I bought Acer V7 – 482PG and installed Ubunntu 14.04. Everything looked good until I found some problems with my WiFi adapter.
My network sometimes unexpectedly disconnected and sometimes I couldn’t connect to WiFi network.
There is workaround which works on my computer.
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Find your adapter version
- Open terminal
- Run command
lspci
- You can see output like this
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09) 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09) 00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 09) 00:14.0 USB controller: Intel Corporation Lynx Point-LP USB xHCI HC (rev 04) 00:16.0 Communication controller: Intel Corporation Lynx Point-LP HECI #0 (rev 04) 00:1b.0 Audio device: Intel Corporation Lynx Point-LP HD Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 1 (rev e4) 00:1c.2 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 3 (rev e4) 00:1c.3 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 4 (rev e4) 00:1c.4 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 5 (rev e4) 00:1d.0 USB controller: Intel Corporation Lynx Point-LP USB EHCI #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation Lynx Point-LP LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation Lynx Point-LP SATA Controller 1 [AHCI mode] (rev 04) 00:1f.3 SMBus: Intel Corporation Lynx Point-LP SMBus Controller (rev 04) 01:00.0 3D controller: NVIDIA Corporation GK107M [GeForce GT 750M] (rev ff) 04:00.0 Network controller: Intel Corporation Wireless 7260 (rev 73) 05:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5287 (rev 01) 05:00.1 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 14)
- Find line which contains “Network controller: Intel Corporation Wireless”, at the end of line you can find device model (in my case 7260)
Go to the Intel web and download latest firmware
- Open browser and go to the URL: http://www.intel.com/support/wireless/wlan/sb/CS-034398.htm
- Find your wireless adapter in table.
(in my case: iwlwifi-3160-ucode-22.15.8.0.tgz) - Download firmware (tgz) file
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Firmware installation
- Open terminal
- Check which version is installed in your system
ls /lib/firmware/iwlwifi-7260*
e.g if you see this output, you have installed version “7”
/lib/firmware/iwlwifi-7260-7.ucode
- Backup old firmware to your home folder
sudo mv /lib/firmware/iwlwifi-7260-8.ucode ~/
- Go to the folder where is new downloaded firmware
cd ~/Downloads
- Unzip downloaded firmware
tar xvzf iwlwifi-7260-ucode-22.15.8.0.tgz
- Copy new firmware version to /lib/firmware
sudo cp ~/Downloads/iwlwifi-7260-ucode-22.15.8.0/iwlwifi-7260-8.ucode /lib/firmware
- Set correct file owner
sudo chown root:root /lib/firmware/iwlwifi-7260-8.ucode
- Check if everything was successfully done by command
ls -l /lib/firmware/iwlwifi-7260-8.ucode
You should see similar output
-rw-r--r-- 1 root root 674628 kvě 29 13:38 /lib/firmware/iwlwifi-7260-8.ucode
- Restart computer
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