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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Xubuntu 15.04 goes into sleep after powering up

Upgrade from Xubuntu 14.10 to 15.05 (Update history : 13.10 -> 14.04 -> 14.10 -> 15.04). The upgrading worked well. After rebooting the machine (Dell Inspiron 6000 - 10 years old) went automatically ...
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1answer
32 views

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

Since the upgrade to 15.04, 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 now flushed to the ...
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9 views

Does sleep mode limit CPU performance?

I have looked around but couldn't find a definite answer to whether or not sleep/suspend mode affects CPU performance in Ubuntu/Debian. Is there any impact on performance while running in ...
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0answers
41 views

After upgrade to 15.04, wrong temperature readings cause fan to go crazy

Since I upgraded to 15.04, twice after I had started it from suspended state Ubuntu would right away start spinning the laptop fan like crazy since it thought that one of the temperatures was 100°C ...
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20 views

pm-hibernate freezes and/or fails to resume on Dell XPS 13, 14.04, 3.19 kernel

I'm running 14.04 on a new XPS 13. In order to support the newer hardware, I'm running a mainline 3.19 kernel. Hibernate resume has been iffy with the entire 3.19 kernel line, but recently (3.19.5) ...
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0answers
37 views

Ubuntu shutdown freezes after suspend

I've recently installed Ubuntu 15.04 on my Acer Aspire V3, along with pre-installed Win8.1. During installation, I enabled /home encryption. There is no problem with suspending laptop for the first ...
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1answer
53 views

Resuming from suspend temporarily 'fixes' sound on 14.04, how can I mimic the resume?

Sound stops working frequently on my Ubuntu 14.04 laptop. I have tried the myriad fixes to no avail. However, I noticed that when I close my laptop, let it suspend and open it up again the sound ...
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1answer
12 views

Yoga 3 Pro black screen on wakeup from sleep [duplicate]

When I wakeup my computer from sleep there is a blank black screen with just the cursor. Has anyone else experienced this problem? Description: Ubuntu 14.04.2 LTS Release: 14.04 Codename: ...
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6 views

USB ports stop working after resumming from suspension - Xubuntu 14.04

I have a Lenovo S20-30 laptop (bought in February 2015) and installed Ubuntu 14.04 (then Xubuntu) alongside windows. I don't use Windows now. Everything seems fine except when I suspend the laptop ...
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1answer
19 views

Notebook suspends only once

My ASUS U38DT performs suspend (after closing lid or choosin option) only once after reboot. Second time at the same session suspend doesn't happen. Wed Apr 1 00:21:45 MSK 2015: performing suspend ...
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2answers
39 views

Problem with “suspend”

A few months ago I bought a Dell PowerEdge T320 (Intel Xeon E5-2403) which came with Windows Server 2012. I removed that and installed Ubuntu. But in Ubuntu when I try to put the system to suspend, it ...
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85 views

Ubuntu 15.04 suspends ~30 seconds after resume

I just upgraded yesterday to 15.04 from 14.10 using sudo do-release-upgrade -d. My computer suspends and resumes with no trouble, however every time I resume, after about 30 seconds the computer goes ...
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0answers
44 views

System problem and should I uninstall Vivid kernel 4.0 from Trusty?

Last night, I suspended Ubuntu. This morning when I tried to wake it up by lifting my laptop top, it failed as the "sleep" led indicator changes from on to off and the "Power on" led indicator tilted ...
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1answer
27 views

Ubuntu Shutdown Timeout too short

I am using Ubuntu 14.04.2. I have Virtual Box 4.3.26 installed running a headless CentOS VM. I use the vboxautostart-service to start and save the virtual box at startup and shutdown as described ...
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1answer
21 views

sleep getting hang in shell script

I had a cron script running on my Ubuntu PC ( 12.04.3 ) which periodically checks for disk space. There was a "sleep 5" also used in this script. This system was up for a month, but an issue is ...
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0answers
13 views

ubuntu can not boot after suspend

If I suspended ubuntu, it can be waked up and works well. But I can't restart it, there would be a black screen with a cursor blinking. If I insert the live-usb and reboot with it, then try ubuntu, ...
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0answers
179 views

