Now I am using the buildin driver in Ubuntu 9.10 called ath5k for my wireless netcard (chipset AR5007). The madwifi driver still is a better choice but it is a bit annoying to rebuild and reinstall the madwifi driver after every kernel update.
I found that the ath5k driver has a serious problem: If your AP is set to use channels 1-4 then the driver cannot connect to the wireless network. It keeps prompting for the network key.
When I configure the AP to use channels 5-13 then there is no problem at all.
This problem I have found when using different AP’s from Zyxel, Netgear and Linksys – so my conclusion is that it must be a driver error.
You can find a similar description on ThinkPad adapters here. Notice that they cannot use channels 7-13.
Kategori: Noget om IT
Trådløse netværk
Når man som jeg bor tæt på sine naboer, så gælder det om at finde en god kanal til sit trådløse adgangspunkt. Nu er udviklingen af Netstumbler gået i stå (det gode gamle værktøj til trådløse netværk), men heldigvis er der andre som har samlet stafetten op og skabt programmet inSSIDer.
inSSID’er kan det samme som Netstumbler blot med et fint grafisk interface. Programmet fungerer også i Windows Vista og Windows XP 64-bit.
Du kan hente inSSIDer hos MetaGeek
Reklame SMS spam på mobiltelefonen
Ja, så skete det også for en af vores mobiltelefoner. Mathilde får nu en gang imellem en reklame SMS fra wagner.dk og det er ikke noget hun har tilmeldt sig. Logikken siger vel egentligt også at en 10-årig pige nok ikke interesserer sig synderligt for herretøj.
SMS’en fra 1204 indeholder teksten “Der er nu ekstra god grund til at købe tøj på wagner.dk. Køb på sms.wagner.dk og få Tipsbladet GRATIS! Tilbud gælder kun online på sms.wagner.dk t.o.m 16/3”
– og der er jo lige hvad en 10-årig har brug for at få at vide.
Jeg har forsøgt at finde en vejledning på wagner.dk på hvordan man stopper det, men det er ikke til at finde.
Mit gæt er at en rigtig kunde på wagner.dk har tastet sit mobilnummer forkert… men hvordan hulen finder man ud af det?
Det er iøvrigt firmaet Unwire.dk der står bag servicenummeret 1204.
Jeg har kontaktet både Telmore og Unwire.dk for få stoppet SMS’erne.
Opdatering den 06.05.2010:
Så fik Mathilde igen reklame SMS’er fra wagner.dk. Eftersom butikken øjensyneligt ikke vil respektere at man ikke ønsker deres reklamer, så vil jeg opfordre alle om at undgå netbutikken wagner.dk – lad være med at bruge den!
Remove meta name=”generator” content=”WordPress”
How to Remove <meta name=”generator” content=”WordPress”
The following simple solution will allow you to quickly remove the <meta name=”generator” content=”WordPress 2.X” /> tag from WordPress
- Login to your WordPress admin panel
- Navigate to Design -> Theme Editor and click Theme Functions (functions.php) from the list of theme files
- Just before the closing ?> tag, add the following: remove_action(‘wp_head’, ‘wp_generator’);
- Click the Update file button and go view the source of your site
If all goes well, the <meta name=”generator” content=”WordPress” /> should be removed.
Avira Personal automatic update fails
1) Goto the folder C:WINDOWSsystem32driversetc
2) Open the file named “hosts” with Notepad
3) Add the following lines after the entry “127.0.0.1 localhost”
62.146.66.181 dl1.avgate.net
62.146.66.182 dl2.avgate.net
62.146.66.183 dl3.avgate.net
62.146.66.184 dl4.avgate.net
80.190.143.23 dl5.avgate.net
80.190.143.23 dl6.avgate.net
62.146.66.178 dl7.avgate.net
62.146.66.179 dl8.avgate.net
80.190.143.239 dl9.avgate.net
80.190.143.230 dl10.avgate.net
4) Save & Exit
Now try automatic update in Avira Personal
This tip only works for Avira Personal!
