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Cannot stop PiTFT from blanking
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Cannot stop PiTFT from blanking

by Eknem on Mon Jan 07, 2019 5:17 pm

I use a PiTFT Plus 320x240 2.8" TFT + Resistief Touchscreen for a project to display a GUI written in python using the qt4 library. But I keep having two problems
Problem 1 the screen blanks after 10 minutes
Problem 2 After a while (between 1 or 2 days) the touch function stops working and i cannot get out of the blank screen by tapping the screen

Especially the first problem I search and tried every suggestion that could be found on the internet. I even bought a second PiTFT to see if the first one is broken. I desperately need help.

This is my setup :
first of all i use raspbian-stretch (i used weezy and jazzy also)
I use the easy install method on your website https://learn.adafruit.com/adafruit-pitft-28-inch-resistive-touchscreen-display-raspberry-pi
I choose PiTFT as Text Console setup

Because startx wont work at this time i edit "/usr/share/X11/xorg.conf.d/99-fbdev.conf" and add :

Code: Select all | TOGGLE FULL SIZE
Section "Device" 
  Identifier "myfb"
  Driver "fbdev"
  Option "fbdev" "/dev/fb1"
EndSection


and now i use the command "startx /usr/local/tm/TM_Control.py" to start my python gui application
Now screen blanks after 10 minutes

I hope you can help me.

Friendly regards
Richard

Eknem
 
Posts: 1
Joined: Mon Jan 07, 2019 4:37 pm

Please be positive and constructive with your questions and comments.