Issues with the Original Raspberry 7'' Touch Display - Printable Version +- OpenMarine (https://forum.openmarine.net) +-- Forum: OpenPlotter (https://forum.openmarine.net/forumdisplay.php?fid=1) +--- Forum: How do I...? (https://forum.openmarine.net/forumdisplay.php?fid=3) +--- Thread: Issues with the Original Raspberry 7'' Touch Display (/showthread.php?tid=146) |
Issues with the Original Raspberry 7'' Touch Display - Alpenskipper - 2016-06-18 Hi! I use the original 7'' Touch display on my boat. Actually, I have several issues with the touch handling and backlight. 1. rightclick I can't enable the touch rightclick. I tried it with the tutorial from the raspbery foundation https://www.raspberrypi.org/documentation/hardware/display/troubleshooting.md, pasted below. 2. zoom gestures No zoom gestures possible 3. Backlight handling I found a program in github to manage the backlight. Unfortunately it is not working. https://github.com/jakeh12/rpi-backlight The funny thing is, that the touch things were working correctly in an earlier installation. Same with backlight on/off and two-finger zoom in opencpn. And further more the screen resolution is not detected automatically any more. I have to force it in the config.txt. Is it possible, that all this is a screen driver problem? How to test and fix? best regards, Martin HOW DO I ENABLE RIGHT CLICK? You can emulate a right click with a setting change. Just: sudo nano /etc/X11/xorg.conf Paste in: Section "InputClass" Identifier "calibration" Driver "evdev" MatchProduct "FT5406 memory based driver" Option "EmulateThirdButton" "1" Option "EmulateThirdButtonTimeout" "750" Option "EmulateThirdButtonMoveThreshold" "30" EndSection Hit CTRL+X and y to save. Then: sudo reboot Once enabled, right click works by pressing and holding the touchscreen and will be activated after a short delay. Issues with the Original Raspberry 7'' Touch Display - Alpenskipper - 2016-06-19 Meanwhile I can give some answers by myself: 1. this rightclick solution does not work on jessie, only on wheezy. I installed "twofingers", rightclick ist working now. 2. backlight handling with rpi-backlight is running fine. I did sudo apt-get update and upgrade before. What I am still looking for is a solution for a screensaver, that switches the backlight off after a while. And a finction, that wakes the display up, when touchin the display... RE: Issues with the Original Raspberry 7'' Touch Display - Sailoog - 2016-06-20 If you have upgraded maybe you have back to the default state for screensaver. To turn off the screensaver: edit /etc/kbd/config: BLANK_TIME=0 POWERDOWN_TIME=0 add to /home/pi/.config/lxsession/LXDE-pi/autostart: @xset s noblank @xset s off @xset -dpms |