08-18-2018
It would be helpful if you could post some data. Anything logged to screen after you press the power button? Any sequence of beeps? Is the POST (power on self test) executed correctly? Is the operating system boot sequence started? Is the system operating for a few seconds? Can you enter the BIOS to test for e.g. thermal problems?
With your vague description above, the only thing I could advise is go see the local wizard, buy some magic potion and pour it slowly but constanly into the power supply of your PC, murmuring some holy curses.
9 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
I am running Solaris 9 and wanted the CDE stopped when my users login. Can this be done by adding something to the .profile? Basically when they login they should be at the command line and have to start the CDE themselves.
Thanks (11 Replies)
Discussion started by: meyersp
11 Replies
2. Shell Programming and Scripting
How can i convert this case statement that i made to an if statement? Do not write script, just give a hint on how to do something below.
#!/bin/sh
hi="$1"
case "$hi"
in
) exit 0;;
* ) exit 1;;
esac
echo "$hi"
Here is what i got so far for... (2 Replies)
Discussion started by: brentdeback
2 Replies
3. Gentoo
Hi all,
I'm trying to write a script that will turn off the network interface eth0 on a linux Gentoo machine and then turn it back on, any help?
Thanks,
Neked (1 Reply)
Discussion started by: neked
1 Replies
4. UNIX for Dummies Questions & Answers
Hi,
Is there any way like in dos to turn the echo off in a script? i have some lines popping up that i dont wish to be viewed when i am unziping a file it brings up the message updating: log.txt (deflated 72%) and extracting: log.txt i dont want these be viewed.
Andy (4 Replies)
Discussion started by: chapmana
4 Replies
5. Solaris
For two straight days someone was running in.ftpd in my server (apparently looking to break in) and when I would do "top" almost every line would read "in.ftpd". I had a unix sysadmin friend of mine shut it down and then start it back up in a day and a half and all seems OK for now.
Here's what I... (1 Reply)
Discussion started by: thomi39
1 Replies
6. SCO
OSR 5.0.7 patched with MP 5
The syslog is flooded with messages:
May 9 13:42:12 asiwc bootpd: IP address not found: 192.168.230.215
May 9 13:42:13 asiwc bootpd: IP address not found: 192.168.230.142
May 9 13:42:50 asiwc bootpd: IP address not found: 192.168.230.202
The system... (4 Replies)
Discussion started by: migurus
4 Replies
7. Shell Programming and Scripting
i can probably script this in bash, but, i was wondering, does anyone know of a simple way to translate a given time to epoch?
date -d@"29/Oct/2013:17:53:11"
the user would specify the date: 29/Oct/2013:17:53:11
and the script will simply interpret that to epoch: 1348838383 (this is just... (4 Replies)
Discussion started by: SkySmart
4 Replies
8. Hardware
I wasn't sure where to post this. Please move this as is fitting.
My 10yr old laptop's (Dell, Latitude E5530, 4G ram, 2.5Ghz x 2 CPU) spin drive has died (currently running TinyCore Linux on USB in ram).
I would be running Linux, compiling the kernel, and programming in C++. I do not do... (0 Replies)
Discussion started by: bedtime
0 Replies
9. Red Hat
Hi All,
I've been looking at various options at administering several servers remotely like:
- VNC (don't like the lax security of 8 characters max for a password) and
- NX (awesome piece of kit but still limited to a per desktop viewer)...
What I'm looking for is a GUI that... (7 Replies)
Discussion started by: ASGR
7 Replies
LEARN ABOUT OPENDARWIN
pmset
PMSET(1) BSD General Commands Manual PMSET(1)
NAME
pmset -- modify power management settings
SYNOPSIS
pmset [-a | -b | -c] [dim minutes] [spindown minutes] [sleep minutes] [womp 1/0] [ring 1/0] [autorestart 1/0] [dps 1/0] [reduce 1/0]
[powerbutton 1/0] [lidwake 1/0] [acwake 1/0] [boot]
pmset -g [disk | live | cap | sched]
DESCRIPTION
pmset changes and reads power management settings such as idle sleep timing, wake on administrative access, automatic restart on power loss,
etc.
SETTING
The -a, -b, -c flags determine whether the settings apply to battery (-b), charger (wall power) (-c), or all (-a).
Use a minutes argument of 0 to set the idle time to never.
pmset must be run as root.
The boot argument tells power management that system bootup is complete. Loginwindow handles this on a normal Mac OS X system.
GETTING
The -g flag outputs the settings currently in use (same as -g live ). -g disk will tell you the settings on disk. -g cap will tell you
which power management features the machine supports. -g sched will show scheduled startup/wake and shutdown/sleep events.
ARGUMENTS
dim - display dim timer (value in minutes)
spindown - disk spindown timer (value in minutes)
sleep - system sleep timer (value in minutes)
womp - wake on ethernet magic packet (value = 0/1)
ring - wake on modem ring (value = 0/1)
autorestart - automatic restart on power loss (value = 0/1)
dps - dynamically change processor speed based on load (value = 0/1)
reduce - reduce processor speed (value = 0/1)
powerbutton - sleep the machine when power button is pressed (value = 0/1)
lidwake - wake the machine when the laptop lid(or clamshell) is opened (value = 0/1)
acwake - wake the machine when power source (AC/battery) is changed (value = 0/1)
OTHER ARGUMENTS
These arguments don't directly affect power management settings:
boot - tell the kernel that system boot is complete
EXAMPLES
pmset -b dim 5
pmset -a dim 10 spindown 10 sleep 30 womp 1
pmset -g live
FILES
All changes made through pmset are saved in a persistent preferences file (per-system, not per-user) at
/Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist
pmset modifies the same file that System Preferences Energy Saver modifies.
Darwin August 19, 2002 Darwin