Discussion:
Intel PCI-E 4965AGN wireless iwn(4) isn't detected on Compaq 6715s laptop - USB bus?
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Anton Shterenlikht
2010-07-27 09:23:49 UTC
Permalink
Hi

I've HP Compaq 6715s laptop. I'm trying
to get wireless working. The laptop has
Intel 4965 4965AGN wireless WiFi PCI-E card 802.11N AGN
which is supported by iwn(4). I compiled iwn support
into the kernel as suggested by the man page.

However, the card doesn't appear in dmesg or
in pciconf -lv.

The laptop has a wireless toggle button, which is supposed
to enable/disable wireless. There is also an LED, which
lights on when wireless is enabled, and goes off
when wireless is off. Well, at least this is what
should happen.

On boot the LED is on.

If I press the button to disable wireless, the LED goes
off and in dmesg I see:

ugen0.2: <Broadcom Corp> at usbus0 (disconnected)

When I switch wireless back on again I see in dmesg:

ugen0.2: <Broadcom Corp> at usbus0

Does this mean that wireless sits on USB bus?

Does this give me a clue about how to debug
the problem further?

many thanks
anton
--
Anton Shterenlikht
Room 2.6, Queen's Building
Mech Eng Dept
Bristol University
University Walk, Bristol BS8 1TR, UK
Tel: +44 (0)117 331 5944
Fax: +44 (0)117 929 4423
Roland Smith
2010-08-01 13:54:42 UTC
Permalink
Post by Anton Shterenlikht
Hi
I've HP Compaq 6715s laptop. I'm trying
to get wireless working. The laptop has
Intel 4965 4965AGN wireless WiFi PCI-E card 802.11N AGN
which is supported by iwn(4). I compiled iwn support
into the kernel as suggested by the man page.
Did you also compile in the correct firmware module?
Post by Anton Shterenlikht
However, the card doesn't appear in dmesg or
in pciconf -lv.
Hmm. My 5100 AGN is correctly detected and used;

***@pci0:14:0:0: class=0x028000 card=0x12018086 chip=0x42328086 rev=0x00 hdr=0x00
vendor = 'Intel Corporation'
device = 'Carte Intel WiFi Link 5100 AGN (Intel WiFi Link 5100)'
class = network

iwn0: <Intel(R) PRO/Wireless 5100> mem 0xf2200000-0xf2201fff irq 18 at device 0.0 on pci14
iwn0: MIMO 1T2R, MoW, address 00:22:fa:a3:b6:50
iwn0: [ITHREAD]
iwn0: 11a rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
iwn0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
iwn0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36M
Post by Anton Shterenlikht
The laptop has a wireless toggle button, which is supposed
to enable/disable wireless. There is also an LED, which
lights on when wireless is enabled, and goes off
when wireless is off. Well, at least this is what
should happen.
On boot the LED is on.
If I press the button to disable wireless, the LED goes
ugen0.2: <Broadcom Corp> at usbus0 (disconnected)
ugen0.2: <Broadcom Corp> at usbus0
Does this mean that wireless sits on USB bus?
I don't think so. I think this is some kind of management interface? I get the
same messages when I switch off my 5100 AGN.
Post by Anton Shterenlikht
Does this give me a clue about how to debug
the problem further?
It puzzles me that it is not seen in the pciconf output. Could it be that the
wireless is disabled in the laptop's BIOS?

Roland
--
R.F.Smith http://www.xs4all.nl/~rsmith/
[plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated]
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Anton Shterenlikht
2010-08-02 12:36:06 UTC
Permalink
Post by Roland Smith
Post by Anton Shterenlikht
Hi
I've HP Compaq 6715s laptop. I'm trying
to get wireless working. The laptop has
Intel 4965 4965AGN wireless WiFi PCI-E card 802.11N AGN
which is supported by iwn(4). I compiled iwn support
into the kernel as suggested by the man page.
Did you also compile in the correct firmware module?
yes, I did
device iwn
device iwnfw

and this is from dmesg (verbose boot):

