ASUS Eee PC 1015pn

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This page includes general information regarding Asus EEE PC 1015pn and related notes on installing/using Arch Linux on it.

System Specs

  • CPU: Intel Atom Dual-Core N550 (1.5 GHz)
  • RAM: 1GB 1066MHz DDR3
  • HDD: 250 5400RPM
  • GPU: nVidia ION2 with Optimus
  • Display: 10,1" 1024 x 600 pixels LCD display
  • Wireless: TODO
  • Bluetooth: TODO
  • Webcam: TODO
  • Card Reader: TODO
  • Extras: 3 USB 2.0 ports, Bluetooth 3

nVidia ION 2 with Optimus

Optimus doesn't work at all but it is possible to choose which graphical card will be used on next reboot.

You can get 2 'modes' :

  • By default (if you don't do anything) the machine starts with the Nvidia beeing the only VGA controller visible (so it will use the ION chip).
  • Using some tools you can start with the Intel and Nvidia VGA controller visible. In this mode the Intel controller is used and it's possible to powerdown the Nvidia part.

To switch between those modes you will need acpi_call.

Installing acpi_call

Manual Install:

git clone
cd acpi_call
sudo insmod acpi_call.ko


Using AUR (recommended):

yaourt -S acpi_call-git

Add acpi_call module into /etc/rc.conf

Selecting Video Card

To select Intel + Nvidia on next reboot :

echo "\OSGS 0x03" > /proc/acpi/call

Note: You will need to do this at each boot as long as you want to stay with the Intel part (If you don't do this the Eee will start with only the Nvidia Ion part).

You can check the current mode with :

echo "\AMW0.DSTS 0x90013" > /proc/acpi/call
cat /proc/acpi/call

For example if the result is 0x30003 :

  • First byte 0x03 means mode 3 (returnvalue &= 3)
  • Logical AND with 0x10000 and right-bitshift 16 bytes gives whether Optimus is supported (1=true, 0=false): here 1

After reboot you can see with lspci that the Intel VGA controller is visible. You can now power down the ion part with (you'll need the acpi_call module loaded):

echo "\_SB.PCI0.P0P4.DGPU.DOFF" > /proc/acpi/call

Check consumption

You can check consumption with :

cat /proc/acpi/battery/BAT0/state 


cat /proc/acpi/battery/BAT0/info

To Do

Manage to get the xf86-video-intel and nvidia packages installed (specific libgl being used by each one)