I am doing some experiments comparing the performance of wireless under 3 different cases:
(i) without media sensing (carrier sensing).
(ii) with media sensing but no RTS/CTS
(iii) with media sensing and RTS/CTS
I know RTS/CTS can be controlled by iwconfig interface rts {N|auto|fixed|off}
However, what about media sensing? Can it be disabled? If yes, how?
lshw -C network:
Code:
*-network
description: Wireless interface
[code]...
I've had a host of problems since upgrading to 11.04 Natty Narwhal, so let's deal with these 1 at a time.
I've got a Hewlett-Packard Pavilion G60 laptop. Next to the power button is a handy wireless on/off button. This has always worked well with previous editions (9.04,through 10.10). first press toggles the wireless off, second press toggles it on.
Not so in 11.04. The toggle off works great, first time. But, it will not toggle back on. Not after any number of tries, not after restarting, not after booting into other OS's (9.10 and Vista) re-enabling it there and then booting back into Narwhal. to further complicate the issue, this feature bypass the network manager, so toggling the wireless off by the switch leaves me showing no wireless adapter in the network manager. I also restarted, switched from Unity to a Gnome session, but the issue still persists.
As my only network options are wireless, this has become a substantial inconvenience.
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EDIT: so the network util is actually saying "wireless disabled by hardware switch". Also noticed it I enable it in 9.10, reboot to 11.04 (where I inevitably fail to re-enable it), then reboot into 9.10, it will initially be disabled. The key difference is in 9.10 I have the ability to enable wifi using the hardware button. It seems that 11.04 is remembering that wireless is disabled between boots. Is there a place it might be storing this value? If so, I may be able simply to set the value as enabled, since toggling that silly button isn't working.
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EDIT 2:
found this thread:"Wireless disabled by hardware switch" bug? - Natty
seems to be a similar issue. I'll be following how that one develops, too.
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Quote:
eth0 Link encap:Ethernet HWaddr 00:01:2e:2b:a7:b0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
[code]....
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View 2 Replies View RelatedUbuntu, but I like it, and I'm trying to see how powerful it is.I got a non function wireless network card. Here the information that I be able to collect:
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[code]...
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Here's some info:
[Code]...
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