arch-wiki-md-repo/wiki/_content/english/HASEE K650D i7 D3.md

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The HASEE K650D-i7-D3 is a powerful laptop, on which Arch-Linux runs fine. For a light-weight window manager, some additional configuration should be setup.

## Contents

*   [1 Touchpad synaptics](#Touchpad_synaptics)
*   [2 Backlight](#Backlight)
*   [3 Video cards](#Video_cards)
*   [4 Audio](#Audio)
*   [5 Webcam](#Webcam)
*   [6 Software access point](#Software_access_point)
*   [7 See also](#See_also)

## Touchpad synaptics

[xf86-input-synaptics](https://www.archlinux.org/packages/?name=xf86-input-synaptics) should be installed for a light-weight window manager (but not Gnome or KDE). In some cases, addition configuration is necessary for single-click, double-click and middle-click:

 `/etc/X11/xorg.conf.d/70-synaptics.conf` 
```
Section "InputClass"
    Identifier "touchpad"
    Driver "synaptics"
    MatchIsTouchpad "on"
        Option "TapButton1" "1"
        Option "TapButton2" "3"
        Option "TapButton3" "2"
EndSection

```

For details, see [Touchpad Synaptics](/index.php/Touchpad_Synaptics "Touchpad Synaptics").

## Backlight

Hot keys for backlight might not work after installation of Arch-Linux, so [xorg-xbacklight](https://www.archlinux.org/packages/?name=xorg-xbacklight) is necessary for backlight configuration. See [Backlight#xbacklight](/index.php/Backlight#xbacklight "Backlight").

## Video cards

Install [bumblebee along with Nvidia and Intel drivers](/index.php/Bumblebee "Bumblebee"). [nvidia-dkms](https://www.archlinux.org/packages/?name=nvidia-dkms) is recommended for auto configuration after kernel updates. Acceleration mode of the Intel video card should be changed to "uxa", according to [Intel graphics#SNA issues](/index.php/Intel_graphics#SNA_issues "Intel graphics"), so that firefox will not fail to scroll smoothly, and 3D games will run normally.

## Audio

After [regular sound check](/index.php/Advanced_Linux_Sound_Architecture "Advanced Linux Sound Architecture"), additional configuration should be conducted. Run `aplay -l` to find default build-in Audio Analog Stereo. In current machine, you can find the card ID with 1 and the device ID with 0\. Then following configuration file can be created as following:

 `~/.asoundrc` 
```
defaults.pcm.card 1
defaults.pcm.device 0
defaults.ctl.card 1
```

After that, run `alsamixer` to unmute.

## Webcam

The webcam is supported fully by default. [MPlayer](/index.php/Webcam_setup#MPlayer "Webcam setup") or [FFmpeg](/index.php/Webcam_setup#FFmpeg "Webcam setup") can be used for test.

## Software access point

A Wi-Fi access point can be created in this computer following [Software access point](/index.php/Software_access_point "Software access point"). However, WPA/WPA2 will not work properly in [channel](https://en.wikipedia.org/wiki/List_of_WLAN_channels#Interference_Concerns "wikipedia:List of WLAN channels") 1 ~ 9, so [channel](https://en.wikipedia.org/wiki/List_of_WLAN_channels#Interference_Concerns "wikipedia:List of WLAN channels") must be set at 10 or more in the configuration:

 `/etc/hostapd/hostapd.conf` 
```

channel=10 
```

## See also

*   [Laptop](/index.php/Laptop "Laptop")
*   [Microcode](/index.php/Microcode#Enabling_Intel_microcode_updates "Microcode") should be installed for cpu.
*   UEFI/GPT mode is recommended for a rapid boot process; the default boot logo can be hidden under UEFI.
*   Micphone should be set to 0, and webcam should be covered for potential risk.