Questions about suspending your computer and related power-management questions.

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Preventing unused spare hdd from spinning up during suspend and shutdown

I recently replaced my sata hdd with an ssd, and keeping the hdd in as a spare. It's not used, not event mounted to filesystem. Yet, when suspending or shutting down the system, it quickly spins up, ...
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1answer
106 views

What could account for losing control of keyboard and mouse after a suspend?

Update: Just now, it happened again. After waking the computer from suspension, it was sluggish. I pressed Ctrl-Alt-Delete, but this time, it froze everything right away, the mouse and keyboard had ...
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1answer
19 views

How do I run commands on suspend/return from suspend?

I suspend my laptop (pm-suspend) often and sometimes my desktop (pm-suspend-hybrid) fairly often. I am using the latest ubuntu (13.10, saucy). Is there a way I could run a command when I go into ...
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2answers
543 views

Is it safe to remove USB media when a computer is suspended?

We are often cautioned against unplugging USB drives in case it is currently being read from or written to. When a computer is suspended, hibernated, or asleep is it obviously not writing any data; it ...
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224 views

Suspend on Mint 16 freezes on black screen

I have just installed Min 16 Cinamon (64-bit) on my Dell Vostro 3700. Most hardware works ok, but I have a problem with suspending machine. /var/log/pm-suspend.log shows, that all the pre-suspend ...
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44 views

Suspend and hibernation don't work

I have Ubuntu 13.10 and Windows 7 (dual boot with Grub). On Windows When I suspend or hibernate, in both cases the screen goes black about a minute before the fans stop. When I try to resume ...
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34 views

Can't come back from suspend

I have installed fedora 20 on my new Acer laptop and there is one thing left to fix. It does not come back from suspend. The computer seems to come back but the screen is blank. It has an AMD ...
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2answers
78 views

Is it safe to replace hardware while a PC is suspended to RAM?

Is it safe to replace hardware while a PC is suspended to RAM? Specifically: Can you unplug an external hard disk without losing data? Can you replace components like a drive or a PCI-express card? ...
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1answer
80 views

Systemd - Suspend to disk (hibernate) with suspended filesystems/block devices

Situation: 1) I am using systemd to suspend to disk using: systemctl hibernate 2) I have mounted a filesystem on an encrypted block device, that I suspend using dmsetup suspend device in order to ...
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72 views

RAM capacity vs power consumption in S3 Suspend-to-RAM mode

My netbook with 1GB DDR2 RAM module takes 16% of battery for 24 hours of S3 standby mode (STR - Suspend-to-RAM). That amounts to the power consumption of 0.32 Watts in standby. That also means that ...
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31 views

Ubuntu: Do not show display state when resuming from hibernation

I'm using Ubuntu 13.10 saucy on my laptop. The device is set up to suspend when the lid is closed, prompting for the password when resuming. However, when I resume, the last state of the display ...
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1answer
98 views

Wake on LAN through PHY and unicast only works in the first ~30 seconds after pm-suspend

I'm having some trouble with Wake on LAN through PHY and unicast. I'm able to wake the system by pinging or sshing the shut down machine, but only within the first ~30 seconds. Why's that, what could ...
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2answers
249 views

Is it possible to wake up an ACPI S3 suspended Linux System with an SMB packet?

I want to put my Debian NAS system in supend to RAM mode (ACPI S3) after a decent period of time idling in order to save some power. I thought about putting the NIC in a mode, where it waits for ...
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1answer
92 views

Location of Suspend after Idle Setting In Linux Mint

I was playing with my Linux Mint settings and made it so the computer would suspend after it was idle for an hour. It turns out suspending is broken. Anyone know where was that setting located at? ...
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1answer
401 views

How to make suspend to RAM secure on Ubuntu with full disk encryption (LVM on top of LUKS)?

I'm on Ubuntu 13.04 using full disk encryption (LVM on top of LUKS). I would like to incorporate luksSuspend into the suspend procedure (and later use luksResume) so that I can suspend to RAM without ...
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1answer
330 views

Execute a script whenever Linux Mint resumes from suspend

I'm running Linux Mint. I have a script the gets run whenever I login that remaps my mouse buttons. However, when the computer suspends, the mouse buttons revert to their default mapping. I'd like ...
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116 views

rtcwake not working without ac pluged in

(arch, thinkpad x200) just tried to set up a script to switch from "suspend to ram" to "suspend to disk" after 24 hours. I am using rtcwake for this. weird problem: rtcwake is not working. If I try ...
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170 views

How to enable auto suspend to RAM on ReadyNAS 104?

