touchscreen not functioning
Posted: Tue Oct 22, 2024 11:06 am
by GGGss
Welcome to the community,
A touchscreen mimics a mouse pointer. When it is reachable at your O.S., it should be reachable in the QLC+. Am I making a mistake here by stating that?
Wait wait - you are saying the QLC+ official SD-image is __not__ working?
Did you follow the manual? There are specifics on how to enable touchscreens to work ... Did you study the accompanying .pdf?
Re: Touchscreen not functioning
Posted: Tue Oct 22, 2024 1:49 pm
by Peetem
There are some functions that I cannot access via my touchscreen - I have to switch over and use my wireless mouse pad.
That's why I couldn't understand how to load projects on my Pi (another thread). I couldn't access the "Design Mode" button. When I switched to using the mouse, I could access it (and some other features).
Re: Touchscreen not functioning
Posted: Wed Oct 23, 2024 7:22 am
by GGGss
Then, you should calibrate your screen .... I don't know how this has to be done.