Dell M4800 install ubuntu 14.04

Intel Corporation Wireless 7260
serio1/input/input message
AMD FirePro M5100
- install the drivers
- switch between Intel graphics and AMD

Intel Corporation Wireless 7260

update the latest firmware:

# open  http://www.intel.com/support/wireless/wlan/sb/CS-034398.htm
# download Intel® Dual Band Wireless-AC 7260, latest firmware package 
#       iwlwifi-7260-ucode-22.15.8.0.tgz

tar xvzf iwlwifi-7260-ucode-22.15.8.0.tgz
sudo mv /lib/firmware/iwlwifi-7260-8.ucode ~/
sudo cp ~/Downloads/iwlwifi-7260-ucode-22.15.8.0/iwlwifi-7260-8.ucode /lib/firmware
sudo chown root:root /lib/firmware/iwlwifi-7260-8.ucode
#Restart computer

# or 
cd /lib/firmware
sudo mv iwlwifi-7260-8.ucode  iwlwifi-7260-8.ucode.bak
sudo wget  https://git.kernel.org/cgit/linux/kernel/git/egrumbach/linux-firmware.git/plain/iwlwifi-7260-8.ucode
sudo chown root:root /lib/firmware/iwlwifi-7260-8.ucode
# Restart computer

`serio1/input/input` message

After installing ubuntu 14.04, use dmesg to check the kernel message:

[12646.620535] input: DualPoint Stick as /devices/platform/i8042/serio1/input/input30
[12646.633581] input: AlpsPS/2 ALPS DualPoint TouchPad as /devices/platform/i8042/serio1/input/input29
....

The following commands fixed it for me (temporarily until reboot):

sudo rmmod psmouse
sudo modprobe psmouse proto=imps

And to make it permanent:

sudo gedit /etc/modprobe.d/options  #if no this file, create it
#Add this line:
options psmouse proto=imps

AMD FirePro M5100

install the drivers

Open Additional Drivers, install AMD graphics acceleratiors from fglrx-updates:

switch between Intel graphics and AMD

sudo amdcccle