2016-06-18, 06:31 AM
(This post was last modified: 2016-06-18, 06:34 AM by Alpenskipper.)
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/documentatio...hooting.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.
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/documentatio...hooting.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.