Hi there buccaneers!
I have just spent the past half an hour worrying about all of my files that I'd installed on my Raspberry Pi - I had just finished testing out my Hyperpixel display (which is superb by the way!) and was ready to start using my HDMI monitor again (I know, unthinkable). Since I couldn't find any documentation on how to do this, I went muddling around in the
config.txt file and ended up with no display at all...
There may be a better way to do this, so please enlighten me if there is, but I thought I'd try and spare anybody else in the same position by showing you my way of circumventing this distress;
Before you try installing the Hyperpixel software, navigate to
/boot and make a copy of the
config.txt file - just call it
default-config.txt or something along those lines.
Once you've installed the Hyperpixel software, make a copy of the new
config.txt file and call it
Now, whenever you want to change your display, simply replace the current
config.txt file with one of the others, making sure to keep a copy of it for the future!
So remember folks, Make Backups! Never change any configuration or system files without knowing what your doing, or if you do, make sure you make a copy of it!
If any of you are unfortunate enough to have already changed the
config.txt file without making a copy, here's a link to a clean file for you to use: https://raw.githubusercontent.com/RPi-Distro/pi-gen/dev/stage1/00-boot-files/files/config.txt - just make sure to keep a version of your Hyperpixel file to swap it out for. :)
Hopefully I've saved a couple of people an hour or so of trying to fix a simple error. :)