I've recently bought a ReadyNAS 104 and I want to save energy by suspending it to RAM. This should be done automatically after a user defined idle time. How do I configure the NAS do behave in this ...
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1answer
313 views

How to force Ubuntu/Debian/Mint to unload modules at suspend-to-disk?

I put a DVB-T card into the computer, and now the system hangs at suspend to disk. CTRL-ALT-DEL does not work, hard reset is necessary. I have a faint memory of the trick being to remove the modules ...
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0answers
18 views

Why laptop resumes when other device is powered on?

I've got 2 laptops (quite new) on different power supplies. Both works strange. The First one is resumed when power strip (laptop is plugged in the power strip) is switched on. The second one is ...
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1answer
303 views

Any way to run a user script on suspend/resume in KDE4?

I have the desire to run a script as the logged in user immediately before a hibernate (suspend to disk) operation, and immediately after a resume with KDE4. I know that I can put a script in ...
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1answer
158 views

Windows 8 Bluescreen when initiating suspend

I had the same problem in windows server 2012 but decided to try and rebuild it with a windows 8. System info: https://www.dropbox.com/s/zf1je91cn2cbc89/DxDiag.txt Doesn't happen when using ...
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1answer
384 views

Power management in Solaris 11 using poweradm?

In Oracle Solaris 11.1, pmconfig had completely vanished, and poweradm is available instead. While pmconfig was still available, I used to... Auto suspend : Let my server suspend from 2 AM through 7 ...
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2answers
418 views

Why can I only suspend using Ctrl-Z in screen under Cygwin?

I'm using Cygwin with ConEmu in Windows 7. I can't suspend programs in bash using Ctrl-Z unless I'm using screen. I've seen suggestions to use mintty, and that works, but I'm not sure why it makes a ...
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2answers
598 views

keeping remote X11 applications during remote client (i.e. Xserver) computer sleeps/hibernate/suspend

i'm using using slow but portable computers (asus eeepc, vivobook, etc) and do all my development on a remote server. most of the time i just ssh to the server, start a screen session, if anything ...
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1answer
295 views

How to force a Dell Latitude D830 to remain “on” after closing the lid?

I'm repurposing and old Dell Latitude D830 laptop for a Nagios monitoring server at work. Works great until I close the lid. Is there a way I can force this laptop not to suspend when I close the ...
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1answer
82 views

Saving the entire state (hibernate) of Ubuntu into a file and select it for restore?

I wanted to know if it's possible to simulate the hibernate process of Ubuntu to save the entire state session into a file. Then to select which one to restore ?
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0answers
472 views

WRT54G router with tomato firmware doesn't connect to internet if Windows 8 PC is suspended

This problem began occurring within the past couple of days, and to my knowledge I made no changes to any hardware or to my network layout. I have a Windows 8 PC connected to a gigabit switch (D-Link ...
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0answers
104 views

My laptop behaves strange after suspend

When waking my laptop from suspend, it behaves very strange - the CPU quickly gets hot and the battery drains insanely fast. Looking into powertop, there is a process called 'rtc_timer_do_work' that ...
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1answer
318 views

Keeping a USB drive mounted in sleep mode

How can I make my computer sleep but not automatically change the state of the USB flash drive I am using? I have it mounted on / because my hard drive broke, and whenever my computer wakes up it ...
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4answers
342 views

How to suspend the Linux system for a specific period of time remotely?

I'd like to suspend or hibernate my RedHat 5 Linux system for a specific period of time. For example I'd like to suspend the system at 12:00 and wake it up at 15:00 remotely. Is there any way to do ...
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1answer
251 views

Is Always on or Suspend/Standby better for HDD?

