Hi,
with my ThinkPad T430 following boot parameter works:
acpi_osi='!Windows 2012'
I have no further parameters controlling ACPI.
Hope I could help
Jan Hohmann
On 12.09.2014 14:33, 若水三千 wrote:
> every body:
> hi! I need your help.
> when I installed ubuntu 14.04 (64bits) via usb flash disk
> ,I had to set "acpi=off" and "noacpi".
> but when the system was install successfully,I found I couldn't
> shutdown the ubuntu with command
> "sudo shutdown -h now" or click the shutdown button on my desktop.it
> freezed on the picture with
> purple backgroud and some splashes on it . but it worked fine when I
> just reboot the system . for all
> I kown ,the the acpi is important for sytem to manage the power. If I
> shutdown the acpi function,I need
> to press the power button every time when I want to shutdown the
> computer ; and the lack of acpi function
> may harm my hadware.
> I use thinkpad E425, and I have try add "acpi_osi=linux"
> ,"acpi=ht","thinkpad_acpi.brightness_enable=1",
> but none of thems worked.
> any idea to solve the problem? thanks a lot.
> bheis
>
>
>
>
>
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