LG R400

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Contents

LG R400

Working:

  • X11
  • Sound
  • Suspend
  • LAN
  • wlan (needs ndiswrapper)
  • cardreader
  • extra buttons

Unknown:

  • hibernate
  • express card

Disk Partitions

The factory default partition table is a mess and the Arch Linux installation programm has troubles with it. I booted an ubuntu installation CD and partitioned the drive with that, then cancelled the installation and continued with Arch Linux. I think parted or gparted does the trick, so you can use any Linux live CD with it.

Graphics Card / X11

With the default xf86-video-i810 Xorg driver has used the wrong resolution. After installing the new xf86-video-intel drivers it worked perfectly.

WiFi / Wlan Network

Unfortunately the atheros card (AR5007EG misreported as AR5006EG by linux) is not yet supported by madwifi, see http://madwifi.org/ticket/1192. But ndiswrapper works nicely, once a windows driver is found. I could not get the one provided by LG to extract, so i used this one: http://www.atheros.cz/drivers/ar5xxx/xp32-5.3.0.56-whql.zip Unzip it ndiswrapper -i the .inf file add ndiswrapper to /etc/rc.conf miodules, deinstall madwifi and reboot.

Update Madwifi (OSS driver) support is now available with madwifi-newhal-svn from aur. Which should also be available with the 0.10.0 release of madwifi. I need to first do ifconfig ath0 up otherwise it might not find wifi nets.

Brightness Control

To control the brightness of the display, modprobe video (the ACPI video module), via /etc/rc.conf. Then you have /sys/class/backlight/acpi_video0/brightness. Use

cat < /sys/class/backlight/acpi_video0/max_brightness > /sys/class/backlight/acpi_video0/brightness

to get maximum brightness.

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