Netbook Battery Life 1 hour in 10.04

**chek2fire** · May 9th, 2010

Is not solved and the problem still exist. I have netbook 10.04 edition in a 1011 inpiron Dell and i have the same problem.
When i try to give this command

sudo echo 5 > /proc/sys/vm/laptop_mode

it says that permission denied

i try to edit manual the /proc/sys/vm/laptop_mode and change it from 0 to 5 when i try to save it say again permission denied.
I try to do that in terminal safe mode or to login as root user but i have the same message.
I try this command

echo 5 | sudo tee /proc/sys/vm/laptop_mode

that seems to work and change the /proc/sys/vm/laptop_mode from 0 to 5 but..
when i try to reboot the system and login again i have the same 0 result.
If this is a problem do we have to create a launchpad bug report because this is very serious for a netbook edition.