• Contact: AlvonsiusAlbert

• Make: Lenovo
• Brand: 3000 G400

• Website: http://www-07.ibm.com/lenovoinfo/id/notebooks/3000hho/g-series/

Current Issues

• Internal speakers do not turn off when headphones are plugged in (see below)
• The fan almost always on. The temperature of CPU is almost at 50C all the time, on full load it can goes to 64C. Because of this, on normal usage at normal environment temperature, the battery power will enough for 2.5 hours, on lower environment temperature it could span into 3 hours.
• Wireless driver needs Restricted Driver (see below)

System Info

•  $ sudo dmidecode -s system-manufacturer
   LENOVO
   $ sudo dmidecode -s system-product-name
   Lenovo 3000 G400 
   $ sudo dmidecode -s system-version
   C-Notebook XXXX
   $ sudo lspci
  00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03)
  00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)
  00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)
  00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02)
  00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 02)
  00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 02)
  00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 (rev 02)
  00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 02)
  00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 02)
  00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 02)
  00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 02)
  00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 02)
  00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
  00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02)
  00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller (rev 02)
  00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 02)
  03:00.0 Network controller: Broadcom Corporation BCM94311MCG wlan mini-PCI (rev 01)
  04:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5906M Fast Ethernet PCI Express (rev 02)
   $ lsusb
  Bus 005 Device 007: ID 0bda:0158 Realtek Semiconductor Corp. 
  Bus 005 Device 001: ID 0000:0000  
  Bus 003 Device 004: ID 09da:000a A4 Tech Co., Ltd 
  Bus 003 Device 001: ID 0000:0000  
  Bus 002 Device 001: ID 0000:0000  
  Bus 001 Device 001: ID 0000:0000  
  Bus 004 Device 001: ID 0000:0000   

PS: A4 Tech Co., Ltd is the mouse plugged on the notebook

Hardware details

Notes

Handling sound leakage when headphone jack is plugged:

• Open Volume Control

• If Front slider is not showed, activate it from Edit > Preferences

• Mute the Front slider while headphone's jack is plugged in.

Setting up wireless driver:

• This notebook is using Broadcom 43xx family
• Install bcm43xx-fwcutter from Synaptic

• Run System > Administration > Restricted Driver Manager

• Click the Checkbox beside "Firmware of Broadcom 43xx chipset family"
• Choose the source of firmware (the option is on a file or downloading from internet)
• For safety reason, restart Ubuntu.