Black screen and no wifi after resume from suspend (laptop Lenovo, system Ubuntu 14.10)

Very ofter, but not everytime, I have a black screen and no wifi after resume from suspend. My version of Ubuntu is 14.10, and my laptop is Lenovo G50-30. I have read many similar questions and ...
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0answers
11 views

suspended HDD spins up before system suspend

I'm booting Ubuntu 14.10 from the SSD ("sdb") in my notebook. As a second drive I have an HDD ("sda") which is kept on standby via entry in /etc/hdparm.conf: /dev/sda { poweron_standby = on ...
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2answers
1k views

sh: echo: I/O error on pm-suspend Ubuntu 14.04

I just installed Ubuntu 14.04 on my Fujitsu Lifebook U772 after a long hiatus with Opensuse and after the install, it appears that pm-suspend works out of the box. A few days of setting up later, ...
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0answers
26 views

14.10 Black Screen on Resume [duplicate]

I recently installed 14.10 on my dell latitude e6510. The machine is running an i5-540m, NVS3100M, Vertex turbo SSD, 6GB RAM, and an intel wifi link 5100AGN wireless card. Every few resumes from ...
37
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2answers
34k views

Automatically sleep and wake-up at specific times

How can I hibernate or sleep my Ubuntu 10.10 desktop and have it "wake up" the next day? I have seen software that can do this on windows, so it can't be hard on Ubuntu!
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0answers
31 views

How to prevent an unintended resume from suspend (Lenovo x240)?

Updated 2015-04-19, 15:56 - I am using a Lenovo x240 notebook and the problem is valid for Ubuntu 14.04 and 14.10 at least. General description of the problem If I close the notebook's lid the ...
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1answer
179 views

How to prevent Ubuntu Server sleep/hibernation

I'm running the latest Ubuntu Server (quite literally downloaded & installed yesterday) on a box under my desk. I've got trac installed and OpenSSH. Intermittently both become unavailable, as if ...
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1answer
31 views

This session is locked - problem

When I try to login after resuming from a suspend, I get this message with a huge lock icon. This session is locked - you will be redirected to the unlock dialog automatically in a few seconds ...
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1answer
19 views

Like Mac. Close Tap (lid) and active hybrid-suspend 14.04

I would like to configure my OS, to Close the lid of the laptop, block the access and later of 10 or 20 minute active hybrid-suspend. someone can help?.. I know to close the lid and active the ...
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0answers
12 views

Wakes into comatose state from suspend

I am running 14.04 from a USB stick on an ASROCK MOBO. When I put the system into suspend, it successfully stays in suspend, but when I jostle the mouse or press keys on the keyboard, it fires up the ...
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1answer
331 views

Suspend on lid close, even with the option OFF

I've set up a friends laptop with Ubuntu 12.04LTS with the Cinnamon desktop, and I'm having a few issues with the power settings. As far as I can tell I've got every setting to "Do Nothing" when the ...
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1answer
30 views

Web video (YouTube, etc) doesn't play in Chrome after suspend

I'm running Ubuntu 14.10 and nvidia-346 driver After a suspend, all websites doesn't play video in Chrome. Firefox appears to still play video. The video still loads. If I "click forward in time" ...
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0answers
21 views

WiFi Drops Out after Suspend

I have a Fujitsu Siemens V5535 loaded with ubuntu 14.10. Of course, it's a netbook, and I'm pretty happy with how it's survived, despite all I've put it through. So overall, I'm pretty happy with it, ...
1
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1answer
18 views

Resume from suspend not working on Macbook Pro 5,5 with Nouveau

Resume from suspend used to work perfectly on my Macbook Pro 5,5. I was using the Nvidia graphics driver, which had really bad support for OpenGL, so I purged the Nvidia driver switched to the open ...
5
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3answers
183 views

How can I wake up my computer from suspend?

After the latest update, my machine isn't waking up from suspend, and I have to hard-reboot it. This only happens sometimes, and I can't tell under what exact circumstances it happens. I think it's ...
8
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1answer
120 views

How do I stop the screen from being locked on resume on Kubuntu/KDE?