From a HDD protection stand point, is it better to leave my desktop always on for the whole day, or is it better to let it Suspend/Standby after a given period of time (say 30 minute)?
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292 views

How to find out why Fedora will not resume

I have a Fedora 17 desktop system running the latest 64-bit kernel which will not go to sleep properly. I know this because the fan continues to run after the screen has blanked - further the system ...
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1answer
711 views

cron job when Ubuntu is suspended

I am using Ubuntu precise. Is there a way to have scheduled cron jobs run even when Ubuntu is suspended? Perhaps some way to automatically wake up the system so a scheduled cron job can proceed and ...
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1answer
498 views

How to save your Linux state (suspend to disk) periodically to recover from crashes?

One in a while my laptop crashes/dies because of a bad/empty battery, crappy wifi driver or whatever other reason. For a while I've wondered if it's possible to force Linux to periodically save the ...
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1answer
409 views

Saving a Linux session on logout like on suspend

I'm using Debian on a PC in University and want to save my session when I log out. But saving the session should include the window position and their current content just what gets restored after ...
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0answers
65 views

Monitor goes blank after 30 minutes. No keyboard or mouse are attatched, but computer is controlled over SSH

Currently trying to set up a media server which I can control with my laptop or phone. After looking at all the options I decided upon using SSH to start mplayer in fullscreen. Everything is working ...
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1answer
2k views

Is there a command line way to disable suspend in ubuntu 12.04

Is there a command line way to disable suspend in ubuntu 12.04? I can only ssh to my 12.04, is there a way to disable suspend mode via command line? Thank you.
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2answers
497 views

How do I suspend Linux Mint?

I have Linux Mint 13 running in VirtualBox. How do I suspend it? I just can't find the suspend button anywhere in the menus.
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1answer
693 views

How can I remotely test if a machine is hibernated/asleep?

I'd like to be able to test if a remote Windows machine is asleep or not. Whether this is suspend or hibernate doesn't matter. I was originally trying to do this with a ping, but I would think that ...
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1answer
919 views

Security considerations with TrueCrypt and Intel Rapid Start

I'd like to encrypt my Windows system partition with TrueCrypt on my new notebook. It's using an SSD and supports Intel Rapid Start technology. As far as I've understood it, the computer only goes ...
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1answer
2k views

ubuntu suspend works, but then immediately starts

Having a strange problem after upgrading from Ubuntu 11.04 to 12.04. Previously I could suspend just fine, the computer will switch itself off. Pressing the ON button will switch it on and it will ...
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1answer
2k views

Automatically lock screen of Chromebook when lid is closed

Can a Chromebook be configured to automatically lock the screen when I close the lid? There is a discussion in If someone steals my chromebook while it's off, will him be able to see my cached data? ...
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1answer
458 views

How do I pause and restart VirtualBox virtual machines on ACPI suspend?

I use VirtualBox to set up Web developer environments on my laptop. If I suspend the computer and then restart, I'll get very long startup times while VirtualBox spins back up. I have much less of a ...
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1answer
185 views

Brightness doesn't change. But, sleeping the computer and coming back, works

I can't change my brightness on my laptop and I would like a help to solve this problem. Using kcmshell4 kgamma I can change the constrast. But using xbacklight nothing happens. If I put ...
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1answer
2k views

Is my computer in ACPI S3 mode?

I recently got a new motherboard for my Intel Core 2 Quad 9300-based PC (the old motherboard was fried). The old motherboard was an ASUS IP35 Pro, while the new one is a Gigabyte G41MT-S2. Since the ...
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2answers
1k views

How to make GNOME 3 use suspend-hybrid?

How can I make GNOME 3 use pm-suspend-hybrid instead of pm-suspend when closing the lid or using suspend from the menu?
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1answer
390 views

What happens when computer goes into Sleep (Suspend ) mode when the RAM is full

When the computer goes to sleep or suspend mode, the state of the OS and all the processes are stored in your PC's Random Access Memory (RAM) What if the RAM (physical or virtual or both) are maxed ...
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2answers
2k views

Why my USB mouse gets suspended after 3 seconds of inactivity?

Mouse's bottom LED goes off after 3 seconds after connection and cursor movements and wheel stops. Pressing any button, reconnecting or resetting USB device resumes it for another 3 seconds (when ...
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1answer
493 views

Suspend only works once after full power cycle with Asus P8Z68-V PRO GEN3

This one is strange. I can't seem to get suspend working more than once per power cycle. When I say "power cycle," I mean the only way to get one proper suspend is to cut power from the power supply ...