Unable to get wifi activated

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ygk_123
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Unable to get wifi activated

Post by ygk_123 » 2013/08/21 16:37:00

Hi,

I have recently bought a lenovo c series C225 all-in-one desktop. I have installed CentOS 5.9 32 bit on it.
But cannot activate the Realtek wifi card which needs RTL8188CE driver. I downloaded the driver form Realtek
but while installing is throwing errors. I will paste the errors shortly.


Thanks
ygk_123

scottro
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Unable to get wifi activated

Post by scottro » 2013/08/21 16:50:31

The elrepo repo may have a driver for that.
See http://elrepo.org/tiki/tiki-index.php

A quick look in their "K" section indicates an 8187 driver at least.

Judging from another thread, someone had luck with the kmod 8192 driver.
http://www.centos.org/modules/newbb/viewtopic.php?topic_id=36167

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AlanBartlett
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Re: Unable to get wifi activated

Post by AlanBartlett » 2013/08/21 17:02:45

[quote]
ygk_123 wrote:
But cannot activate the Realtek wifi card which needs RTL8188CE driver.
[/quote]
May we please see the output returned by --

[code]
[b]lspci -nn | grep -i net[/b]
[/code]
That will show the relevant [i]Vendor:Device ID Pairing[/i], which is crucial for deciding as to what will be your next step.

ygk_123
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Joined: 2013/08/21 16:20:51

Re: Unable to get wifi activated

Post by ygk_123 » 2013/08/22 10:23:47

Thank you all for your replies. I will paste the output results shortly.

ygk_123
Posts: 13
Joined: 2013/08/21 16:20:51

Re: Unable to get wifi activated

Post by ygk_123 » 2013/08/28 10:25:18

Hi All,

This is the information
-------------
[root@localhost ~]# lspci -nn | grep -i net
03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter [10ec:8176] (rev 01)
04:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 06)
[root@localhost ~]# uname -a
Linux localhost.localdomain 2.6.18-348.el5 #1 SMP Tue Jan 8 17:57:28 EST 2013 i686 athlon i386 GNU/Linux
[root@localhost ~]#
----------------

The inbuilt wifi adapter is not powerful enough to catch the signal. I tested it in windows. Now I want to go for a usb wifi adapter. Could you suggest which one is compatible
with CentOS 5.9 ?


Thanks

scottro
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Re: Unable to get wifi activated

Post by scottro » 2013/08/28 11:46:57

Just to doublecheck. Are you sure that it wasn't turned off in the BIOS or by a hardware switch? I know that on a couple of laptops I've had, there was a little switch to turn the wireless on and off, and on others there will be a BIOS setting. Other laptops have a function key to turn it on and off. Before giving up on the card you have, I'd check all those things first.

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AlanBartlett
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Re: Unable to get wifi activated

Post by AlanBartlett » 2013/08/28 13:52:20

[quote]
Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter [10ec:8176]
[/quote]
Thank you for that information.

If we go to the [url=http://elrepo.org/tiki/DeviceIDs]Device IDs[/url] page and search for [b]10ec:8176[/b] we will see --

[code]
[b]r8192ce_pci.ko

pci 10EC:092D kmod-r8192ce
[color=0000ff]pci 10EC:8176 kmod-r8192ce[/color]
pci 10EC:8177 kmod-r8192ce
pci 10EC:8178 kmod-r8192ce
pci 10EC:8191 kmod-r8192ce[/b]
[/code]
So we now know that the correct driver will be supplied by downloading and installing the [url=http://elrepo.org/tiki/kmod-r8192ce]kmod-r8192ce[/url] package, available from the [url=http://elrepo.org]ELRepo Project[/url].

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