Ubuntu 12.04 intermittently fails to wake up from sleep

Posted by stacksia on Ask Ubuntu See other posts from Ask Ubuntu or by stacksia
Published on 2012-09-16T21:32:55Z Indexed on 2012/09/16 21:52 UTC
Read the original article Hit count: 197

Filed under:

12.04

|

wakeup

When I put my Ubuntu 12.04 machine into sleep, sometimes on waking up, it fails, logs me out, and takes me back to login screen. When I log back in, it tells me some unexpected error happened, but it fails to let me report the bug. This has started to happen recently, but I don't know what triggered it.

uname -a Linux [name] 3.2.0-30-generic #48-Ubuntu SMP Fri Aug 24 16:52:48 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

The issue seems similar to Xorg intermittently restarts after suspend. But in my case I am not sure if it is a Xorg issue. I looked at xorg logs, but didn't notice anything indicating an error.

I know I am not providing a lot of info, but I am not sure where (e.g. which log files) I should seek for more info.

© Ask Ubuntu or respective owner

Related posts about 12.04

Wipe 12.04/Windows 7 dual boot setup and start fresh new 12.04

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have an Asus u56e laptop running dual boot setup, Windows 7 and 12.04. I had Windows 7 first. I was wondering what's the easiest way possible to erase/format my drive (500GB) so that it deletes Ubuntu and Windows 7 so I can reinstall 12.04 onto my whole drive? Does the Ubuntu Live CD help make this… >>> More
In 12.04: Failed to load session 'ubuntu' [closed]

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Possible Duplicate: There's an issue with an Alpha/Beta Release of Ubuntu, what should I do? I'm using 12.04 beta. Today I was prompted to install some updates, which I did, followed by a reboot. On reboot, X starts, but all I see is a single dialog window in the middle of the screen… >>> More
Will final version of 12.04 use the power management changes found in kernel 3.3

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have seen in some version of Ubuntu that instead of making a huge change to update to the latest kernel, they take some of the good stuff out of it, for the sake of stability and put it on a previous version. In this case, kernel 3.3 has seen some very good power management enhancements that are… >>> More
Wired PS/2 Keyboard and Mouse do not work in 12.04 Live CD or after fresh 12.04 install - Foxconn D270S Atom Motherboard

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
My Wired PS/2 keyboard and mouse do not work in 12.04, either in a fresh install or from the Live CD. A USB keyboard and mouse will work. The PS/2 keyboard and mouse will work using the same hardware and a fresh 10.04 Ubuntu install or a fresh Windows 7 install. The motherboard is a Foxconn D270S… >>> More
Difference between 12.04 and 12.04.1

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I recently did a fresh install of Ubuntu 12.04 two days ago. Or at least I thought it was 12.04, but actually 12.04.1. Now I'm having errors popping up from the grub loader. Error: no video mode activated which was apparently resolved in this bug# 699802. However these workarounds are for 11.xx… >>> More

Related posts about wakeup

How do I make changes to /proc/acpi/wakeup permanent?

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I had a problem with my Ubuntu 12.04 waking up immediately after going into suspend. I solved the problem by changing the settings in /proc/acpi/wakeup, as suggested in this question: How do I prevent immediate wake up from suspend?. After changing the settings, the system goes flawlessly into suspend… >>> More
HDD vanished after wakeup from standby

as seen on Super User - Search for 'Super User'
In my computer I got two hard drives: One 80GB Intel X25 Postville SSD for the system and a 1,5TB Sata HDD for data. When I put the system into standby, and wake it up again, roundabout 50% of the time the 1,5TB HDD is not found. It just vanished from the system (wreaking havok to all programs running… >>> More
Disable MOUSE wakeup when doing suspend on UBUNTU

as seen on Super User - Search for 'Super User'
When I do SUSPEND on ubuntu, in order to wake up, i can just move the mouse and the computer will wake up. But, I dont want that the computer is waked up when I move my mouse. How can I do that? My /proc/acpi/wakeup file:- shadyabhi@shadyabhi-desktop:~$ cat /proc/acpi/wakeup Device S-state… >>> More
Disabling Keyboard Wakeup for Ubuntu 10.04 on Acer 1810TZ

as seen on Super User - Search for 'Super User'
My Acer Aspire 1810TZ laptop suspends fine but wakes up on any slight key-press. I would like to disable this behaviour. I read that it involves disabling something in the /proc/acpi/wakeup but SLPB does not seem to be listed at all. root@1810TZ:/etc# cat /proc/acpi/wakeup Device S-state Status… >>> More
Wakeup on LAN script works from Mac, but not Windows 7

as seen on Super User - Search for 'Super User'
I have a Linux server on my local network that is set up to use wakeup on lan. I copied this script verbatim, just replacing the MAC address in the example use. When I run this script on a Mac, the server wakes up. When I run it from Windows 7 (32-bit Ultimate) it doesn't do anything (note that the… >>> More