How old is t400

It can also sense when you return and automatically wake and unlock the Nano. Called Human-Presence Detection, it's simultaneously awesome and a tad creepy. This setting and many more can be controlled through the laptop's Commercial Vantage app.

In the app you'll find everything from battery and power settings to audio tweaks for its mics and speakers to turning on and off the keyboard's various hotkeys. As you might expect, the controls are designed to improve your work experience, such as setting the laptop's mics and speakers there are four of both to improve your VoIP call quality while also suppressing keyboard noise.

There are always trade-offs when you make a laptop this small, thin and light but Lenovo manages to keep things comfortable. For instance, it has a inch display but gives you some extra vertical room to work with its aspect ratio.

The display looks good right out of the box. However, that extra resolution might have something to do with its shorter-than-anticipated battery life of 8 hours, 22 minutes on our video streaming test. For watching the occasional video or listening to a webcast they would be fine, but headphones come highly recommended.

To get 10 hours of battery life from a notebook this size, most people think you would need a huge battery attached to the bottom of the case, another battery taking the place of the optical drive, and a big battery sticking out the back. In this situation the notebook is only consuming roughly 8. In dedicated graphics mode under the same settings battery life falls by exactly 2 hours down to 7 hours and 41 minutes, and power draw increases to The 6-cell battery managed 6 hours and 4 hours and 28 minutes respectively.

For those thinking about gaming with the T on battery power, you should have no problem with the 9-cell battery. While it is a big drop from nearly 10 hours under normal circumstances, you have more than enough time to play around through a few classes or meetings if needed. Frequent travelers will enjoy the T as a movie playing notebook on flights or just trying to pass time wherever. When watching XVID encoded movies off the hard drive the 9-cell had an estimated 6 hours and 45 minutes of battery life, drawing 13 watts of power.

Plenty of time to cover two full length movies. For those who must still use optical media for movies, you lose more than an hour of battery life with the optical drive needing to spin throughout the video. Port selection rates average on the T, with 3 USB ports and no digital video output. For those thinking about using legacy external cards, you may want to reconsider that option. One feature that has been on ThinkPads almost forever is the ThinkLight, which is a small white LED located above the screen that illuminates the keyboard.

On every other model we have reviewed that has this light, it works as intended and gives a little light on the keys. Your night vision is taken away and in the end it is a useful feature turned worthless by lack of proper design. Not exactly sure how it made it past quality control, but unless you have the screen tilted forward to an extreme degree you end up as blind as a bat.

The cooling system seemed greatly improved over the prior generations, letting the notebook run whisper quiet and very cool to the touch under most circumstances. I say most, since gaming did seem to make it run on the high side.

When not gaming, one thing really working towards the system temperatures advantage was the very lower power consumption. Consuming almost half the power of the previous generation really helped reduce overall temperatures. Most if not all of those could be updated to their current release, but I am interested in seeing how the latest installers work on it, so I am simply going to start over and install each of those and more from scratch.

I could choose one of the lightweight desktops for this older system, but I want to see how it holds up if I make a completely 'normal' installation, so I will try KDE Plasma first. The entire Leap installation process took less than 20 minutes, from the time that I booted the USB stick to the time that it rebooted to the installed system.

I accepted the defaults in all of the installation screens; the only things I actually had to choose were the keyboard layout because mine isn't US Ascii , and my user account information.

The installed system works perfectly. A quick check of the hardware looks like almost everything is working -- with the exception of Bluetooth. I'm not sure what the problem there might be, it just says that Bluetooth is "disabled", but it won't let me enable it.

I'm going to keep an eye on this and check it with the other distributions before getting too involved in it. The built-in display came up at the correct resolution X , and when I put the T on the docking station and connected an external DVI display, it was automatically recognized and configured at its maximum resolution x , and the two displays were laid out as an extended desktop. Next up is Fedora 26 Workstation. Fedora is pretty much the 'flagship' for Gnome 3, so I will install that version.

Again, the installation worked perfectly, and this time took less than 15 minutes to complete. Rebooting to the installed system brought up the standard Fedora Gnome 3 desktop:. I am impressed by the response of this old laptop, especially with these first two rather heavy-duty desktops. Boot time is a bit slow, of course, but once it is up and running everything seems quite normal and comfortable, applications and utilities launch quickly, and running programs are very snappy.

Again, a quick check of the hardware showed that everything seemed to be working properly. In fact, after booting with the laptop in the docking station, but with the external display not connected, when I then plugged in the display Fedora recognized it, and added it as an extended desktop without any fuss -- and without a reboot.

In further investigating this, I did find another small problem -- my newer Logitech m and m mice do not show up in the Bluetooth device selection dialog. Debian also uses Gnome 3 by default, but it would be pretty boring to do the same as I did with Fedora.

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