I wonder what steps should I take using the battery to make my
thinkpad R51 go to stand-by or suspend (by the way, what's the
difference between suspend & stand-by?) when I close the lid and what
should I do to resume the suspended session?
If you take a quick look through the archives, of the last 3 months, you
will find a thread which discusses this problem --> there is a patch for
For systems with Radeons, it is probably better to use radeontool from
ports. It reportedly reduces power consumption below the levels seen
with the DPMS patch and also allows you to power down the DAC for the
You do need to add it to rc.suspend and (most important) to rc.resume.
I just add:
if [ -x /usr/local/bin/radeontool ]; then
radeontool light off|on
radeontool dac off|on
depending on whether it's the suspend or the resume file.
If you are on better, you probably want to simply leave the DAC off,
though. You should be able to do this with devd, but I have not tried
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: ober...@es.net Phone: +1 510 486-8634