hybrid-graphics-linux team mailing list archive

[Lekensteyn <lekensteyn@xxxxxxxxx>]

Hi,

This is a classic mistake, see http://askubuntu.com/q/49009/6969.

Regards,
Lekensteyn

On Sat, Oct 22, 2011 at 10:21 PM, Yuriy Yarovoy <yuriy.yarovoy@xxxxxxxxx>wrote:

> **
> Hi, guys!
>
> I've tried to use both methods (acpi_call and byo-switcheroo) on my laptop
> with Ubuntu 11.10, but when I call
>
> echo OFF > /sys/kernel/debug/vgaswitcheroo/switch
>
> command in terminal I get this error:
>
> bash: /sys/kernel/debug/vgaswitcheroo/switch: Permission denied
>
> What is the problem? Why the command doesn't work?
>
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