How to uninstall

[dblanchard]

Firstly, thank you for this code. I have it running on one system where I truly needed it. Thank you, much.

I screwed up and installed this on another Raspberry Pi 3 B+ running RetroPie that doesn't need it. The Pi that I mistakenly installed it on is connected to a projector over HDMI, and I ran $ ./rotate.sh 90 to correct the rotation on my projection screen, but now the image is in portrait mode, both in EmulationStation and in the shell/terminal.

I would like to uninstall this on the Pi connected to my projector, but can't see how. It may be as simple as deleting something, but I am a pretty green noob and am worried about screwing stuff up even further.

Any help would be greatly appreciated.

Thanks again.

[dblanchard]

Bump.

[briwa]

@dblanchard Not the owner, but as far as I know (been using this script for my own Pi as well), there isn't really a way to uninstall. The scripts (both the install script and the rotate script) modifies the /boot/config.txt file and adds overlays to your Pi, which configures your display on the LCD, and eventually affects the HDMI. If you open that file, there should be lines at the end that goes:

[all]
hdmi_...
dtoverlay_..

If you're not modifying anything else in /boot/config.txt, these lines at the end should be the ones that they added. Comment out or delete the lines, save and reboot, and it should "undo" what the script does, fixing the rotation issue you have. It does not necessarily uninstall everything though as I said earlier, there are many other things that the script does like installing the touch drivers and overlays which depending on how you install it, could be tricky to remove one by one. Hope this helps.

EDIT: The lines that affect the display, the ones you're looking to remove I think are these from the install script, and these from the rotate script. Find the lines that resembles those words in /boot/config.txt and remove them (or comment them out if you're unsure). That should undo all the display issues.

[cjonasw]

Bump.

RetroPie now is unusable