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I have installed Ubuntu 12.04 on a brand new Toshiba Satellite C850-1GL. Everything seems fine except that it doesn't pick up my wireless router.

lspci

shows no wireless card but I know it's there as it worked fine under the previous operating system -- Windows 8. It is a Realtek card, but I don't know the exact model.

I have searched and found some possible solutions but everything I've tried has either failed to work or has made the problem worse by disabling the wireless card.

So I have gone back to a fresh installation of 12.04.

I have a very basic knowledge of Ubuntu so I'd appreciate a step-by-step guide on how to get the wireless card working.

Thank you!

Here's the output of lspci:

00:00.0 Host bridge: Intel Corporation Ivy Bridge DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Ivy Bridge Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation Panther Point USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4)
00:1c.2 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 3 (rev c4)
00:1d.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation Panther Point 6 port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05)

Here's the output of sudo lshw -c network:

*-network               
description: Ethernet interface
product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: eth0
version: 05
serial: 7c:05:07:27:78:a6
size: 100Mbit/s
capacity: 100Mbit/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 autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8105e-1.fw ip=192.168.0.104 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:42 ioport:2000(size=256) memory:c0004000-c0004fff memory:c0000000-c0003fff

I get no results for rfkill list all.

lsusb results:

Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 04f2:b307 Chicony Electronics Co., Ltd 

Update I just did lspci again after a restart and now the card appears:

02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05)

I now have a wireless connection option but it's greyed out with a message below saying "wireless connection disabled by hardware switch"

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1  
Please edit your question and include result of following commands, lspci , sudo lshw -c network & rfkill list all –  Web-E Aug 8 '13 at 14:57
    
I have done so. It looks like the wireless card isn't there. –  kelvingreen Aug 8 '13 at 15:13
    
Looks like a hardware failure... –  Web-E Aug 8 '13 at 15:19
1  
There are a rare few wireless cards that are attached to a USB bus internally. Just to be complete, please run and post: lsusb –  chili555 Aug 8 '13 at 16:04
    
I've added lsusb results, but it doesn't appear. However, the wireless card now appears after lspci. –  kelvingreen Aug 8 '13 at 19:04
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