Per How do I stop the screen from being locked on suspend? I want to be able to sleep and resume without the screen locking. All the previous answers seem to involve fairly Gnome-specific things that ...
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0answers
50 views

No Suspend option in Cinnamon after migration to Ubuntu Vivid 15.04 [closed]

Suspend was working perfectly until right before the migration to Ubuntu Vivid 15.04. I had the Suspend menu option, and the computer would suspend when the lid close. Right after migration, my ...
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2answers
11k 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 ...
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0answers
8 views

Ubuntu 14.04.1 LTS nic seems to to go to sleep or hibernate

We have this virtual computer but it seems to either go to sleep or hibernate when idle. We dont have any issues with our other VMs on this host but they are Windows. If someone is in it or working ...
0
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1answer
15 views

Unsuspend process that was not launched from terminal

I start emacs from my init script upon login. Every now and then I accidentally suspend it with ctrl+z, and I don't know how to recover from that. Had I started from the terminal, jobs and fg would ...
31
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3answers
28k views

Wireless networking not working after resume in Ubuntu 14.04

[Update]: The same problem exists in Kubuntu and is solved in the same manner. [Solved]: By applying the following command nmcli nm I got the following: Before suspend RUNNING STATE ...
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0answers
38 views

Ubuntu 14.04 problems with suspend and hibernate while using NVIDIA profile instide of intel profile

First I hope it isn't duplicated question... but I have been searching for a week but no solution for my problem. I have HP laptop with Hybrid graphics for Intel and Nvidia I enabled hibernate when ...
5
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1answer
924 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 ...
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0answers
23 views

Ubuntu sleeps when power cable is removed

I just installed Ubuntu 14.04 on a Macbook 5,2. It works fairly well except that when the power cable is unplugged the desktop logs out, prompting the password menu and in less than a second the ...
3
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3answers
4k views

Is there a way to suspend/sleep via bash?

I have to get nine 46" LCD monitors (running Windows) to suspend/sleep at 8pm and wake at 8am every morning. It's been a bit of a mess trying to get the commands working, including the privileges. ...
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0answers
19 views

CUDA not working after returning laptop from sleep

I have installed cuda 7 toolkit with newest driver, and it passed all the tests, it seems that driver is loaded, but every time when I just put my laptop to sleep, and wake it up from sleep, cuda ...
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0answers
33 views

Chrome GPU process crashes after resume from suspend

When i launch Chrome hardware acceleration works fine. Checking with chrome://gpu i get "Hardware accelerated" on all features (i have Override software rendering list flag enabled in chrome://flags). ...
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0answers
13 views

Gnome Blank Screen Power Setting Option

I am using Ubuntu Gnome 14.10 and I am having problems with the blank screen option. I expect Gnome to blank the screen and lock my computer when I close the lid. However, it somehow suspends the ...
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0answers
25 views

ubuntu hangs after installing nvidia driver

I installed ubuntu 14.1 few days ago and today changed Nvidia driver to this I noticed that after that ubuntu got slower, cooler got noisier and hotter also...But, main problem is that system hangs ...
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0answers
46 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 ...
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0answers
36 views

Wacom can't detected after suspend. After USB reconnection it works again but without ExpressKeys support

I'm use "Wacom Intuos Pro M" on Ubuntu GNOME vivid uname -a && lsb_release -a Linux MY-PC 3.19.0-10-generic #10-Ubuntu SMP Mon Mar 23 16:25:20 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux No LSB ...
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5answers
8k views

Network connection error after suspend Ubuntu 14.04 [duplicate]

I'm using ubuntu 14.04 and a DSL connection for internet. However, whenever I suspend and resume my session, I'm no longer able to connect to the internet. Could someone help me fix this?
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0answers
16 views

Desktop freezes when Suspend is clicked

When I open the Power Menu in the top right and click Suspend, the computer immediately freezes. I am left unable to use the mouse or keyboard, and the Suspend menu item stays selected but nothing ...
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0answers
17 views

LDAP network connection lost when lid is closed Ubuntu 14.04.2

I have a question about suspend process. I installed Ubuntu 14.04.2 and LDAP client on my laptop, when I logged in via my LDAP user and close laptop's lid and when I open lid of laptop my network ...