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Lenovo Thinkpad E145

About using this laptop

Lenovo E145: Backlight

Symptoms

The backlight brightness of an Lenovo E145 laptop with a Radeon HD 8240 graphics controller can not be adjusted on Debian. Neither the Fn-F7/Fn-F8 keys are working nor any other interface.

Solution

Force the use of the kernel Radeon driver by installing the (non-free) Radeon firmware.

Background

There are several drivers that may be used by the Linux kernel and the X Windows System. The trick is forcing the correct one, as not all drivers support the backlight.

Lenovo E145: Wireless network

Symptoms

The wireless network adapter on Lenovo E145 laptops is not supported out of the box on Debian. Though you can see the PCI device (using lspci), you do not have a wireless interface (as checked with ifconfig -a, for example).

Wireless access point

My wireless access point at home is actually a Realtek 2500 wireless card on my server. I use my server as the place to put access policies and as a broker for all traffic (my public IP address is also on it, instead of on the modem in front of it).

Getting USB to boot

Most things just seem to work on my new Lenovo Thinkpad E145 laptop - but, as always, some things just do not work out of the box. Problems with WIFI are almost expected, but not being able to boot from USB is plain weird.

Lenovo E145: Swap Function and Ctrl keys

Symptoms

The <Fn> key on this laptop is at the place most experienced keyboard users would expect the <Ctrl> key to be.

Solution

You can swap both keys around by a BIOS setting. This may be a bit confusing for others who want to use your computer, though. This also works properly in Linux.

Procedure

Enter the BIOS setup.

Lenovo E145: Function keys

Symptoms

Function keys do not seem to work properly. Perhaps they so very unexpected things. This may be very disconcerting if you interrupt normal startup by pressing <enter> and then are unable to select one of the menu options.

Solution

You have to press the <Fn>-button at the same time as the function key in order to use it as a function key.

You can switch this behaviour around by setting a BIOS option.

Procedure

Enter the BIOS setup.

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by Dr. Radut