Questions related to Suspend Mode, which is a special low-power mode often used on laptops that preserves the contents of RAM while using less power than normal. Questions related to suspending to disk should use the [hibernate] tag.

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Suspend option is not working in Ubuntu 14.04

I'm new in the world of linux. I'm trying to learn it using Ubuntu 14.04 LTS version. My question is how to make the 'Suspend' option to work? Whenever i click that option from my laptop, the ...
0
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1answer
1k views

Timed Shutdown - shutdown after 30 minutes [duplicate]

I am running Xubuntu 13.04, I got in the habbit of closing my Acer Netbook and forgetting about it for a week+. I open it up to find it has still been running. How do I set it to shutdown after 15 ...
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2answers
1k views

Intel Centrino iwlwifi driver problem: wifi disconnects after suspend/hibernate, persistent problem since 14.04

This is a real shame and true frustration, I've long been Ubuntu advocate but now after hours and hours of wrestling with this bug I'm about to go back to the windows realm (or maybe another linux ...
31
votes
2answers
13k views

Network disabled on some wake-ups on saucy laptop [closed]

Since I upgraded to Saucy Salamander 13.10, with every third suspend or so, the network is disabled and I'm unable to re-enable it. I've had to reboot to make it run again. The network menu will have ...
15
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4answers
23k views

Suspend and wake PC at certain time

I want my PC to sleep at 04:58 and wake at 05:15, every day. How do I do that?
13
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3answers
9k views

no wifi after suspend on 15.04 [duplicate]

My wifi is not working after suspend on 15.04. I can click my way to success on the wifi icon in the menu bar (and the enable wifi option), but I want to use scripts to automate the procedure. Here ...
13
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2answers
14k views

how to resume download in wget which is integrated with firefox via flashgot

I use wget as a downloader. It is an excellent, outstanding application. I integrated it with Firefox using Flashgot. How can I resume a download which was stopped by a CTRL+C key press or a shutdown ...
8
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4answers
6k views

15.04, 15.10, 16.04 - Closing lid does not suspend laptop if connected to external monitor

Since the upgrade to 15.04 (update: 15.10 still same), my laptop's behavior on closing lid has changed: if it is connected to an external monitor, it will not suspend. In addition, all the windows are ...
8
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3answers
6k views

Ubuntu 13.10 suspend crashes KDE / black screen on wake

Setup I have a fresh install of Ubuntu 13.10, with KDE (installed via Ubuntu server disk and sudo apt-get install kubuntu-desktop). Problem Whenever I suspend the computer while in KDE (either via ...
24
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2answers
32k views

What is suspend?

I saw the option Suspend in Ubuntu. What does it do? I tried this option, but my PC goes to low power mode and then, I can't bring it to a normal condition. So I had to power off my PC.
14
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1answer
5k views

Is there an Inhibit Sleep indicator for Unity?

In the classic Gnome shell, you could add an Inhibit applet to prevent the computer going to sleep. This doesn't work with Unity. Is there an alternative and just easy way to prevent the computer ...
19
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2answers
2k views

What is the most “Ubuntu” way of preventing certain users from shutting down, suspending etc?

On a traditional Unix system, non-root users cannot do this. What is it that gives users this ability in modern desktop environments and how would I go about disabling this on a per-user or per-group ...
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4answers
23k views

Ubuntu 14.04 resume error after suspend

I recently updated my Ubuntu from 12.04 to 14.04 in my dual boot (windows 7) Toshiba Satellite Laptop. After the update, whenever the laptop suspends for sometime, it fails to resume. When I try to ...
14
votes
1answer
6k views

Wake laptop when lid is opened?

I have a SAMSUNG laptop, which by the experience in the last months, has been a great one. I am actually implementing some functionality to it, and since I noticed, I am able to wake up my laptop from ...
12
votes
3answers
2k views

Suspend to RAM and encrypted partitions

Normally I don't shutdown my notebook any more in favour of using suspend-to-RAM. The downside is that my encrypted home partition is completely accessible after resume without entering the passphrase....
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6answers
10k views

Laptop Screen Black After Suspend

I'm a new user to Linux and i am running into an issue with suspend on my laptop with the following configuration Model : HP Envy m6 (AMD A10-4600M APU with Radeon HD Graphics) Operating System : ...
7
votes
4answers
2k views

Suspend when critically low power 11.10

Is there a way to suspend when Ubuntu is at critically low power. The only option in Ubuntu 11.10 power setting is to shutdown or hibernate. I run my battery all the way down till it suspends then i ...
9
votes
1answer
1k views

Prevent machine from sleeping when SSH connections are on

I am trying to save power by switching desktops to suspend mode when they are inactive. But many desktops are also accessed via SSH by their owners. There is a wakeonlan solution deployed to enable ...
9
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1answer
1k views

How to get suspend when idle if no user logged in (lightdm)

I can't figure out how to get Ubuntu 11.10 to suspend when idle from a lightdm login screen. I've found methods to do this from gdm, but even those reference configuration files that aren't present in ...
9
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2answers
7k views

How do I get a wireless USB keyboard to to wake Ubuntu 13.10 from suspend?

