Fedora 12 Linux and 802.11n

JoshGriffin · 11-25-2009, 05:06 PM

Sorry if this is a dumb question. I've tried searching for the answer to this and can't seem to find it. Does linux currently support 802.11n speeds? I just got an Intel 4965agn wireless card for my laptop and it only connects at 54Mb/s. I'm using Fedora 12 and a DIR-615 draft 2.0 n router.

~JoshGriffin

nimnull22 · 11-25-2009, 05:50 PM

What driver is used for Intel 4965agn wireless card?

kbp · 11-25-2009, 05:52 PM

As far as I remember, wireless N doesn't increase the speed yet, just changes the frequency the gear operates on - 5Ghz I think ... once the standard settles down the speeds may increase

cheers

mjmwired · 11-25-2009, 06:06 PM

I beleive it is possible. I saw this:
http://www.thinkwiki.org/wiki/Talk:I..._kernel_2.6.25

JoshGriffin · 11-25-2009, 06:10 PM

nimnull22

I'm using iwlagn. I'm not sure other than that. It comes with the kernel since 2.6.24. http://www.intellinuxwireless.org/

kbp

Thank you for that info. I wasn't aware N was at 5Ghz. I haven't used 802.11n yet so I don't know much about it. My card is running on 2.4Ghz @ 54Mb/s which indicates it's connected at G speeds.

JoshGriffin · 11-25-2009, 06:12 PM

mjmwired:

thanks I'll check that out

nimnull22 · 11-25-2009, 06:22 PM

Quote:

Originally Posted by JoshGriffin

nimnull22

I'm using iwlagn. I'm not sure other than that. It comes with the kernel since 2.6.24. http://www.intellinuxwireless.org/

How about iwl4965?

JoshGriffin · 11-25-2009, 11:07 PM

Here is the output of lspci. iwl4965 doesn't seem to be listed.

Code:

[Josh@JLaptop ~]$ lsmod
Module                  Size  Used by
fuse                   52712  2 
rfcomm                 58236  4 
sco                    16184  2 
bridge                 43992  0 
stp                     1988  1 bridge
llc                     4960  2 bridge,stp
bnep                   15028  2 
l2cap                  32564  16 rfcomm,bnep
sunrpc                158388  1 
ip6t_REJECT             4620  2 
nf_conntrack_ipv6      17548  2 
ip6table_filter         3168  1 
ip6_tables             11144  1 ip6table_filter
ipv6                  239428  24 ip6t_REJECT,nf_conntrack_ipv6
cpufreq_ondemand        6160  2 
acpi_cpufreq            8848  0 
dm_multipath           14472  0 
uinput                  6852  0 
snd_hda_codec_idt      53124  1 
arc4                    1616  2 
snd_hda_intel          25176  2 
ecb                     2492  2 
snd_hda_codec          60584  2 snd_hda_codec_idt,snd_hda_intel
iwlagn                120940  0 
snd_hwdep               6900  1 snd_hda_codec
b44                    23240  0 
snd_seq                46960  0 
iwlcore               143216  1 iwlagn
ssb                    37084  1 b44
snd_seq_device          6232  1 snd_seq
mac80211              149776  2 iwlagn,iwlcore
snd_pcm                64932  2 snd_hda_intel,snd_hda_codec
firewire_ohci          19824  0 
wmi                     5952  0 
firewire_core          39676  1 firewire_ohci
btusb                  15032  2 
ricoh_mmc               3452  0 
bluetooth              78336  9 rfcomm,sco,bnep,l2cap,btusb
cfg80211               73044  3 iwlagn,iwlcore,mac80211
snd_timer              17992  2 snd_seq,snd_pcm
sdhci_pci               7156  0 
mii                     4120  1 b44
dell_laptop             4504  0 
sdhci                  17552  1 sdhci_pci
dcdbas                  8524  1 dell_laptop
crc_itu_t               1620  1 firewire_core
mmc_core               48656  1 sdhci
snd                    50908  12 snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_seq,snd_seq_device,snd_pcm,snd_timer
iTCO_wdt               10444  0 
nvidia               9974244  42 
iTCO_vendor_support     2812  1 iTCO_wdt
soundcore               5672  1 snd
i2c_i801               10284  0 
rfkill                 16220  3 bluetooth,cfg80211,dell_laptop
snd_page_alloc          7892  2 snd_hda_intel,snd_pcm
joydev                  9320  0 
video                  19088  0 
output                  2468  1 video
nouveau               499356  0 
ttm                    34264  1 nouveau
drm_kms_helper         22688  1 nouveau
drm                   135064  3 nouveau,ttm,drm_kms_helper
i2c_algo_bit            4820  1 nouveau
i2c_core               23120  5 nvidia,i2c_i801,nouveau,drm,i2c_algo_bit
[Josh@JLaptop ~]$

nimnull22 · 11-25-2009, 11:18 PM

do please

modinfo iwl4965

rkski · 11-26-2009, 01:47 AM

Hi
I have the same card and also the same router as you.
I'm using the iwlagn driver and i'm currently connected at 130M.
I'm pretty sure it operates at 2.4GHz

kbp · 11-26-2009, 03:16 PM

Apologies for misleading, according to wikipedia it operates at both or either of 5/2.4Ghz

http://en.wikipedia.org/wiki/IEEE_802.11#802.11n

JoshGriffin · 11-26-2009, 04:09 PM

@nimnull22

[Josh@JLaptop ~]$ modinfo iwl4965
ERROR: modinfo: could not find module iwl4965

@rkski

That's good news! It makes me wonder if it's a setting on the router then, or if you have a different card as me. Can you tell me exactly what card you have? (lcpsi | grep Wireless). If it's the same I'll mess around with the settings on the router. I have the latest firmware for the router (H/W version B2, F/W version 2.25).

Here's the exact card I have:

0c:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection (rev 61)

@kbp

It's okay, thank you for the URL.

Thank everyone for your help!

Josh

nimnull22 · 11-26-2009, 04:44 PM

Why I'm asking about iwl4965 driver, because I think it should be used with Intel 4965agn.

But since rkski said that iwlagn works to him, so it should works to you as well.
Check your AP settings if 802.11n is enabled.

JoshGriffin · 11-26-2009, 06:37 PM

802.11n is enabled.

My AP settings:

802.11 Mode: Mixed 802.11n and 802.11g
WPA Mode: Auto (WPA or WPA2)

I'll mess around with the wireless settings on my router and see if I can get it to connect through 802.11n.

nimnull22 · 11-26-2009, 06:58 PM

You know, there is some way to find out more about wireless card, only if driver supports it.
Try to type: iwlist wlan0 modulation

If it is supported = List the modulations supported by the device and the modulations currently enabled.