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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2answers
2k views

dual boot: Windows 8 session lost after Hibernate/Sleep

The problem I'm experiencing is losing the Windows 8 session after sleep/hibernate. When resuming the session I would expect to load directly into Windows, however the GRUB bootloader displays. At ...
2
votes
1answer
1k views

Why does CPU usage spikes to 90% and more after wake from suspend on Ubuntu 13.04?

On an Acer C7 Chromebook running ChrUbunutu (not CROUTON) I noticed a problem after moving to 13.04. If I put the system to sleep and then wake it up both CPU cores spike to 90%+ usage. Soon after ...
1
vote
2answers
377 views

Ubuntu not starting after suspend

I have an HP-compaq-15s-103tx laptop with duel booted Ubuntu 14.04 LTS and Windows 8.1 in UEFI Mode. Every time when I try to Start my laptop after doing 'suspend', It does not boot at all. i.e, ...
1
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4answers
3k views

Lenovo Yoga 2 Ubuntu 14.04 occasionanal blank screen

I have a new Lenovo Yoga 2 with Ubuntu 14.04. On every 3rd or 4th boot, the screen goes completely blank after the grub screen and the backlight seems to ramp up to maximum intensity (I see a faint ...
1
vote
3answers
794 views

Can't find Intel Wireless-N 1000 after waking from sleep

I've tried a lot of proposed solutions, most of them adding files to /etc/pm/config.d, as well as WiFi stops working after waking from suspend with a Broadcom 43225 and nothing has worked. hardware ...
0
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1answer
327 views

Kernel oops during resume after suspend/hybernate

After digging through Net, this seems like a recurring problem :). My laptop will not resume after suspend/hibernate. Under mother Microsoft there were no problems, but then I installed Scientific ...
0
votes
1answer
5k views

how to disable monitor sleep/blanking? [duplicate]

Ubuntu server system (no X installed) that runs several networking daemons. It's been headless for years but I recently attached a monitor to it and installed some cli monitoring utilities (glances ...
0
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2answers
1k views

Ubuntu 13.04 wake up hibernate suspend black display on Nokia Booklet 3G

Lubuntu 13.04 runs amazing on the Nokia Booklet 3G with a SSD, the only issue I got is the wake up/suspend/hibernate not working properly i.e. the display stays blank or black. Any idea how to fix it? ...
6
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3answers
586 views

Dell Studio 15, Turnoff after suspend due to overheat, and does not turnon the fan as well [closed]

I am new to Ubuntu and linux as well, the thing is... I got strange problem with my laptop, I am not sure is the problem with my hardware or the os I got: Dell Studio 15 (ATI Graphics Card) with ...
3
votes
2answers
4k views

Keyboard not working after suspend to ram (sleep)

On a Sony Vaio VGN CS21S the keyboard doesn´t work after suspend to ram. Suspend to disk (hibernate) works though. Running a fresh install of Natty with Unity.
2
votes
3answers
1k views

Wireless doesn't reconnect after resuming on after the upgrade to Ubuntu 14.04 on my MacBook Pro.

I have a MacBook Pro with it dual-booting with Ubuntu 14.04 and Mac OS X, and a few days ago I upgraded Ubuntu from 13.10 to 14.04. When I suspend and then resume the system, wireless tries to ...
2
votes
1answer
609 views

No wlan after standby

since I use Ubuntu 13.10, I'm experiencing a bug: I activate standby I press any key to continue working on my laptop The computer is on again, but the wlan doesn't work. → The wlan network ...
2
votes
1answer
1k views

How to get suspend mode working?

I have a Sony Vaio VPCF11C5E notebook and Ubuntu 12.04, but my suspend mode is not working. Every time when I try to start the suspension mode, the notebook goes into the suspension mode. When I try ...
2
votes
0answers
261 views

How to enable Hibernate in 12.04? [duplicate]

Possible Duplicate: How to modify policykit to allow hibernation in upower? I just installed the new 12.04 beta on my Lenovo Ideapad U450. According to this thread Whither hybrid suspend? ...
2
votes
4answers
10k views

Laptop does not wake up after sleep [closed]

Today afternoon i wanted to download websphere, so i started download and closed the lid and came back after 2 hrs and opened the lid.. I think laptop was running..but when i hit my enter button ...
1
vote
4answers
991 views

Infinite login loop with Nvidia proprietary graphics

I just recently bought myself a Dell Inspiron 7559 and, of course, installed Ubuntu on my second SSD. Had to start up the installation disk with nomodeset as it wouldn't get past the loading screen. ...
1
vote
2answers
187 views

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 ...
1
vote
1answer
507 views

12.04-Laptop freezes everytime I close my lid [closed]

My 12.04 Ubuntu laptop freezes every time I close my lid. I have recently installed Gnome 3.8 on my computer and removed it because I did not like it. It is probably caused because of that. And now, ...
1
vote
0answers
1k views

Ubuntu 12.04 HP dv7 cannot connect to wireless network after suspend [duplicate]

Possible Duplicate: Wireless doesn’t connect after suspend on an Asus K52F I'm running Ubuntu 12.04 on my HP dv7 laptop and every time I wake from suspend I am unable to connect to my ...
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 ...
-1
votes
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 ...
14
votes
4answers
22k 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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2answers
13k 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
votes
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 ...
10
votes
2answers
1k views

Automatically suspend if no one is logged in for 30 minutes

For a number of stationary machines here at the university, I would like to have a setup where the machines suspend themselves to save power 30 minutes after the last user logged out. How can that be ...
8
votes
4answers
5k 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 ...
21
votes
2answers
29k 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.
19
votes
2answers
1k 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 ...
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 ...
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 ...
5
votes
2answers
4k views

Wifi doesn't work after hibernate but DOES work after suspend

I run Ubuntu 13.10 (though on 13.04 situation was the same) on Thinkpad E125 laptop I have very common problem - there were no WiFi after suspend. I've googled the problem and find solution that ...
5
votes
2answers
994 views

How do I detect when my system wakes up from suspend via DBus or similar in a python app?

In a background Python script I need to detect, when the system just woke up from suspend. What is a good way that does not rely on a root script but rather on python modules such as DBus? I'm new to ...
5
votes
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 ...
11
votes
3answers
623 views

Ubuntu suspends when the lid is closed after pressing shutdown

I am running 12.10. Usually when I am in a hurry I press the shutdown button on the bar and close the lid of my laptop just after that. Often, I observe that instead of shutting down, the system ...
10
votes
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 : ...
9
votes
1answer
988 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
votes
2answers
6k 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 ...
9
votes
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 ...
5
votes
2answers
1k views

No sound after resuming from suspend?

When my system gets to suspension while the song being played, and got resumed from the suspension, I found my Rhythmbox player running but no sound coming even from the system. I had to suspend it ...
2
votes
3answers
1k 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 ...
1
vote
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
votes
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 ...
18
votes
3answers
967 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 ...
10
votes
6answers
10k views

Thinkpad does not wake from sleep - 14.04

On a freshly installed and updated Ubuntu 14.04 my ThinkPad E540 suspends successfully, but won't wake back up - a full reboot is necessary. Moreover, during the suspended state the fan is constantly ...
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
1k views

How do I inhibit suspend from the command line?

Is there a way to inhibit suspend/hibernate from the command line. I want to ssh into my home computer and not have it suspend while I'm working on it.
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
6k 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
1answer
596 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 ...