Re: ask for help about "thinkpad_acpi:unsuported brightness interface"

[Jan Hohmann <jhohmann@xxxxxxxx>]

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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Want excitement?
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When you want reliability, choose Perforce
Perforce version control. Predictably reliable.
http://pubads.g.doubleclick.net/gampad/clk?id=157508191&iu=/4140/ostg.clktrk

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