Ubuntu
acpi-support package

  1. Bug #59695
  2. Comment #69

Comment 69 for bug 59695

Revision history for this message
lmierzej (lmierzej) wrote : Re: default value in power.sh potentially kills laptop disks

I have investigated this issue on two different laptops... both with fresh installation of Gutsy.
On both laptops Load_Cycle_Count gets increased by 1 about every minute, which is very bad...

Invoking 'sudo hdparm -B 255 /dev/sda" solves problem on first laptop. Load_Cycle_Count not increasing for 10 minutes!
Invoking 'sudo hdparm -B 254 /dev/sda" solves problem on second laptop. Load_Cycle_Count not increasing for 10 minutes!

For me this bug is not connected with laptop_mode...
I don't know where in Ubuntu are default hdparm settings...
but even if they are correct they do not work or are not applied...

I would be more then happy to make more tests or supply additional informations...

I think that everyone who can should check his Load_Cycle_Count by invoking 'smartctl -d ata -a /dev/sda | grep Load_Cycle_Count' several times for 5-10 minutes, then 'sudo hdparm -B 255 /dev/sda' and one more 'smartctl -d ata -a /dev/sda | grep Load_Cycle_Count' several times for 5-10 minutes.

Hope this helps...

Can someone change importance of this bug to sane level. 'whislist' is really ridiculous...