Lenovo Thinkpad T430

Hardware information
GPU: Intel HD Graphics 4000: seventh generation, Ivy Bridge (released in 2012). You can get GPU information in Firefox in.

Firmware setup
Press Enter during boot to enter BIOS, RAM testing. F12 to choose boot media.

RAM


ThinkPad T430 supports up to 16 GB of SO-DIMM DDR3/DDR3L memory. Max frequency allowed is 2133 MHz. DDR3L is better because it is 1.35V instead of 1.5V so it uses 10 percent less battery with the same performance as DDR3. To check how much of memory the laptop has:

This shows one 4GB module is installed and a second is unpopulated but available.

To find out the frequency of installed RAM modulesː

When a second RAM module is installed, they must operate on the same frequency, but size can differ (for example 4 GB plus 8 GB).

Battery
Get current battery level (useful when using i3 or Sway window managers without GUI battery indicator) ː

For all details about the batteryː

Wi-Fi
The Linux firmware package is needed since the Centrino Advanced-N 6205 AGN wifi adapter requires a specific firmware file.

Firmware file that is needed is the. It can be obtained by installing the Linux firmware package: or.

After every kernel update (after ) execute

For more info see iwlwifi.

Ethernet
To try to use Ethernet on laptop boot (run by init system):

Bluetooth
Thus a Linux firmware file is needed. See Broadcom Bluetooth for additional info.

Microcode
Intel released microcode updates that fixes fault on processors. Install the officially published microcode package. For more info see Intel microcode.

Kernel
Gentoo specific Menuconfig. More info at Kernel.

Ready to use .config for Linux 5.

Compiler settings
More info is available at:
 * GCC optimization
 * MAKEOPTS
 * EMERGE_DEFAULT_OPTS

Packages settings
For more info: CPU_FLAGS_X86

USE flags
You can get or review my /etc/portage configs.

With Intel Modesetting DDX as video driver and libinput as input driver add the USE flags  and.

Firefox video performance
Video performance is better on, but from 2021 you can  and enable WebRender in Firefox to use GPU for video and get higher FPS. Also in firefox in  enable   (tested on Firefox 86).

To check that it works: emerge  and run  : it must show loading when Firefox plays YouTube.

See more at https://en.wikipedia.org/wiki/Video_Acceleration_API

Also Gentoo Wiki about Intel.

battery charge thresholds
Use:. Example config and instructions can be found at: github.com/teleshoes/tpacpi-bat.

fan control
Use:.

Fingerprint reader
Use:. Instructons can be found at:

ThinkLight
Fn-Space to enable/disable the ThinkLight, useful to see the keyboard in low light conditions.

Displays
To add more displays, there are several methods: one external display, or attach two external displays but internal panel will be disabled, or connect a dock to have 3 external displays (internal will be disabled).

Fastboot (reduce flickering on boot)
Uncomment and add:and regenerate grub, as usual after kernel update:See more about fastboot.

Fix screen tearing
When watching some videos, some frames may be out of sync with the screen rate. Screen tearing can be fixed in multiple ways. For Xorg: Thinkpad T430 has Intel GPU, create this file:

And emerge (because still not implemented in the default xf86-video-modesetting).

Reboot the system for the new configuration to take effect.

Another option against screen tearing: use Sway window manager, because underlying Wayland protocol has no screen tearing by design, but note that with Wayland you cannot use ffmpeg for screen grabbing.

Alter brightness
Brightness value live in a file, to react current valueː To alter brightnessː

Alternatively, install or  to control brightness with the  or  tools respectively.