Re: wlan disappeared

[Beco <rcb@beco.cc>]

On 6 August 2015 at 01:04, <briand@aracnet.com> wrote:

On Wed, 5 Aug 2015 23:23:35 -0300
Beco <rcb@beco.cc> wrote:

> Hi guys,
>
> Something odd happened today, on my first clean boot of the day.
> (notebook DELL vostro v131)
>
> Simply, no wlan0 at all.
>

there is often a hardware switch which disables WLAN.

Is it possible that it's been turned off ?

lspci should _absolutely_ show it's existence regardless of whether or not the drivers have been loaded.  Either it's off, if it's a separate card it's come loose/disconnected, or if it's on-board then you probably have a hardware failure.

Brian

Hi Brian,

Thanks for trying to make sense of this mess.

This notebook has onboard wifi, no "physical" switch, but a combination of keys FN+F2 that would supposedly turn it on or off. This combination never worked since day one of all older debians I started with, and I never used it. But since you mentioned, I tried some keystrokes, no luck though.

Let me put lspci here. Maybe I'm mistaken.

lspci shows:

# lspci

00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)

00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)

00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)

00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)

00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)

00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)

00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5)

00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5)

00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b5)

00:1c.7 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 8 (rev b5)

00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)

00:1f.0 ISA bridge: Intel Corporation HM67 Express Chipset Family LPC Controller (rev 05)

00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05)

00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)

05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)

0b:00.0 USB controller: Texas Instruments TUSB73x0 SuperSpeed USB 3.0 xHCI Host Controller (rev 02)

 

As you can see... No wifi there.

I also read carefully lshw again. Nope. Nothing.

Thanks,

Beco

--

Dr Beco
A.I. researcher

"I know you think you understand what you thought I said but I'm not sure you realize that what you heard is not what I meant" -- Alan Greenspan

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