% grep iwn /var/run/dmesg.boot
firmware: 'iwn6050fw' version 0: 463692 bytes loaded at 0xffffffff80a42184
firmware: 'iwn1000fw' version 0: 335056 bytes loaded at 0xffffffff808aa884
firmware: 'iwn4965fw' version 0: 187972 bytes loaded at 0xffffffff808fc634
firmware: 'iwn5000fw' version 0: 353240 bytes loaded at 0xffffffff8092a554
firmware: 'iwn5150fw' version 0: 337400 bytes loaded at 0xffffffff80980a04
firmware: 'iwn6000fw' version 0: 454608 bytes loaded at 0xffffffff809d30d4
%

so the modules are loaded but the device didn't attach.
Post by Roland Smith
Post by Anton Shterenlikht
However, the card doesn't appear in dmesg or
in pciconf -lv.
Hmm. My 5100 AGN is correctly detected and used;
vendor = 'Intel Corporation'
device = 'Carte Intel WiFi Link 5100 AGN (Intel WiFi Link 5100)'
class = network
iwn0: <Intel(R) PRO/Wireless 5100> mem 0xf2200000-0xf2201fff irq 18 at device 0.0 on pci14
iwn0: MIMO 1T2R, MoW, address 00:22:fa:a3:b6:50
iwn0: [ITHREAD]
iwn0: 11a rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
iwn0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
iwn0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36M
well.. I get nothing:

% pciconf -lv|grep iwn
%
Post by Roland Smith
Post by Anton Shterenlikht
The laptop has a wireless toggle button, which is supposed
to enable/disable wireless. There is also an LED, which
lights on when wireless is enabled, and goes off
when wireless is off. Well, at least this is what
should happen.
On boot the LED is on.
If I press the button to disable wireless, the LED goes
ugen0.2: <Broadcom Corp> at usbus0 (disconnected)
ugen0.2: <Broadcom Corp> at usbus0
Does this mean that wireless sits on USB bus?
I don't think so. I think this is some kind of management interface? I get the
same messages when I switch off my 5100 AGN.
Post by Anton Shterenlikht
Does this give me a clue about how to debug
the problem further?
It puzzles me that it is not seen in the pciconf output. Could it be that the
wireless is disabled in the laptop's BIOS?
I can't see any wireless BIOS option.

I reset to default options, so now the only
"disabled" options are under "Device Configurations"

Swap Fn/Ctrl Keys Disable
Fan Always on while on AC Power Disable
Windows Vista(TM) Direct App Launch Disable

The default options also show under "Built-In
Device Options":

Embedded Bluetooth Device Radio Enable
Wake on LAN Enable

but these shouldn't really be affecting WLAN.


Maybe I should check the connectors on the card.
The old Broadcom card had 2 connectors, this
Intel card has 3, so I connected only terminals
1 and 2 to the laptop - there are no other wires.

Maybe I should have another look at this..

many thanks
anton
--
Anton Shterenlikht
Room 2.6, Queen's Building
Mech Eng Dept
Bristol University
University Walk, Bristol BS8 1TR, UK
Tel: +44 (0)117 331 5944
Fax: +44 (0)117 929 4423
Roland Smith
2010-08-02 13:49:12 UTC
Permalink
Post by Anton Shterenlikht
% pciconf -lv|grep iwn
%
And if you grep for Intel?
Post by Anton Shterenlikht
The old Broadcom card had 2 connectors, this
Intel card has 3, so I connected only terminals
1 and 2 to the laptop - there are no other wires.
Wires on a built-in wireless? I don't follow you.

Roland
--
R.F.Smith http://www.xs4all.nl/~rsmith/
[plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated]
pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725)
Anton Shterenlikht
2010-08-02 14:07:40 UTC
Permalink
Post by Roland Smith
Post by Anton Shterenlikht
% pciconf -lv|grep iwn
%
And if you grep for Intel?
% pciconf -lv | grep -i intel
%
Post by Roland Smith
Post by Anton Shterenlikht
The old Broadcom card had 2 connectors, this
Intel card has 3, so I connected only terminals
1 and 2 to the laptop - there are no other wires.
Wires on a built-in wireless? I don't follow you.
sorry, I meant connectors. But I think this is all fine.

