I have an OSMC box built upon a Raspberry pi 3 with the Raspberry official touchscreen and an iqaudio DAC+, all connected on the GPIO using the manufacturers instructions.
It worked well for years.
There have been countless automatic OSMC upgrades without troubles.
This morning, I accepted the upgrade from OSMC and, afterwards, both the sound card and touchscreen functions have vanished.
The config.txt has not changed. The iqaudio is still enabled in it. But it can’t be used in the audio settings.
I saw no config change for the touchscreen. and it looks like it is detected (excerpt from dmesg):
[ 1.669223] mousedev: PS/2 mouse device common for all mice
[ 1.669564] usbcore: registered new interface driver usbtouchscreen
Any hints about how to fix this?