I'm tying to use Hybrid Graphics and there is a step that I can't do:

sudo cat /sys/kernel/debug/vgaswitcheroo/switch

It says

cat: /sys/kernel/debug/vgaswitcheroo/switch: Operation not permitted

I've found that the "switch" file has 0 bytes and it should have this:

1:DIS: :DynOff:0000:01:00.0

If I try to edit, I get permission problems. I can't rename and also cant delete or cant create another file inside the folder. (as root)

Who to fix this?

Some says "debugfs" will change permissions back every reboot



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