I am using:
openSUSE 12.2 (x86_64)
on a Dell Latitude E6530
with a Broadcom Corporation BCM43228
As long as the power cord is connected, everything is fine. Once you unplug the power cord, the power management of the wifi card turns on and it is almost impossible to work on another machine in the same wlan via ssh.
The Bit Rate drops from 54 to 18 Mb/s. The latency feels like you are using a 56k modem.
So now the question is, how to turn the power management feature off, without disabling the network manager. There is a way doing it with yast or by editing the ifup files (requires to disable the nm). But as we are now using the network manager by default, there has to be a way doing that with the network manager, right?
Could please somebody help me?
On 02/27/2013 03:46 PM, d3acon wrote:
>
> Hi!
>
> I am using:
> openSUSE 12.2 (x86_64)
> on a Dell Latitude E6530
> with a Broadcom Corporation BCM43228
>
> As long as the power cord is connected, everything is fine. Once you
> unplug the power cord, the power management of the wifi card turns on
> and it is almost impossible to work on another machine in the same wlan
> via ssh.
> The Bit Rate drops from 54 to 18 Mb/s. The latency feels like you are
> using a 56k modem.
>
> So now the question is, how to turn the power management feature off,
> without disabling the network manager. There is a way doing it with yast
> or by editing the ifup files (requires to disable the nm). But as we are
> now using the network manager by default, there has to be a way doing
> that with the network manager, right?
> Could please somebody help me?
What driver on that BCM43228? If you have Broadcom wl as the driver, we cannot
help you. If you are using b43, does
sudo iw dev wlan0 set power_save off
If this helps, you will need to have it executed when the system is booted. You
will not be able to do it with YaST or ifup.
On Wed 27 Feb 2013 11:05:41 PM CST, Larry Finger wrote:
On 02/27/2013 03:46 PM, d3acon wrote:
>
> Hi!
>
> I am using:
> openSUSE 12.2 (x86_64)
> on a Dell Latitude E6530
> with a Broadcom Corporation BCM43228
>
> As long as the power cord is connected, everything is fine. Once you
> unplug the power cord, the power management of the wifi card turns on
> and it is almost impossible to work on another machine in the same
> wlan via ssh.
> The Bit Rate drops from 54 to 18 Mb/s. The latency feels like you are
> using a 56k modem.
>
> So now the question is, how to turn the power management feature off,
> without disabling the network manager. There is a way doing it with
> yast or by editing the ifup files (requires to disable the nm). But
> as we are now using the network manager by default, there has to be a
> way doing that with the network manager, right?
> Could please somebody help me?
What driver on that BCM43228? If you have Broadcom wl as the driver, we
cannot help you. If you are using b43, does
sudo iw dev wlan0 set power_save off
If this helps, you will need to have it executed when the system is
booted. You will not be able to do it with YaST or ifup.
Hi
On my E5510 there are BIOS settings for power management on
ethernet and wirless…I disabled it.
–
Cheers Malcolm °¿° (Linux Counter #276890)
openSUSE 12.2 (x86_64) Kernel 3.4.28-2.20-desktop
up 2 days 21:15, 4 users, load average: 0.01, 0.06, 0.06
CPU Intel® i5 CPU M520@2.40GHz | GPU Intel® Ironlake Mobile
On 03/03/2013 02:06 PM, deano ferrari wrote:
>
> d3acon;2531594 Wrote:
>> Doesn’t work for me. There is no option to switch off this feature in
>> BIOS.
> Did you try Larry’s advice?
