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outdoorbits / little-backup-box

This software turns a single-board computer into a versatile, pocket-sized backup solution. Especially for digital photography, this is the solution for backing up images and media files on mass storage devices when traveling or at events. Media content can be viewed and rated for the subsequent process.
http://littlebackupbox.com
GNU General Public License v3.0
504 stars 103 forks source link

OLED Permission denied #99

Closed maelremrem closed 3 years ago

maelremrem commented 3 years ago

I have a problem with my oled screen The OLED won't start but with the i2cdetect -y 1 I can see it (only if I repeat 3 times the command) It blinks and some of the text appears when I run the status-display.sh This is the output on the ssh window image

any idea to fix this ?

outdoorbits commented 3 years ago

Did you run status-display.sh as root?

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Am 2021-07-23 00:07, schrieb Maelremrem:

I have a problem with my oled screen The OLED won't start but with the i2cdetect -y 1 I can see it (only if I repeat 3 times the command) It blinks and some of the text appears when I run the status-display.sh This is the output on the ssh window [1]

any idea to fix this ?

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Links:

[1] https://user-images.githubusercontent.com/11769158/126715547-2718fc66-3c8e-42d1-b443-d8d595f06779.png [2] https://github.com/dmpop/little-backup-box/issues/99 [3] https://github.com/notifications/unsubscribe-auth/AKY6K7LK3LTM2AFXJZCXAJ3TZCJC5ANCNFSM5A235UYQ

maelremrem commented 3 years ago

Yes and it's blocked to this : image and if I try dos2unix manually, it works to convert but this is what I get : image

maelremrem commented 3 years ago

I made a copy of the status-display.sh script and modified it to comment this : "dos2unix "$CONFIG" and now this is what I get on the OLED : https://youtube.com/shorts/I-iMOUvJ20Q?feature=share

dmpop commented 3 years ago

Maybe it's a good idea to start with some basic troubleshooting first.

Try to run the following commands on the Raspberry Pi:

sudo oled r
sudo oled +a "Hello"
sudo oled +b "this"
sudo oled +c "is a"
sudo oled +d "test"
sudo oled s

Does it work? Do you see the text on the screen?

maelremrem commented 3 years ago

it does nothing. No text on screen and no error on the console when I do sudo i2cdetect -y 1 this is what I get : image I have to do it 2 times to get an address I use an RPI3 B+ does it change something ?

dmpop commented 3 years ago

If the display shows nothing, and the Raspberry Pi has trouble detecting it (you need to run the detect command twice), it means either that the display is defective or it's wired incorrectly to the GPIO pins.