blocks|key|2332263|text|除了Powertop+(可从软件中心获得)，并且在使用电池时将所有选项都打开，您需要设置几个内核参数：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2332264|i915.i915_enable_rc6=1
i915.i915_enable_fbc=1
i915.lvds_downclock=1
pcie_aspm=force|code-block|syntax|javascript|2332265|添加到/etc/default/grub中，行以GRUB_CMDLINE_LINUX_DEFAULT="quiet+splash+pcie_aspm+i915.i915_enable_rc6=1+i915.lvds_downclock=1"开头|offset|length|style|CODE|2332266|编辑后打给sudo+update-grub+..。|2332267|这使我的电池寿命从4小时提高到10小时以上(没有网络)。|2332268|查看这篇文章http://www.williambrownstreet.net/blog/?p=387|entityMap|0|LINK|mutability|MUTABLE|url|http://www.williambrownstreet.net/blog/?p=387^0|0|0|3|H|O|2O|0|5|G|0|0|6|19|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|10|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|11|8|@$I|12|J|13|K|L]|$I|14|J|15|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|16|8|@$I|17|J|18|K|L]]|9|@]|A|$]]|$1|O|3|P|5|6|7|19|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1A|8|@]|9|@$I|1B|J|1C|1|1D]]|A|$]]]|S|$T|$5|U|V|W|A|$X|Y]]]]

Besides Powertop (available from Software Center), and turning all options to GOOD when on battery, you need to set several kernel parameters:

<pre><code>i915.i915_enable_rc6=1
i915.i915_enable_fbc=1
i915.lvds_downclock=1
pcie_aspm=force
</code></pre>

Add to <code>/etc/default/grub</code>, Line starting with <code>GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pcie_aspm i915.i915_enable_rc6=1 i915.lvds_downclock=1"</code>

call <code>sudo update-grub</code> after editing...

This boosted my battery life from 4 hours to over 10 hours (without networking)

Check out this post <a href="http://www.williambrownstreet.net/blog/?p=387">http://www.williambrownstreet.net/blog/?p=387</a>

blocks|key|4156207|text|内核团队还有一个电源管理调整页面：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4156208|https://wiki.ubuntu.com/Kernel/PowerManagement/PowerSavingTweaks|unordered-list-item|offset|length|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|1S|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@$E|O|F|P|1|Q]]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

The kernel team also has a Power Management tweaks page:

<ul>
<li><a href="https://wiki.ubuntu.com/Kernel/PowerManagement/PowerSavingTweaks">https://wiki.ubuntu.com/Kernel/PowerManagement/PowerSavingTweaks</a></li>
</ul>

blocks|key|4156249|text|以下是我尝试过的一些似乎有效的方法：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4156250|运行PowerTop。对我来说，这揭示了一些流散的gtk-gnash进程，即使在我退出Firefox之后，这些进程也没有消失。所以我做了ps+aux+%7C+grep+"gnash"，手动杀死了这些过程。|unordered-list-item|offset|length|style|CODE|4156251|停止DesktopCouch，per+停止使用“服务”启动桌面沙发？|4156252|停止UbuntOne同步，通过我怎么才能阻止布温图恩-同步？|4156253|我也可以建立一个“电池”公司的配置文件，没有铃铛和哨子，并切换到这一点，当我希望尽量减少公司的电力使用。|entityMap|0|LINK|mutability|MUTABLE|url|https://askubuntu.com/questions/47857/stop-and-start-desktop-couch-with-service|1|https://askubuntu.com/questions/123678/how-can-i-do-to-stop-ubuntuone-syncd^0|0|2|8|1W|L|0|J|F|0|0|F|F|1|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Y|8|@$E|Z|F|10|G|H]|$E|11|F|12|G|H]]|9|@]|A|$]]|$1|I|3|J|5|D|7|13|8|@]|9|@$E|14|F|15|1|16]]|A|$]]|$1|K|3|L|5|D|7|17|8|@]|9|@$E|18|F|19|1|1A]]|A|$]]|$1|M|3|N|5|6|7|1B|8|@]|9|@]|A|$]]]|O|$P|$5|Q|R|S|A|$T|U]]|V|$5|Q|R|S|A|$T|W]]]]

Here are things that I've tried that seem to work:

<ul>
<li>Run <code>PowerTop</code>. For me, that revealed some stray gtk-gnash processes that didn't disappear even after I quit Firefox. So I did <code>ps aux | grep "gnash"</code> and killed those processes manually. </li>
<li>Stop DesktopCouch, per <a href="https://askubuntu.com/questions/47857/stop-and-start-desktop-couch-with-service">Stop and start desktop couch with &quot;service&quot;?</a></li>
<li>Stop UbuntOne Sync, via <a href="https://askubuntu.com/questions/123678/how-can-i-do-to-stop-ubuntuone-syncd">How can I stop ubuntuone-syncd?</a></li>
</ul>

I may also set up a "battery" compiz profile that has no bells and whistles and switch to that when I want to minimize compiz's power use.

