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kwindrem / RpiDisplaySetup

Raspberry Pi 7" touchscreen for Venus OS (also HDMI)
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Blanking waveshare 7 #28

Open PatrickB100 opened 8 months ago

PatrickB100 commented 8 months ago

Goodmorning,

is there a status file which indicates if the blanking is active or not? The waveshare 7 needs to be switched of by an io which i can do with node red.

Thanks, Patrick

kwindrem commented 8 months ago

If you are talking about turning the screen off and on (the screen saver function), then you can probably read the file pointed to by /etc/venus/blank_display_device.

RpiDisplaySetup allows this to be configured manually from the command line if you know what /sys/class... is needed for screen saver control.

mcgyver78 commented 7 months ago

i´ve found a solution

blanking the display an switching off the background light

with this https://community.victronenergy.com/questions/146206/cheap-35-tft-touchscreen-backlight-raspberry-pi-mo.html

read the comments

PatrickGoettsch commented 6 months ago

i´ve found a solution

blanking the display an switching off the background light

with this https://community.victronenergy.com/questions/146206/cheap-35-tft-touchscreen-backlight-raspberry-pi-mo.html

read the comments

Hi, I tried your solution but still my screen is not blanking. I am running Victron OS 3.13. Have you any further idea?

mcgyver78 commented 6 months ago

do you measure the GPIO18 / PIN2 ? make sure the pin is switching with the blanking time you have set.

backlightCtrl /dev/input/touchscreen0 45