PDA

View Full Version : [ubuntu] slow wifi in 8.04



funtomas
April 27th, 2008, 02:22 PM
Dear All

I have installed ubuntu 8.04 on my dell inspiron 6400/E1505

everything is working fine but speed of internet connection is only half

my net connection in vista is 1500 kbps download / 256 kbps upload
in ubuntu it is 760/90

3945ABG intel wireless card
and driver is iwl3945

funtomas
April 28th, 2008, 01:10 PM
I forgot, I am using 64 bit version...

neptho
April 29th, 2008, 04:56 AM
Are you positive that you're using iwl and not ipl? I had this precise problem when an overzealous fixing of my modules, I accidently reinstated ipl. That was painful!

Open a terminal and run:

lsmod | egrep 'iwl|ipl'

If you see ipl, blacklist it, and reload iwl. If you see iwl; hopefully someone else can assist; I'm only running the 32 bit distribution on my system with a 3945.

pormogo
April 29th, 2008, 08:54 AM
I've had spotty wireless issues since moving to 8.04 on my m1330n. Using the old ipw3945 module I actually had decent luck. The signal strength was all over the place but it was more or less workable (sometimes it had to be loaded and unloaded but very rarely). On 7.10 I heard iwl was more stable, but it always seemed to die completely after a suspend on 7.10 so I never used it.

Now the module seems to work when suspending however I am having issues staying connected to any access points for long durations of time. I'm waiting for the issue to happen again so I can post some log data here. I am actually having a few problems (like backlight brightness) that I have not been able to fix. I will most likely just make a thread with all of my issues together since some of the common forum fixes (like FN+i[/down 3 brightness levels) do not seem to be working for me.

funtomas
April 29th, 2008, 04:49 PM
tomas@tomas-laptop:~$ lsmod | egrep 'iwl|ipl'
iwl3945 104820 0
iwlwifi_mac80211 251876 1 iwl3945
cfg80211 17680 1 iwlwifi_mac80211
led_class 7176 1 iwl3945

NeverM$4Me
April 29th, 2008, 05:33 PM
I'm having a similar slow connection speed / weak signal strength issue with intel 4965agn card in my m1530 on Hardy with iwl4965. I really hate to say this but on vista I'm constantly getting a strong signal with no slow down at all:(

igorgue
May 22nd, 2008, 03:05 PM
Same here, I had to use ndiswrapper... but I like iwl3945 because I can suspend with it :(, anybody know how to fix this error? or at least debug it?

sam_delta
May 22nd, 2008, 05:50 PM
just curious , have you guys made all updates on hardy>? , ive heard some people get their intel wireless fixed by updating, i duno if the same model,but its an intel.
just my 2 cents

sam

igorgue
May 23rd, 2008, 01:23 AM
Yes, I also installed the backported(linux-backported-modules enabling the backports repo) to get the latest driver, I might want to try with the older driver, but the one released on the CD wasn't working.

imopen
June 1st, 2008, 03:25 PM
I'm having a similar slow connection speed / weak signal strength issue with intel 4965agn card in my m1530 on Hardy with iwl4965. I really hate to say this but on vista I'm constantly getting a strong signal with no slow down at all:(

try ndiswrapper. I go fast as on Windows ;)