Ubuntu 10.10 freezes when using wireless on battery

[choongii]

Try `touch /etc/pm/power.d/wireless`. This will prevent pm-powersave from putting your wlan0 card into powersaving mode when running on battery power. Solved the issue for me.

[psychydyl]

Try `touch /etc/pm/power.d/wireless`. This will prevent pm-powersave from putting your wlan0 card into powersaving mode when running on battery power. Solved the issue for me.

It worked for 30 mins, then back to freezing it went!

[PatchesTheCaveman]

Try

sudo iwconfig wlan0 power off

Replace wlan0 with your wireless interface if it's different. Run sudo iwconfig to check.

If that fixes your problem, make the change permanent by running:

sudo bash -c "echo iwconfig wlan0 power off >> /etc/rc.local"

Again, replace wlan0 with your wireless network interface if its different.

[spantch101]

this worked for me on asus k50id
"aspera wrote on 2010-11-26: #37

I'm sorry, but I was a little bit to fast. After I attached Linux Mint Julia to wlan and USB-Memory, it crashed after the Filetransfer began immediately also.

But I found finally a workaround, which I have tested the last 2 days:

I deinstalled the pm-utils 1.4 with synaptic. Download the package pm-utils 1.3.0-1ubuntu1_all_deb from

"http://packages.ubuntu.com/de/lucid/all/pm-utils/download"

and installed it.

Now it workes fine and all functions remain in the best way.

In my opinion the error lies in the current pm-utils package. But I am only a completely normal user and not a programmer!

Would anybody test it too and write a coment?

Thanks

aspera
"

[springnuts]

Try

sudo iwconfig wlan0 power off

Thanks Patches - that works for me as a one off, however after applying the

sudo bash -c "echo iwconfig wlan0 power off >> /etc/rc.local"

command the crash still happened when starting wireless. I checked the file "rc.local": it now had the text "iwconfig wlan0 power off" as its final element after the line "exit 0". Should this have been "sudo iwconfig ..." ?

Have restored rc.local and will use the one off solution until new pm utils comes out I think.

Problem happened on an Advent 7211.

Springnuts

[PatchesTheCaveman]

You need to put that line before the exit 0 line. Sorry, I forgot they had that in there.

sudo is not necessary because startup scripts are executed with root privileges.

[Morgoth1299]

I have a similar issue with my Ubuntu 10.10 running on MacBook. I have no issues what so ever running 10.04 with the older version of the kernel(now i have 2.6.35-23).

Issue details:
The system freezes and goes to a blank screen when i remove the power and the laptop turns to Battery power. All i can do is do a force restart. I could find no information about the crash in the log files and have no clue on how to fix the issue.


Jax

I have almost the same problem! As well as some others w/Ubuntu 10.10. I would be happy to switch back to an older kernal if I could, I have seen that that fixed a lot of peoples problems, eg unable to reume after sleep and freezing up. Could someone help?

[Morgoth1299]

i have a problem as well. only when i unplug my cord the screen freezes and the caps lock light on the keyboard blinks. i have a toshiba satalite l505d-s5983

Exact same thing happens to me!!! Toshiba T115D-S1125 4G RAM

Help anyone?

[zeating]

this worked for me on asus k50id
"aspera wrote on 2010-11-26: #37

I'm sorry, but I was a little bit to fast. After I attached Linux Mint Julia to wlan and USB-Memory, it crashed after the Filetransfer began immediately also.

But I found finally a workaround, which I have tested the last 2 days:

I deinstalled the pm-utils 1.4 with synaptic. Download the package pm-utils 1.3.0-1ubuntu1_all_deb from

"http://packages.ubuntu.com/de/lucid/all/pm-utils/download"

and installed it.

Now it workes fine and all functions remain in the best way.

In my opinion the error lies in the current pm-utils package. But I am only a completely normal user and not a programmer!

Would anybody test it too and write a coment?

Thanks

aspera
"

worked for me, same model K50ID thanks!!!

[bongey]

There is an on going bug report for this problem https://bugs.launchpad.net/ubuntu/+s...ux/+bug/656745 , seems one kernel module is acting up.