# Acer AO722-BZ454

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This article or section does not follow the Laptop page guidelines.

Reason: Stub (Discuss in Talk:Acer AO722-BZ454#)

This article or section is out of date.

Reason: This page is ancient (Discuss in Talk:Laptop#Old laptop pages)

In addition, a discussion of general setup is available from the main article on the Acer Aspire One, although the hardware is quite different. A discussion of various other issues and tweaks is available in the Ubuntu forums.

## Configuration

### Video

The `xf86-video-ati` driver is recommended, read ATI for more information.

### Networking

Note: If you experience freezes when turning on the wireless card/connecting to wireless networks, select "Network Boot" as first boot device in the BIOS. (Press F2 during Acer boot screen to access the BIOS options.)

Wireless ethernet driver `brcmsmac` should automatically load at startup.

This should no longer be needed, but in the past, the modules `bcma` and `acer-wmi` caused conflicts and had to be blacklisted.

Setup may be further configured by reading Wireless network configuration.

### Audio

Initially, audio does not work, except for beeping. The problem may be corrected by editing `/usr/share/alsa/alsa.conf` and replacing every instance of `card 0` with `card 1`. (This also works on the AO725-0488.)

As of kernel 3.1, the headphone jack is correctly supported.

#### HDMI Audio issue

The hdmi video display works fine out of box (as of 2014-1-1, using ATI driver), however, HDMI audio does not work. Searching the forum, there is some indication this is due to video driver issue.

### Beep on Power Cord Plug-In/Out

To lower the loudness of the beep when the power cord to an acceptable level, open alsamixer ,select the HDA ATI SB sound card using `F6` and mute the Beep by using arrow chars and then pressing `m`

### Dual Boot

See Windows and Arch dual boot for general information. Note that this netbook does not come with recovery CDs. If an attempt to set up dual boot goes awry and you cannot boot the machine at all, or cannot boot into Windows, you can restore the original Windows configuration by booting into /dev/sda1, the recovery partition, as if it were an ordinary Windows installation. The recovery program says it will wipe the whole disk but will only wipe the partition on which Windows resides. (You can install grub from the Arch installation media onto a thumbdrive and take it from there.)

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