So I've just performed a "clean" install of Ubuntu 16.04 LTS ("Xenial Xerus") on my son's Lenovo G50-45 to Ubuntu and as you can see here, I had problems in the past with Wi-Fi disappearing... Previously, I was able to solve this problem and this was the same thing I have tried under Ubuntu 16.04 LTS, however this time round, that solution did not work.
Any ideas?
Update 1: I have tried a "clean" install in both "UEFI mode" (with Secure Boot disabled via the UEFI setup), and also a second "clean" install with "Legacy Mode" enabled... The ethernet cable was connected both times between multiple restarts (i.e. the laptop had Internet access), however this laptop still has no Wi-Fi.
Update 2: Having performed a "clean" install, dkms status now shows nothing... With (using an ethernet cable) or without Internet access, nothing is shown except a new Terminal prompt (This is after I had to install dkms using sudo apt-get install dkms ).
Update 3: sudo lshw -C network displays:
*-network description: Network controller product: QCA6164 802.11ac Wireless Network Adapter vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:01:00.0 version: 20 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: driver=ath10k_pci latency=0 resources: irq:37 memory:f0800000-f09fffff *-network description: Ethernet interface product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:02:00.0 logical name: enp2s0 version: 10 serial: 50:7b:9d:45:9b:62 size: 1Gbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8168g-3_0.0.1 04/23/13 ip=10.0.0.22 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s resources: irq:33 ioport:2000(size=256) memory:f0c04000-f0c04fff memory:f0c00000-f0c03fff If I'm not mistaken, this means that Ubuntu 16.04 LTS can "see" the (integrated) wireless card... It just can't use it.
31 Answer
is probably what you are looking for.
Proposed fix from this link (step 1 is unnecessary for 16.04):
2) Get rid of the firmware folder for this card that's included with Ubuntu:
sudo rm -r /lib/firmware/ath10k/QCA6174/ 3) Download the latest firmware:
wget 4) Unzip the downloaded file. Inside the ath10k-firmware-master folder is a folder named QCA6174. Copy the QCA6174 folder to /lib/firmware/ath10k:
unzip master.zip sudo cp -r ath10k-firmware-master/QCA6174/ /lib/firmware/ath10k/ 5) Rename two of the firmware files like so:
cd /lib/firmware/ath10k/QCA6174/hw2.1/ sudo mv firmware-5.bin_SW_RM.1.1.1-00157-QCARMSWPZ-1 firmware-5.bin cd /lib/firmware/ath10k/QCA6174/hw3.0/ sudo mv firmware-4.bin_WLAN.RM.2.0-00180-QCARMSWPZ-1 firmware-4.bin 6) Reboot your computer. Run "lshw -C network" to see if your card is recognized. You can delete the files you downloaded earlier:
cd ~ rm master.zip rm -r ath10k-firmware-master/ Verified to work on Ubuntu 16.04 LTS (with kernel 4.4.0-21-generic)
Last updated April 22, 2016
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