Ubuntu
linux package

  1. Bug #659705
  2. Comment #10

Comment 10 for bug 659705

Revision history for this message
jason.sidabras (jason-sidabras) wrote : Re: hard lock (hang) after a few minutes with APIC enabled

I have traced this down to only occurring while in battery mode on my Samsung X360. It occurs seemingly random, but it is accompanied by a hard drive spindown. I have had this issue since 9.04.

Currently the only workaround that reduces the probability of a hard lockup is setting:

hdparm -S 0 /dev/sda

I have tried to simulate this by messing with -Y and such in hdparm, but I can't seem to hard lock it manually. The seemingly random lockup may be associated closely about the time I would get a 40% (the first "warning") battery life.

Hope this helps.