Lenovo S20-30

The BIOS and the boot menu can be accessed by using the alternative power button, which is a small circular one on the left side near by the main power button.

Works after installing the proprietary driver module or , which supports Broadcom BCM43142. See the detailed Broadcom wireless page for further information.

The BCM43142A0 Bluetooth module should be recognized by the next kernel version right after 4.2.5. More information can be found in the commit message at kernel.org and in the Bluetooth article.

See Intel graphics and xrandr.

Backlight control works after adding the following Kernel boot parameter, which is set by default since linux kernel version 3.16:

video.use_native_backlight=1

Use one of the backlight utilities (tested with light) to adjust the backlight and control it with keyboard shortcuts by the method of your choice.

With kernel 4.0.x backlight can still be changed, but the keys for increasing or decreasing backlight brightness do not work anymore.

Install . See ALSA for detailed information. To turn on the internal microphone, start and increase the volume.

This requires the module . Load the moduleand blacklist , and , or install from the AUR. Then rebuild the kernel image with mkinitcpio -P linux as root.

The fan mode can be changed with provided by the ideapad-laptop kernel module, where X defines the fan cooling mode, i.e X can be one of the following possibilities:

• 1 = interval cooling
• 2 = regulate fan speed depending on temperature (default, but shows 133 or 5 by inspecting with cat)

In fan cooling mode 2, the fan starts, if the CPU temperature reaches 35°C and stops after the temperature is lower than 31°C.