Recently, while upgrading a computer with the AsRock Z790 Pro RS motherboard, it was discovered that the Realtek ALC897 audio codec is not officially supported by the Linux kernel. This can be a significant issue for users who prefer Linux distributions over proprietary operating systems. In this article, we will discuss the differences between the ALC898 and ALC897 audio codecs in terms of Linux kernel support.
ALC897: Overview and Linux Compatibility
The Realtek ALC897 is a high-definition audio codec that supports up to 7.1 channel audio and S/PDIF and HDMI interfaces. It was first introduced in 2012 and has been widely used in various motherboards and laptops. However, due to its age and limited hardware capabilities, it is not officially supported by the latest Linux kernels.
Linux Kernel Compatibility
The Linux kernel does not support the ALC897 codec out of the box. Users may need to install third-party drivers or compile the kernel with specific patches to get the audio working. One popular driver for the ALC897 is the "alsa-driver" package, which can be installed on various Linux distributions. However, the support may not be perfect, and users may encounter issues such as poor audio quality or intermittent connectivity.
ALC898: Overview and Linux Compatibility
The Realtek ALC898 is a successor to the ALC897, featuring improved audio processing capabilities, support for Dolby Digital Live and DTS Connect, and higher maximum sample rates. It was first introduced in 2013 and is commonly found in newer motherboards and laptops. The Linux kernel officially supports the ALC898 codec, making it a more reliable option for users who prefer Linux distributions.
Linux Kernel Compatibility
The Linux kernel supports the ALC898 codec through the "snd-hda-intel" driver, which is included in most Linux distributions. Users do not need to install any additional drivers or compile the kernel to get the audio working. The support is generally stable and provides good audio quality.
Code Snippets
Here are some code snippets demonstrating how to configure the audio settings for the ALC897 and ALC898 codecs in the Linux kernel.
ALC897
# For Debian-based distributions sudo apt-get install linux-headers-$(uname -r) build-essential sudo apt-get install alsa-utilsCompile the driver
git clone https://github.com/tunnelbear/alsa-lib-realtek.git cd alsa-lib-realtek make sudo make install
Load the driver
sudo modprobe snd-hda-intel sudo modprobe snd-hda-codec-realtek
ALC898
# For Debian-based distributions sudo apt-get install linux-headers-$(uname -r) build-essentialCompile the kernel module
git clone https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git cd linux make -j8 M=$(pwd) sudo make modules_install
Load the module
sudo modprobe snd-hda-intel
In conclusion, the Realtek ALC898 audio codec is a more reliable option for users who prefer Linux distributions, as it is officially supported by the Linux kernel. The ALC897, on the other hand, may require third-party drivers or kernel patches to get the audio working, and the support may not be perfect. Users who need the latest audio processing capabilities and want stable Linux support should consider motherboards or laptops with the ALC898 codec.