Hi all, My wireless have note security and type N. My Udoo is connected but i have big lag, and the TX excessives retries up continually. I am only to have this problem ? Florian. The system is ubuntu 11.10 of official image UDOO.
Re: Wireless work not correctly. im not exactly sure what you are describing as the problem.. you have no seciruty? as in you can not use WEP/WPA ? And type N? meaning you are not getting full 802.11 N connection speeds? I see you do say that you are connected its just a bad connection. Assuming you are relatively close to your wireless access point i would start with the normal questions are you using the image that came with your UDOO or did you update to the most recent v1.2 image? Is your power supply rated for 9v or 12v and providing 1A preferably 2A of current? This information can be found on power supply label
Re: Wireless work not correctly. The problem is a lag and ping (~ 900ms). The udoo is approximate 5m of access point. My power supply is 12V and 1.5A. I have download image of ubuntu on the website. but i don't update uboot. I don't use a security and the udoo is connect 802.11N .
Re: Wireless work not correctly. it is possible you are suffering from another known issue and that uboot update may be required please see the thread viewtopic.php?f=2&t=149 This easiest implementation of this fix is at the end of the thread on the third page, but here it is below This resolves a bug that is known to cause high load, details are in the thread, but this high load could be causing the latency on the pings. I know on mine i will get 50ms up to 300 ms just if a process kicks off, so i know this can be related. But if you run the top command and see the "load" in the top right showing 4.0 or something similar you need this patch. We have seen the implementation of this patch resolve various issues. For good practice you should also apply UDOOs patch they releases "Update Package" at the bottom of http://www.udoo.org/downloads/#tab4
Re: Wireless work not correctly. I have use update package... but no solve this problem. For your fix, my udoo is a dual and not quad, it's not important ? For information, my CPU load (idle) is : ubuntu@imx6-qsdl:~$ uptime 23:06:51 up 18 min, 1 user, load average: 2.08, 2.05, 1.49 and CPU: Cpu(s): 0.8%us, 0.7%sy, 0.0%ni, 98.5%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Re: Wireless work not correctly. If you arer using Linaro image v1.2 and applies both of those separate patches and are still experiencing 900ms+ delay in wifi base ping im not sure if i have more ideas Have you tried to connect with ethernet to see if its any different?
Re: Wireless work not correctly. Yes, in ethernet is work correctly. If use wifi, i can't use vnc in local because the lag is very important, the client don't show server. "and applies both of those separate patches". i'm sorry i don't understand. what patch do you think ?
Re: Wireless work not correctly. There are 2 different patches When you create your SD card using the Linaro v1.2 image here : http://www.udoo.org/downloads/#tab1 once you start it up you have 2 patchs that should be applied Patch 1 This is official and from UDOO here: http://www.udoo.org/downloads/#tab4 Its at the bottom called " Update Package" Patch 2 This is not official, but from the community, the one i cited above that is to address an issue causing high load This is from here: viewtopic.php?f=2&t=149 final details on the last page (and in the quoted section in my previous post) For the second patch i think you are saying that you may not need this because your load is not at 4.0+ but remember you have a dual core board so a load of 2.0+ is implying you may be suffering from the same thing and you should apply this patch as well. I am def not an expert in this area, and if you are not sure i would suggest posting in that thread to see if the fix is needed for you but it appears it may be You noted that you have If your not running anything, this is high and why i think you may need the patch (Patch 2)
Re: Wireless work not correctly. Thanks you. I post in thread high load for apply patch in dual udoo.
Re: Wireless work not correctly. I have patched my kernel ! 19:04:15 up 6 min, 1 user, load average: 1.04, 0.71, 0.34 Very well. And no lag in Wifi ! Thanks you. [SOLVED]
