(Solved) Permission denied

[farkas]

I'm trying to switch to the AMD gpu card on my laptop.

viewtopic.php?f=59&t=279363

I may have a solution with the help of roblm but I keep running into Permission denied.

steve@steve:~$ sudo echo ON > /sys/kernel/debug/vgaswitcheroo/switch
bash: /sys/kernel/debug/vgaswitcheroo/switch: Permission denied
steve@steve:~$

and

steve@steve:~$ sudo tee /sys/kernel/debug/vgaswitcheroo/switch <<< ON
[sudo] password for steve:
ON
steve@steve:~$ sudo echo DIS > /sys/kernel/debug/vgaswitcheroo/switch
bash: /sys/kernel/debug/vgaswitcheroo/switch: Permission denied
steve@steve:~$

How do I get permission?

[WharfRat]

First try sudo -i which will escalate to root privileges in the terminal then echo ON > /sys/kernel/debug/vgaswitcheroo/switch

If you want to use tee and not the root privileged terminal then echo ON|sudo tee /sys/kernel/debug/vgaswitcheroo/switch

[farkas]

Thank you WharfRat.