Re: Hibernation
Ralph,
Have you tried the 'hdparm -m16 -c1 -u1 /dev/hda' trick? I don't know what
it does but it
works for me on my Mitsubsi Amity. Several knowledgeable people commented
about
it on this list some time ago but I don't know what those parameters do nor
which actually
make suspend work. I did try the command on a desktop machine and started
getting
hardware problems with the drive so be very cautious.
Matt
--
"R. Poss" <raph@burp.hostns> on 11/09/99 03:59:36 PM
Please respond to Raph <grey.havens@earthling.net>
To: David Goodyear <o227g@unb.ca>
cc: debian-laptop@lists.debian.org
Subject: Re: Hibernation
Hello,
I have been trying to get hibernation mode working on several
different laptops of different brands (IBM, Toshiba), and unfortunately
there is (apparently) no way to have it work under linux. I expect some
messy APM BIOS hook into m$-win, for which I have (yet) not found any
documentation/specification. Moreover, I have been asking some IBM people
who told be that the hibernation file must be located on a DOS partition,
and that it cannot be recognized (I am not sure of it, the explanation
was very inaccurate) when not running DOS.
Although this last fact is quite IBM-specific (for Toshiba's I
have only seen dedicated partitions on the disk for the hibernation
space), I suspect that the APM BIOS is quite stuck when the Linux kernel
is loaded and running.
For short, the built-in "hibernation mode" in our laptops is, in many
cases, quite unuseable with Linux. (Any success with other models/brands
would be appreciated, I'd really like to know if there are any)
However, Tobias Bachmor <bachmor@cs.concordia.ca> reported the
existence of a "hibernation feature" for the kernel. I am using this
feature daily, and it works quite well. Explanations on it follow.
For any people that actually rely on the use of an "hibernation mode",
this kernel feature does a good job and can, in most cases, replace nearly
completely the built-in feature of the laptop. See also below for the
present bugs and caveats.
Raph
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