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I use Ubuntu 14.04. My wireless works fine until I installed TP-Link TL-WN722N. I used this tutorial to install How to install driver for TP-Link TL-WN722N on Ubuntu 14.04?
Now Ubuntu don't see my defauld wireless card. I can use wireless only with TL-WN722N connected.

Edit:

lspci -nnk | grep -iA2 output:

net 04:00.0 Network controller [0280]: 
Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)
Subsystem: Broadcom Corporation Device [14e4:04b5] 
07:00.0 Ethernet controller [0200]:
Broadcom Corporation NetLink BCM5906M Fast Ethernet PCI Express [14e4:1713] (rev 02)
Subsystem: Lenovo IdeaPad S10e [17aa:3a23] Kernel driver in use: tg3

lsusb output:

Bus 002 Device 002: ID 090c:37b1 Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) 
Bus 002 Device 005: ID 0bc2:3320 Seagate RSS LLC SRD00F2 [Expansion Desktop Drive]      Bus 002 Device 006: ID 0cf3:9271 Atheros Communications, Inc. AR9271 802.11n     Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 008 Device 002: ID 045e:07b2 Microsoft Corp. 
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub 
Bus 003 Device 002: ID 0a5c:2150 Broadcom Corp. BCM2046 Bluetooth Device 
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
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antiks
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    Can you add the result of history | grep backport to your question along with 'lsusbandlspci -nnk | grep -iA2 net` – Jeremy31 Apr 03 '15 at 10:05
  • root@Lenovo-G550:~# lspci -nnk | grep -iA2 net
    04:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)
    Subsystem: Broadcom Corporation Device [14e4:04b5]
    07:00.0 Ethernet controller [0200]: Broadcom Corporation NetLink BCM5906M Fast Ethernet PCI Express [14e4:1713] (rev 02)
    Subsystem: Lenovo IdeaPad S10e [17aa:3a23]
    Kernel driver in use: tg3     – antiks Apr 03 '15 at 12:47
  • root@Lenovo-G550:~# lsusb Bus 002 Device 002: ID 090c:37b1 Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) Bus 002 Device 005: ID 0bc2:3320 Seagate RSS LLC SRD00F2 [Expansion Desktop Drive] Bus 002 Device 006: ID 0cf3:9271 Atheros Communications, Inc. AR9271 802.11n Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 008 Device 002: ID 045e:07b2 Microsoft Corp. Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 002: ID 0a5c:2150 Broadcom Corp. BCM2046 Bluetooth Device Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub – antiks Apr 03 '15 at 13:02

1 Answers1

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If you installed from backports-3.16-1

cd backports-3.16-1
sudo make uninstall

And reboot

Jeremy31
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