2D barcodes
Jeg bemærkede i en nyhed på nettet, at man i Japan anvender barcodes til at udveksle informationer mellem mobile enheder i stedet for at anvende infrarød- eller en bluetooth forbindelse. Selvfølgelig er det den yngre del af befolkningen, der først har taget det til sig.
Det handler om at præsentere information i en form som kan aflæses med et mobil kamera og dekodes direkte af f.eks. mobil telefonen.
Jeg surfede lidt rundt på nettet og fandt masser om 2D barcodes og jeg kan kun undre mig over at vi i Europa ikke anvender det mere.
Hvad kan man så anvende 2D barcodes til? Jo, man kan på en nem måde overføre information til din mobiltelefon, f.eks. en link til en hjemside, starte et opkald, sende en SMS, sende kontaktinformation eller blot en note.
Prøv med 2D barcoden herunder:
Hvis du vil prøve at generere din egen 2D barcode, så kig ind hos snapmaze.com
På min Nokia E51 var der allerede et program til at læse og dekode 2D barcodes. Hvis det ikke ligger på din telefon i forvejen, så kan du hente det hos upcode.fi
WLAN on Acer TravelMate 4310 with Ubuntu 9.04
Finally I have resolved the ever returning issue with WLAN support on my Acer Travelmate 4310.
The madwifi driver supports my chip (AR5007) and I have no longer any problems with connecting to Wireless networks.
The solution can be found here.
It is not the most user friendly way of getting Wireless to work but it is a way! Just follow the instructions as they are printed.
Oh – remember to reinstall the madwifi driver each time you upgrade the kernel. So remember to keep the driver handy on your laptop.
Læs videre “WLAN on Acer TravelMate 4310 with Ubuntu 9.04”
Optimize Firefox 3
I have experienced that Firefox 3 can be very slow during startup and when scrolling. It seams that these problems can be partially fixed.
Here are my favorite tweaks:
In the address bar type about:config and hit enter
Change the following:
network.dns.disableIPv6 false to true
network.http.max-connections 30 to 96
network.http.max-connections-per-server 15 to 32
network.http.max-persistent-connections-per-server 6 to 8
network.http.pipelining false to true
network.http.pipelining.maxrequests 4 to 8
network.http.proxy.pipelining false to true
Acer TravelMate 4310 WLAN and Ubuntu 9.04
I have the following problem:
My Wifi works without problems under kernel 2.6.28-11 but it fails under kernel 2.6.28-13. I’m using the ath_pci driver.
Apparently there has been a change in the ath_pci wifi driver in kernel 2.6.28-13 that my hardware do not agree with.
Some people reports that the ath5k driver should be working but I can’t make it work on my machine.
By the way – I’m using Wicd as my wireless network manager without problems under kernel 2.6.28-11 in Gnome and KDE.
My advice for the moment is to stick with the 2.6.28-11 kernel to avoid wifi problems.
See also this link at Ubuntu forums
Ubuntu 9.04 sound problem fixed
I have a brand new installation of Ubuntu 9.04 (with KDE4 as my default UI) on my desktop PC.
My problem was no sound in Youtube.com and in the game Openarena. However the login sound in Ubuntu played loud and clear.
I located the problem to be related to my ATI HD 2400 PCI-E graphics card. Alsa had this configured as my primary sound card and not my onboard VIA sound card.
This is how I solved it:
Step 1:
Go to a terminal and write:
aplay -l
The output will be something like this:
**** List of PLAYBACK Hardware Devices ****
card 0: HDMI [HDA ATI HDMI], device 3: ATI HDMI [ATI HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: V8237 [VIA 8237], device 0: VIA 8237 [VIA 8237]
Subdevices: 4/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
card 1: V8237 [VIA 8237], device 1: VIA 8237 [VIA 8237]
Subdevices: 1/1
Subdevice #0: subdevice #0
In this output I can see my VIA sound card as Card 1, Device 0
Step 2:
Then I edited a file called asound.conf located in /etc (the file was not there so I created it)
sudo kate /etc/asound.conf
and put in the following configuration:
pcm.!default {
type hw
card 1
device 0
}
save the file
Step 3:
restart ubuntu.
Voila! Sound was playing everywhere.