關於ThinkPad t400安裝Ubuntu 12.04後的幾個問題

一，溫度過高

本人是原系統是Ubuntu 11.04，升級安裝了Ubuntu 12.04之後，發現t400的背面中央的位置溫度極高，google了一下，發現是t400的雙顯卡的問題，因為我安裝的的win7和ubuntu雙系統，win7默認開啟了智能顯卡切換，所以就按照默認bios設置安裝了ubuntu，可能是ubuntu對雙顯卡支持不大好，所以才導致t400溫度超高，曾經一度導致自動關機，你就知道有多高的問題，大概70到80c。

沒辦法只能禁用了獨立顯卡，重啟機器在bios裡面設置了禁用了獨立顯卡，使用獨立顯卡。重啟之後，溫度果真降了下來。比win7稍高。不過已經可以接受了。

二，掛起（suspend）無法喚醒

使用命令：sudo apt-get install pm-utils

在ubuntu軟件中心裡面，找到pm-utils，點開 更多信息 把其他三個沒有安裝的附加選項鉤選上，應用設置就好了。

三，沒有休眠（hibernate）選項

ubuntu 12.04 因為某些程序的bug，所以禁用的hibernate選項。說明如下：

Ubuntu12.04 (Precise Pangolin) is getting closer to launch, but some of thebugs have not been iron out yet. It seems that the Hibernate functionis one of them.

The Hibernate function won't beavailable in Ubuntu 12.04 (Precise Pangolin), at least according tosome discussions that took place on Launchpad these days, where a bugwassubmitted.

Itappears that hibernation is disabled by default in Ubuntu 12.04 andthere is no option available to enable it, unless you are willing todoodle with some configuration files.

The bug or at least thelack of this feature will affect all of the Ubuntu derivatives,Kubuntu 12.04, Lubuntu 12.04, and Xubuntu 12.04.

According tosome of the comments made regarding the bug, it appears that thisfunction affects a number of users in the previous versions of theUbuntu operating system and made them lose important files.

We'llkeep you informed if Canonical decides to implement hibernate again!

如果您和我一樣，想要開啟休眠選擇，那麼操作如下：

Enable Hibernation in Ubuntu 12.04 (PrecisePangolin)

I don’t know about you, but it seems like after upgrading orinstalling Ubuntu 12.04, the hibernation command on the session menuisn’t available anymore. The only command available to save yoursession and put your computer to sleep is the Suspend command. Now ifyour situation is like mine, and want to bring back the hibernatecommand in Ubuntu 12.04, then continue below to learn how to bring itback. This will restore the hibernation command to your session menu.Without wasting anymore or your time, let’s get going.

Objectives:

• Enable Hibernate command on thesession menu in Ubuntu 12.04

• Enjoy!

First, test hibernation works on yoursystem by running command:

sudo pm-hibernate

If everything is fine,you can continue to use this command to hibernate your system.

To get started, press Ctrl – Alt – Ton your keyboard to open Terminal. When it opens, run the commandsbelow to create a hibernate policy file.

sudo gedit /var/lib/polkit-1/localauthority/50-local.d/hibernate.pkla

Then copy and paste the lines below into the file and save it.

[Re-enable Hibernate]
Identity=unix-user:*
Action=org.freedesktop.upower.hibernate
ResultActive=yes

Restart your computer and you should see it.

Enjoy!