Wifi not working with Debian 9 on Sony Vaio Z laptop

Kernels & Hardware, configuring network, installing services

Wifi not working with Debian 9 on Sony Vaio Z laptop

Postby wkhan69 » 2017-10-04 03:58

Hi,

(Note: I posted this problem in a "Solved" thread of a very similar issue but received no responses, so I'm posting it as a new topic here.) I just installed Debian 9 stretch on a Sony laptop Z series (that originally had windows 7 pro), and the wifi doesn't work. I can't even see any setting for wifi control (in the cinnamon desktop environment). Specifically,

1) There is no wireless icon (desktop tray) in the lower RHS of the screen (see photo). -Unless the wireless info comes as part of the wired network desktop tray.

2) My network manager sees no wifi networks around (there should be many near where my laptop is located). See photo. It looks as though the wifi network manager doesn't see any wireless network hardware even. (Note: I have my physical wireless switch on the laptop turned "on").

When I did an lspci command, I got the following as a network controller, which I assume is the same as the wifi controller.

Code: Select all
network controller: Intel Corporation Centrino Advanced-N 6200 (rev 35)


This controller is different from some other similar posts that talk about Qualcomm Atheros controller hardware.
Anyway, here's what I did so far:

I added the following to my sources.list:

Code: Select all
    deb http://security.debian.org stretch/updates main contrib non-free
    deb http://httpredir.debian.org/debian stretch main contrib non-free
    deb http://httpredir.debian.org/debian stretch-updates main contrib non-free
    deb-src http://httpredir.debian.org/debian stretch main contrib non-free
    deb-src http://httpredir.debian.org/debian stretch-updates main contrib non-free


and then did:

Code: Select all
# apt-get update
# apt-get install firmware-ipw2x00 wireless-tools


Any help would be appreciated.
Thanks!

https://photos.app.goo.gl/XL4ny9lE1S6yxXIz1

https://photos.app.goo.gl/BoIU44gb00Euwmi72
wkhan69
 
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Re: Wifi not working with Debian 9 on Sony Vaio Z laptop

Postby dilberts_left_nut » 2017-10-04 04:32

AdrianTM wrote:There's no hacker in my grandma...
User avatar
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Re: Wifi not working with Debian 9 on Sony Vaio Z laptop

Postby wkhan69 » 2017-10-04 22:10

I tried the steps in the link you sent, including installing firmware-iwlwifi, configuring the wireless interface, and uninstalling network-manager. After rebooting, I still don't see any wifi network. In addition, when I click on the desktop tray network icon and select "Network Settings", I get the error message:

Code: Select all
The system network services are not compatible with this version

https://photos.app.goo.gl/H5LtbdJlOpdQelph2

and when I select "Network Connections", I get:

Code: Select all
Failed to execute child process "nm-connection-editor" (No such file or directory)

https://photos.app.goo.gl/DVSLldUfBHI1rQ6z1

Any ideas?
wkhan69
 
Posts: 4
Joined: 2017-10-01 21:41

Re: Wifi not working with Debian 9 on Sony Vaio Z laptop

Postby wkhan69 » 2017-10-26 22:39

I got some help, and now the issue is resolved! Essentially the solution was to install
wicd-gtk
The guy who fixed my issue said not to use 'Gnome Network manager' as it isn't very good. wicd is much better. debian by default uses 'Gnome Network manager'.
I believe I still needed the 'firmware-ipw2x00 wireless-tools'

the right firmware packets depends on the wifi hardware chips used. For another laptop, the correct firmware could be firmware-realtek and firmware-linux-free
wkhan69
 
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