Several questions about ThinkPadt400 after Ubuntu12.04 is installed

I. The temperature is too high. I used the original system Ubuntu11.04. After upgrading and installing Ubuntu12.04, I found that the temperature in the center of the t400 was very high. I Googled it and found it was a problem with the t400 dual-graphics card, because I have installed Windows 7 and ubuntu, smart graphics card switching is enabled by default in Windows 7, so ubuntu is installed according to the default bios settings. This may be because ubuntu does not provide great support for dual-graphics cards, that's why the t400 temperature was too high. Once it caused automatic shutdown, you would I. High Temperature

I am the original system, and I am Ubuntu.11.04, Upgrade and install Ubuntu12.04Later, we found thatT400The temperature in the center of the back is extremely high,GoogleA moment later, I found thatT400Because I installedWin7AndUbuntuDual System,Win7Smart video card switching is enabled by default.BiosSet and installUbuntu, Which may beUbuntuThis problem is caused by poor support for dual-graphics cards.T400The temperature is too high. Once it caused automatic shutdown, you will know how high the problem is, probably70To80c.

No way to disable the independent video card, restart the machine onBiosThe independent video card is disabled and the independent video card is used. After the restart, the temperature actually drops. RatioWin7Slightly higher. But it is acceptable.

2. Pending (Suspend ) Cannot wake up

Run the following command:Sudo apt-get install pm-utils

In the ubuntu Software Center, find pm-utils, click more information, and select the other three uninstalled additional options, and set the application.

3. No sleep (Hibernate ) Option

Ubuntu 12.04Because some programsBug, So disabledHibernate. Description:

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 tododue 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!

If you want to enable the sleep option like me, perform the following operations:

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, pressCtrl-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.hibernateResultActive=yes

Restart your computer and you shoshould see it.

Enjoy!