There are 2 connectors coming from laptop
to mini pci-e wireless: they are numbered 1 and 2.
There are 3 matching connectors on the wireless
device, labeled 1, 2 and 3. So I connect 1 to 1
and 2 to 2. This leaves connector 3 on the wireless
device unconnected.

many thanks
anton
--
Anton Shterenlikht
Room 2.6, Queen's Building
Mech Eng Dept
Bristol University
University Walk, Bristol BS8 1TR, UK
Tel: +44 (0)117 331 5944
Fax: +44 (0)117 929 4423
Roland Smith
2010-08-02 15:03:18 UTC
Permalink
Post by Anton Shterenlikht
Post by Roland Smith
Post by Anton Shterenlikht
The old Broadcom card had 2 connectors, this
Intel card has 3, so I connected only terminals
1 and 2 to the laptop - there are no other wires.
Wires on a built-in wireless? I don't follow you.
sorry, I meant connectors. But I think this is all fine.
There are 2 connectors coming from laptop
to mini pci-e wireless: they are numbered 1 and 2.
There are 3 matching connectors on the wireless
device, labeled 1, 2 and 3. So I connect 1 to 1
and 2 to 2. This leaves connector 3 on the wireless
device unconnected.
As far as I can tell from the pictures, [see
http://www.intel.com/network/connectivity/products/wireless/wireless_n/overview.htm]
these cards have the following connectors:

- PCIe & USB on the bottom
- 3 coaxial antenna connectors on the other side
- two power connections

I'm assuming you are talking about the antenna connectors... AFAICT from the
product brief, it supports either two or three antennas, so that shouldn't be
a problem.

Is the card getting power?

Roland
--
R.F.Smith http://www.xs4all.nl/~rsmith/
[plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated]
pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725)
Anton Shterenlikht
2010-08-02 16:04:45 UTC
Permalink
Post by Roland Smith
Post by Anton Shterenlikht
Post by Roland Smith
Post by Anton Shterenlikht
The old Broadcom card had 2 connectors, this
Intel card has 3, so I connected only terminals
1 and 2 to the laptop - there are no other wires.
Wires on a built-in wireless? I don't follow you.
sorry, I meant connectors. But I think this is all fine.
There are 2 connectors coming from laptop
to mini pci-e wireless: they are numbered 1 and 2.
There are 3 matching connectors on the wireless
device, labeled 1, 2 and 3. So I connect 1 to 1
and 2 to 2. This leaves connector 3 on the wireless
device unconnected.
As far as I can tell from the pictures, [see
http://www.intel.com/network/connectivity/products/wireless/wireless_n/overview.htm]
- PCIe & USB on the bottom
- 3 coaxial antenna connectors on the other side
- two power connections
I'm assuming you are talking about the antenna connectors... AFAICT from the
product brief, it supports either two or three antennas, so that shouldn't be
a problem.
Is the card getting power?
How can I check?

If the two plated holes at the top left and top
right corner are the power connections, then
probably yes. I screwed the 2 screws back
into their places through these holes after
putting the card in place.

Maybe the device is just broken.

Also, it seems to be a clone of the genuine
intel device. It doesn't look exactly like
in the above link (instead of the top three
chips I have one silver box, but perhaps
the Intel pic shows the card with this casing
removed).

The technical specification from the Intel page
mentions an LED. I don't see any LED fire up
when the laptop boots or is on. Perhaps this
is an evidence for the card being broken.

If I plug the old (the one installed in the
laptop when I bought it, 2007) Broadcom device
instead, it gets detected:

***@pci0:48:0:0: class=0x028000 card=0x1371103c chip=0x431214e4 rev=0x02 hdr=0x00
vendor = 'Broadcom Corporation'
device = 'BCM4310 UART (Wireless Ethernet Adapter)'
class = network

(I haven't checked bwi(4) yet, but will do
if the Intel card comes to nothing).

So to conclude, I'll have to assume that the
Intel card is dead, so it seems..

many thanks for your help
anton
--
Anton Shterenlikht
Room 2.6, Queen's Building
Mech Eng Dept
Bristol University
University Walk, Bristol BS8 1TR, UK
Tel: +44 (0)117 331 5944
Fax: +44 (0)117 929 4423
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