Wifi connection level lower on Ubuntu than on Windows

[Vincent Arnoux]

Hello,
I have an issue with my installed 8.10 (it was also the case in 8.04): at
work where I have a pretty low reception level for the Wifi connection, I
can connect reasonably easily when booted on Windows (even if it disconnects
sometimes). But when boted on Ubuntu, the wifi network is often not seen at
all, and even if it can find it, I won't be able to connect (failing at "get
an IP address" step). There is no problem with the configuration itself as
when I move to another room where the signal I stronger, I can connect from
Ubuntu.

I am using a Panasonic CF-W5 that has an Intel Pro/Wireless 3945ABG wifi
chipset. I am thinking two things:
1) For some reason, the wifi board is not powerful enough due to a "laptop
configuration battery saving" mode on Ubuntu
2) The driver I use (standard one) with Ubuntu is not good enough and I
should install Windows one on Ubuntu.

Can anyone help?

Thanks,
Vincent
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