Ubuntu – Computer won’t wake from suspend

12.04suspend

I have Ubuntu 12.04 on my Dual screen desktop setup and its been working great. Even in 11.10 my computer wouldn't wake from Suspend. Its been bugging me and now I would like to do something about it.

Here is my lspci –> http://pastebin.ubuntu.com/1027728/

Still an amateur Ubuntu user, so let me know of any more information I can provide.

Thanks for your time.

Best Answer

I reckon it is this nvidia bug that is causing your woes:

https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-173/+bug/948053

The 173 nvidia branch is not available as a package for 12.04 and nvidia current doesn't work well for old cards. My solution was to get a new 600 series card, as I hope to avoid this kind of issue come october.

However there are a couple of other solutions.

Solution A use nouveau until the 173 driver is packages (it looks on that bug report that the new driver could be packaged pretty soon, subscribe to the bug report for email updates)

This will disable the nvidia_current driver and enable nouveau:

sudo jockey-text -d xorg:nvidia_current

Solution B

Download and execute this binary to build a 173 driver which works with the version of x.org precise ships with: ftp://download.nvidia.com/XFree86/Linux-x86/173.14.35/

This solution will break whenever an updated kernel is released unfortunately and will force you to rebuild the driver

Related Solutions

Ubuntu 13.10 Suspend Crashes – Fix Suspend Crashes and Black Screen on Wake in KDE

I found this workaround. I made a script that switches to console before suspend and switches back after resume.

I put attached script into dir /etc/pm/sleep.d. I gave it the name fix-black-screen and made it executable (sudo chmod +x /etc/pm/sleep.d/fix-black-screen).

#!/bin/bash

case $1 in
suspend)
    # Suspending to RAM.
    chvt 1
    sleep 1
;;
resume)
    # Resume from suspend.
    sleep 1
    chvt 7
;;
esac

Original fix found here.

Suspend Issue – Fix Unable to Resume After Suspend on Lenovo Ideapad

A lot of graphic resume problems could be solved by doing the suspend/resume from the virtual console, so that after the resume a "refresh" is forced by the graphic drivers.

Check if the system suspend correctly from a virtual console:

switch to a virtual console with CtrlAltF1
login with your user and password
suspend the system (either using the suspend key-combo for your system, or issuing the command sudo /usr/sbin/pm-suspend)
resume -> you should have a working prompt (exactly the same screens as before), otherwise see FAIL
switch to the graphic console with CtrlAltF7
if all is ok, problem solved! You can follow the instruction below (from this answer) to make the switch automatic; otherwise, see FAIL

If something is still wrong...

FAIL: So the problem is another one --- I do not have that laptop so I can't really help a lot more. Maybe studying the content of file /var/log/pm-suspend.log can shed some light.

How to make the switch automatic

edit/create the file

gksudo gedit /etc/pm/sleep.d/01_switchvt

Put this content in it:

#!/bin/sh

# Switch to a VC before suspending and back after resume

case "$1" in
    resume|thaw)
        chvt 7
    ;;
    suspend|hibernate)
        chvt 1
    ;;
esac

save and exit
make it executable:

sudo chmod 755 /etc/pm/sleep.d/01_switchvt

Notice in step 2, most of the installations will need the command chvt 7 --- this is the same as pushing ctrl-alt-F7 to go back to the graphic screen. If you need another key combo, change the "7" there accordingly.

Best Answer

Related Solutions

Ubuntu 13.10 Suspend Crashes – Fix Suspend Crashes and Black Screen on Wake in KDE

Suspend Issue – Fix Unable to Resume After Suspend on Lenovo Ideapad

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