My PC with Ubuntu 13.10 is set to suspend after 30 minutes of inactivity. Up until it suspends I can resume working at any time using my Logitech K400r wireless USB keyboard. The OS defect/problem ...
7
votes
3answers
1k views

Ubuntu 16.04 doesn't shut down after suspend or hibernate

Actually my question can appear identical to this one in this forum (and also this one elsewhere); indeed the question is the same, but I'm asking it anyway because I can give more informations and ...
6
votes
5answers
887 views

How do I get suspend working on an HP DV4T?

Suspend doesn't work on my laptop. When the laptop tries to suspend, the screen turns off briefly, some system-looking text appears for a bit, the screen turns off again, then the screen turns back ...
5
votes
1answer
2k views

Standby Problem, PC can not enter Standby mode

I have a problem with the Standby function: My Computer does not enter the Standby mode with Ubuntu 14.04LTS. If I remeber me right, it works with Ubuntu 13.10 but this Version was not long installed ...
5
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1answer
1k views

Laptop shuts down upon waking from suspend

The computer enters suspend either by closing lid, choosing suspend from the top-right drop down, or hitting the power button and pressing suspend. It doesn't matter. I then attempt to wake the ...
4
votes
1answer
802 views

Authentication required before suspend

Since the last update of Ubuntu 14.04, when I press the sleep button in my laptop, a pop-up window appears with "Authentication is required for suspending the system". Password is not requested when ...
3
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1answer
2k views

Ubuntu 16.04 is not providing working suspend or hibernate feature

I previously used 14.04 and i used to suspend when ever i am done and need to resume my task later . That shuts my machine down(except the LED indicator) which didn't consume power and no heating so i ...
2
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0answers
472 views

Dell e7440, sleep sometimes fails, kernel logs show ACPI errors

I have a new Dell Latitude E7440 with Ubuntu 14.04.2. Sometimes (but not always), after sleeping, I cannot resume, as after trying to resume one of the following happens: I can move the mouse but ...
2
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3answers
2k views

Black screen on laptop lid open after update to 15.04

I suspend my laptop by closing the lid, but when I open it my screen stays black, when I should be prompted to enter my xscreensaver password. The screen is "on" because I can switch TTY using Ctrl+...
1
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1answer
2k views

Monitor not turning off in 14.04

I have a freshly installed ubuntu 14.04. In settings "Brightness and locking" I had the following Settings: Turn monitor off after "10 Minutes" Locking: On Monitor locking after "5 ...
0
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2answers
4k views

Ubuntu 12.04 Installed, monitor turns off after Bios screen

After a little struggling, I managed to install Ubuntu 12.04 LTS I can hear the comp running while the screen is off, it turns off directly after the BIOS screen. I'm very much a newbie to this so ...
14
votes
3answers
1k views

How can I force sudo to always ask for a password after waking from suspend?

Say I execute a command with sudo, then if I use sudo within the next 15/5 minutes (not sure how long it remembers me for) it won't prompt me for a password. It will only prompt me again if I haven't ...
8
votes
1answer
2k views

Why does Chrome video performance substantially degrade after waking from suspend in 10.10?

Note: For some more details, some of which may not be true given what I've figured out, see this post. When I first boot my computer, video performance (both native H.264 HTML5 in YouTube and Vimeo, ...
7
votes
3answers
2k views

Hibernate and Suspend do not exist anymore, help

When I close the lid of my laptop and open it after some time I am greeted with a message "Failed to suspend". When I tried to manually suspend/hibernate, I saw these options are not available there ...
5
votes
6answers
7k views

How to disable sleep/screensaver Kubuntu 12.04 LTS and VLC?