blocks|key|2332543|text|我发现登录Unital2d而不是3d非常有帮助：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2332544|如何安装并切换到Unified2D桌面？|unordered-list-item|offset|length|2332545|此外，从我个人的经验来看，如果你使用Chrome/Chromium，与Firefox相比，它会消耗大量的能量，所以当我处于电池状态时，我会切换到Firefox。此外，如果你能摆脱它，关闭Firefox中的Javascript也会大大减少它的耗电量，尽管在没有Javascript的情况下很难使用大多数现代网站。|entityMap|0|LINK|mutability|MUTABLE|url|https://askubuntu.com/questions/21686/how-do-i-install-and-switch-to-the-unity-2d-desktop^0|0|0|K|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Q|8|@]|9|@$E|R|F|S|1|T]]|A|$]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

I have found that logging into Unity 2d instead of 3d helps tremendously:

<ul>
<li><a href="https://askubuntu.com/questions/21686/how-do-i-install-and-switch-to-the-unity-2d-desktop">How do I install and switch to the Unity 2D desktop?</a></li>
</ul>

Also from my personal experience, if you use Chrome/Chromium it consumes a bunch of power when compared to Firefox, so when I am in a battery situation I switch to Firefox. Also if you can get away with it, turning off Javascript in Firefox will also dramatically cut its power usage, though it's difficult to use most modern websites without Javascript.

blocks|key|2332213|text|此外，木星也尝试Powertop+(在软件中心可用)-这是一个控制台应用程序，它做了两件伟大的事情:+1)监视器功耗，2)允许您轻松地应用一些小的电源调整。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2332214|还可以查看内核最近版本中的功率回归信息，最显著的是关于PCIe+ASPM的问题。|2332215|使用非加速桌面环境是个好主意，比如Unity2D或Gnome而不进行合成(没有效果)。|entityMap|0|LINK|mutability|MUTABLE|url|http://www.linuxpowertop.org/|1|http://www.webupd8.org/2011/06/linux-kernel-power-issue-fix.html^0|8|8|0|0|P|E|1|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|F|3|G|5|6|7|Y|8|@]|9|@]|C|$]]]|H|$I|$5|J|K|L|C|$M|N]]|O|$5|J|K|L|C|$M|P]]]]

Besides Jupiter try also <a href="http://www.linuxpowertop.org/" rel="nofollow">Powertop</a> (available in Software Center) - it's a console application which does two great things: 1) monitors power consumption 2) allows you to easily apply some little power tweaks.

Also check some info on the power regressions in recent versions of kernel, most notably <a href="http://www.webupd8.org/2011/06/linux-kernel-power-issue-fix.html" rel="nofollow">issues with PCIe ASPM</a>.

It's a good idea to use non-accelerated desktop environment, like Unity2D or Gnome Classic without compositing (no effects).

blocks|key|2332308|text|我也有一个Thinkpad+(T410)，并发现没有银弹的方法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2332309|有些是你能控制的。这只是知道所有消耗电力的系统，并确保它们不是贪婪的/性能最大化的。这里是我迈出的几步。他们让我的笔记本电脑停止过热到断电，但还有更多的工作要做。当然，确保你的BIOS是最新的(联想为它制作引导cds+)是这个列表中最大的一步。|offset|length|2332310|话虽如此，但也有一些东西夺取了权力，这些东西显然是不可改变的。正如您在powertop的"Tunables“选项卡中所看到的，有大量的”坏“S(耗电过程和硬件)表明，如果最终用户能够调整它们以使其变得更好，那就不太明显了。|entityMap|0|LINK|mutability|MUTABLE|url|https://askubuntu.com/a/157312/28944^0|0|16|2|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@$D|Q|E|R|1|S]]|A|$]]|$1|F|3|G|5|6|7|T|8|@]|9|@]|A|$]]]|H|$I|$5|J|K|L|A|$M|N]]]]

I also have a Thinkpad (T410) and discovered there's no silver bullet way. 

Some of it is in your control. That is just being aware of all the systems that consume power and making sure that they're not being ravenous/performance maximizing. <a href="https://askubuntu.com/a/157312/28944">Here</a> are a few steps I took. They made my laptop stop overheating to the point of powering down but there is still more to be done. Definitely make sure your BIOS is up to date (lenovo makes boot cds for it) is the biggest step of that list.

Having said that, there's also things taking power that are not apparently changeable. As you see in powertop's "Tunables" tab, there are a whole bunch of "Bad"s (power consuming processes and hardware) that it's not obvious if the end user can tweak them to become better.

I've recently installed Ubuntu 11.10 on a new Lenovo X220 laptop with a 9-cells battery. I have a trans-atlantic flight coming up, and I would like to use my laptop during it. Lenovo claims that this battery should last for a really long time. 

How can I configure my laptop to consume minimal power? I didn't see any detailed power management panel in the system settings, so how to I tweak it?

Also, can someone report a tried-and-tested configuration? Performance is not an issue, since I'm going to use it for coding or reading during the flight, not for playing games of watching movies. Playing audio would be nice, but not a must.

Laptop minimal power consumption tweaks

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

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我最近在一台新的联想X220笔记本电脑上安装了Ubuntu11.10 9电池。我有一架横渡大西洋的航班，我想在此期间使用我的笔记本电脑。联想声称，这款电池的续航时间应该很长。我如何配置我的笔记本电脑，以消耗最小的电力？我没有在系统设置中看到任何详细的电源管理面板，那么我如何调整它呢？另外，有人能报告一个试过和测试的配置吗？性能不是一个问题，因为我将使用它在飞行期间编码或阅读，而不是玩游戏看电影。播

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