I'm not entirely sure why, but I'm suddenly unable to disable the I2C driver in Jessie with Pixel.
I have tried sudo raspi-config but when I reboot its back on, so I tried preferences/Raspberry Pi Configuration/Interfaces but its the same deal. When I launch the app again its enabled, or if I reboot its enabled.
So I tried commenting out i2c-dev in /etc/modules and dtparam=i2c_arm=on in /boot/config.txt but it just seems to uncomment it self after reboot. i have confirmed the files are being saved by using cat and they are saved correctly. I have also then tried to delete those strings from the file but they seem to append at the bottom of the file after reboot enabling I2C again.
I'm dumbstruck as to what would do this.