I watch VLC for a while, then about 15 min. later, it sleeps. Where can i find the how to disable the screen-saver or how to disable sleep?
5
votes
3answers
2k views

Bad DMA/do_IRQ errors on suspend/resume, with occasional freezing

Every time I suspend or resume my laptop (Dell Latitude E6520, bought this year), I get 2 messages of the form displayed on the console just before shutting down/starting up: [ 407.107610] ehci_hcd ...
4
votes
3answers
395 views

Put ubuntu PC to standby after X minutes

We've been using sleepd with ubuntu 12.04 to put public desktops to suspend after 5-10 minutes of inactivity. We are planning to deploy 13.10 (later move to 14.04), and have found out that sleepd ...
4
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0answers
545 views

How to set bluetooth to remain disabled after suspend? [closed]

Bluetooth is enabled by default, and I don't want that since I rarely use it and it consumes battery. I know you can enter rfkill block bluetooth in /etc/rc.local, which works upon reboot. But ...
4
votes
1answer
2k views

How to change Graphics Driver in 16.04 from i915 to open source driver?

Noob Question, so please don't get annoyed! I upgraded from 15.04 to 16.04 LTS, and now my system reboots often for no reason, doesn't "suspend" etc.. I have a Lenovo with Intel Core i5, and AMD ...
4
votes
5answers
5k views

How do I suspend over ssh?

I guess this question is pretty much the same as How to configure dbus to allow ssh-user to suspend server?; except I wanted to formulate it better. Assume I have an Ubuntu server running nonstop, ...
3
votes
7answers
3k views

Lenovo Ideapad s10-3 doesn't resume from suspend

I have recently installed Natty on my Lenovo Ideapad s10-3 netbook. I have a problem: while I'm able to put my computer to suspension, it just won't wake up when I open the lid or press a key (any key)...
2
votes
1answer
830 views

Can't login after sleep (Ubuntu 14.04)

I've got Ubuntu 14.04 installed on my laptop (Lenovo Z570), and it is fully updated. The trouble is that when I wake it from a sleep long enough to require entering my password to login, it won't let ...
2
votes
1answer
2k views

Ubuntu 14.04 wake up immediately after suspend

My laptop is Toshiba M840. When I suspend, my laptop auto resumes immediately. I used acpitool to check what devices made my computer waking up. After I disable the XHC, my computer suspends properly. ...
2
votes
4answers
2k views

WiFi stops working after waking from suspend with a Broadcom 43225

wired connection works but I am forced to reboot if I want wifi to start working again. I have an acer one 721-3801 on 10.10. help? I have the broadcom 43225 driver if that helps... (I am very new ...
2
votes
2answers
313 views

The Suspend is Killing Me (14.0.3, 15.10, Elementary Freya) Acer Aspire E11

Briefly I can't get this machine to suspend. Details and troubleshooting steps follow: I bought a brand new Acer Aspire E11 (http://www.amazon.com/Acer-Aspire-ES1-111M-C40S-11-6-Inch-Diamond/dp/...
1
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1answer
7k views

How to get xfce4-power-manager to work in Lubuntu 14.04?

I've had nothing but issues with it. On install, everything went fine, but I couldn't modify the lid action, and the suspending was very buggy - sometimes it worked, sometimes not. Then I found out ...
1
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2answers
2k views

Wireless mouse temporarily freezes (sleeps) on battery power

I have been getting a very annoying problem since recently in Ubuntu 12.04, probably due to another update that did more bad than good... When I resume from sleep on battery power my Lenovo Thinkpad ...
1
vote
2answers
2k views

What is GRUB (2)'s role in the suspend/hibernate process?

I have, like many, problems with suspending/hibernating in Ubuntu. When I resume from suspend the fans start, the HDD led glows steadily, but the screen is off. The only thing I do is hard reboot. No ...
9
votes
3answers
6k views

How to suspend from command line such that screen is locked?

I'm using Xubuntu 12.04. In the Power Manager, I have checked Extended -> Lock screen when going for suspend/hibernate. If I choose to suspend from the main menu / Panel 1, the screen is locked. ...
7
votes
3answers
11k views

After returning from suspend the keyboard and mouse doesn't respond [closed]

I have 64-bit Ubuntu 14.04 on Dell Inspiron-3537. After resuming from suspend it takes me to log-in screen, and I'm unable to move cursor and no hotkeys are working nor "ctrl+alt+f1". I tried sudo pm-...
6
votes
1answer
325 views

CPU clock slower after each resume from sleep

I'm running kubuntu 15.10 on a Lenovo Y50-70, and I have a very annoying problem with the CPU clock: Whenever the computer resumes from sleep, the CPU clock has a lower maximum, and this does not ...