RTL 8191SU I cannot manage to install wireless driver!!

**andy123456** · January 25th, 2011

Hi
So I am trying to install my Realtek 8191SU wireless Driver but because I am a noob I don't understand everything that they say in the read me file from where I downloaded the linux version of this driver. The Realtek 8191SU wireless driver can be foun here:

http://www.realtek.com.tw/Downloads/...Downloads=true

Also I found another site where someone explains how to instlall the driver but I don't know where driver directory is. Here is the site

http://www.downloadatoz.com/driver/a...on-ubuntu.html

Also if it helps I use and acer aspire Z5751 and I have ubuntu 64-bit installed.

Thanks in advance!

**chili555** · January 25th, 2011

Forget those instructions. As the kid who lives in my basement says, "Dat's messed up."

In order to compile this beauty, you will need to first do, in a terminal with an internet connection:

Code:

sudo apt-get install build-essential linux-headers-generic

Where is the file you downloaded? On your desktop? Right-click it and select 'Extract here.' A folder will be created called rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.201011 11. Inside it is a folder called 'driver.' Open it and see a file called rtl8712blahetc. Right-click it and select 'Extract here.' A folder will be created called rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.201011 11. Now back to the terminal:

Code:

cd Desktop/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20101111/driver/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20101111

You don't need to carefully type all that! Just type in:

Code:

cd Desktop/rtl

Press Tab and the rest of the first part will fill in. Add driver/rtl and press Tab and the remainder will fill in. Now do:

Code:

sudo su
make
make install
modprobe 8712u
exit

Post back and let us know how it goes.

**andy123456** · January 25th, 2011

Hello I tried the steps you have shown me but no wireless network shows up at all. Also after the modprobe 8712u command at the end nothing happened but there also was no error message. And also I have a RTL8191SU wireless card why did I need to type modprobe 8712u ( just curious). I also typed the Ifconfig command but no wlan0 has showed up. Thanks you for your help!!

**chili555** · January 25th, 2011

I have a RTL8191SU wireless card

Let's take a look and be sure. Please insert the device and run and post:

Code:

lsusb

why did I need to type modprobe 8712u ( just curious).

Because that's the name of the module that's built. In many cases, the name of the module doesn't match the identification of the card.

**andy123456** · January 25th, 2011

Maybe this will be helpful I have an all in one desktop computer and the wireless card is in the computer but because I am only familiar with opening up towers I didn't unplug anything in the computer so the wireless card is always inserted. Also when i needed to type cd Dekstop/rtl and press tab then I did not press enter but I continued and typed rtl/driver and pressed tab and then I clicked enter and then I typed all of the following commands, always pressing enter after each command. Did I do it right?? (just making sure) And here is the output for lsusb:

andy@andy-Aspire-Z5751:~$ lsusb
Bus 002 Device 008: ID 0bda:8172 Realtek Semiconductor Corp. RTL8191S WLAN Adapter
Bus 002 Device 007: ID 0bda:0158 Realtek Semiconductor Corp. USB 2.0 multicard reader
Bus 002 Device 006: ID 058f:6391 Alcor Micro Corp.
Bus 002 Device 005: ID 1cb6:6672
Bus 002 Device 004: ID 0c45:62c2 Microdia
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 04ca:0058 Lite-On Technology Corp.
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

**chili555** · January 25th, 2011

Bus 002 Device 008: ID 0bda:8172 Realtek Semiconductor Corp. RTL8191S WLAN Adapter

The module 8712u is correct for your device as reported in modinfo:

Code:

$ modinfo 8712u | grep 8172
alias:          usb:v0BDAp8172d*dc*dsc*dp*ic*isc*ip*

Let's see if it's loaded:

Code:

lsmod | grep 8712

And, let's see if there are any informative messages:

Code:

dmesg | grep -e 8712 -e wlan

Thanks.

Did I do it right??

If you got as far as modprobe 8712u and there was no error, you did it right.

**walt.smith1960** · January 25th, 2011

ID 0bda:8172 is the same as 2 of my adapters. The fix is easy and for me reliable. It's documented here:

http://www.mail-archive.com/ubuntu-b...sg2620217.html

**andy123456** · January 25th, 2011

chilli555 here is the outcome from both commands:

andy@andy-Aspire-Z5751:~$ lsmod | grep 8712
8712u 334039 0
andy@andy-Aspire-Z5751:~$ dmesg | grep -e 8712 -e wlan
andy@andy-Aspire-Z5751:~$

and also I tried to use the steps walt.smith1960 documented through the webpage here is the result:

andy@andy-Aspire-Z5751:~$ wget http://launchpadlibrarian.net/373876...8192sfw.bin.gz
--2011-01-25 12:30:56-- http://launchpadlibrarian.net/373876...8192sfw.bin.gz
Resolving launchpadlibrarian.net... 91.189.89.229, 91.189.89.228
Connecting to launchpadlibrarian.net|91.189.89.229|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 31817 (31K) [application/octet-stream]
Saving to: `rtl8192sfw.bin.gz'

100%[======================================>] 31,817 41.4K/s in 0.7s

2011-01-25 12:30:57 (41.4 KB/s) - `rtl8192sfw.bin.gz' saved [31817/31817]

andy@andy-Aspire-Z5751:~$ gunzip rtl8192sfw.bin.gz
andy@andy-Aspire-Z5751:~$ sudo mv rtl8192sfw.bin /lib/firmware/RTL8192SU/
[sudo] password for andy:
mv: cannot move `rtl8192sfw.bin' to `/lib/firmware/RTL8192SU/': Not a directory
andy@andy-Aspire-Z5751:~$

**walt.smith1960** · January 25th, 2011

Two things you need to do. One is to extract the .bin file, the other is to create a folder. I'm not at all fluent in command line so I do this via point and click. I must urge caution when using Nautilus with root privileges. The "I can't let you do that" protections are silenced when logged on as root and it's possible to make a total hash of your system so don't click without checking what you're about to do. Having said that:

in a terminal

Code:

gksu nautilus

Navigate to the location called for -> computer -> file system -> lib -> firmware. Then file - create a new folder and name it RTL8192SU. Copy the file you extracted from the download, rtl8192sfw.bin into the new empty folder. Close everything and reboot. The lovely blue light should come on and you should be in business.

**chili555** · January 25th, 2011

andy@andy-Aspire-Z5751:~$ gunzip rtl8192sfw.bin.gz
andy@andy-Aspire-Z5751:~$ sudo mv rtl8192sfw.bin /lib/firmware/RTL8192SU/
[sudo] password for andy:
mv: cannot move `rtl8192sfw.bin' to `/lib/firmware/RTL8192SU/': Not a directory
andy@andy-Aspire-Z5751:~$

Then let's create the directory:

Code:

sudo mkdir /lib/firmware/RTL8192SU
sudo mv rtl8192sfw.bin /lib/firmware/RTL8192SU/

The .bin file needs no extraction or other process. It just needs to be moved to the correct place which you have just done.

Is the ethernet cable attached at this time? Please detach it and reboot. Then run and post these tests again:

Code:

lsmod | grep 8712
dmesg | grep -e 8712 -e wlan

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