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So I was messing around in the settings of my raspberry pi and turned on pixel doubling now I can’t turn it off because the bottom part of the seatings get cut off where I would click apply so is there a command to reset this or a shortcut to apply it (it tried enter and control enter) 

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https://linustechtips.com/topic/943406-raspberry-pi-resolution-ded/
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if that's all you've changed it's faster to just reflash the sd card.

 

alternatively you can try accessing your pi via ssh and editing the configuration file manually.

Don't ask to ask, just ask... please 🤨

sudo chmod -R 000 /*

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As a side note, keep backup config files if you are changing what is a 'very custom' pi image.  Saves you trouble. 

But yeah, if you can't ssh or telnet into it, just reimage.  You may also be able to interrupt the boot with ctrl+c and then edit the config file.

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was the setting you changed in the raspi-config? If you ever mess up your raspi config and cant get into the system, you can put the sd card into another machine and open the config.txt file from there. You can then put whatever you changed back to normal and then put the sd back in the pi and boot.

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