The AMD CS5536 Geode on the ALIX.3D3 board has an included audio controller which headset output and microphone input is populated on the board. lspci lists the audio controller as
00:0f.3 Multimedia audio controller: Advanced Micro Devices [AMD] CS5536 [Geode companion] Audio (rev 01)
ALSA (Advanced Linux Sound Architecture) supports this chip. Continue reading
In contrary to most ALIX devices, the ALIX.3D3 has an integrated VGA controller and an Award BIOS (tinyBIOS doesn't support VGA), so why not attach a monitor.
Standard text mode is supported by default (and faster than graphical mode), but if you wish to change resolution, add a boot logo or even want to use a graphical boot screen like splashutils a framebuffer device is needed.
lspci lists the integrated VGA controller of the AMD Geode LX800 CPU as the video device:
00:01.1 VGA compatible controller: Advanced Micro Devices [AMD] Geode LX Video
Luckily the linux kernel supports this device directly and so no VESA framebuffer is needed. Continue reading
When I ordered the ALIX.3D3 board I thought installing Gentoo on this should be a piece of cake, but finally there were some stumbling blocks and that's why I want to summarize how I got gentoo running.
First of all, I recommend installing Gentoo on a normal desktop to get to know the installing process, which is a bit different from graphical installers of mainstream distros. The Gentoo Handbook is a great documentation how this done.
To install gentoo, you have to boot a minimal or "rescue" linux usually from cd/dvd. I tried to convice the bios to boot from a usb cd-rom drive, but I hadn't any success. Continue reading
LM86 on ALIX.3D3
The schematics of the ALIX.3D3 mention a temperature sensors LM86 on page 2 which external sensors pins are connected to the TDP/TDN pins of the Geode LX800 CPU. So this sensor should be able to measure CPU and mainboard temperature.
The LM86 ist connected by the SMBus (which is compatible to I²C if bus speed is below 100kHz, see Maxim's Appnote for detailed comparison) via the AMD CS5536 Geode companion. Continue reading
The AMD CS5536 Geode companion on the ALIX.3D3 board has an internal watchdog, beeing able to reboot the system by itself if it's hangup. To use this watchdog device, kernel support is needed. In kernel 2.6.29 you have to enable
Device Drivers --->
[*] Watchdog Timer Support --->
[*] Disable watchdog shutdown on close
<*> AMD Geode CS5535/CS5536 Watchdog
for beeing able to use the watchdog timer. The Disable watchdog shutdown on close is optional. Usually if the watchdog program terminates it tell's the kernel to disable the watchdog and the kernel does. With this option you can prevent the kernel from disabling the watchdog. Continue reading