system does not resume after suspend.

[Mitchell Kingsley]

After a duration of time, luna will not reload after a suspend. When the laptop lid is opened, all that shows is a black screen without any elements (cursor, text, ect..). Using a Samsung N220.

ProblemType: Bug
DistroRelease: elementary OS 0.2
Package: elementary-desktop 1.284-0~355~precise1 [origin: LP-PPA-elementary-os-daily]
ProcVersionSignature: Ubuntu 3.2.0-33.52-generic-pae 3.2.31
Uname: Linux 3.2.0-33-generic-pae i686
ApportVersion: 2.0.1-0ubuntu15
Architecture: i386
CrashDB: elementary_meta
Date: Wed Nov 21 08:26:43 2012
InstallationMedia: elementary OS 0.2 "Luna" - Beta 1 i386 (20121114)
MarkForUpload: True
ProcEnviron:
 LANGUAGE=en_CA:en
 PATH=(custom, no user)
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: elementary-meta
SuspiciousXErrors:

ThirdParty: True
UpgradeStatus: No upgrade log present (probably fresh install)

[Cody Garver (codygarver)]

From a duplicate: "When I suspend my computer, it shuts down fine. However, when I try to resume it, I don't have a video signal. The computer turns back on, but no video signal. I try mouse movements and button presses, but I couldn't get video signal to come back. I eventually had to do a power switch shutdown in order to reboot the computer to re-enter elementary."

[Launchpad Janitor (janitor)]

[Expired for elementary OS because there has been no activity for 60 days.]

[Or Schiro (orschiro)]

I am affected by this as well. I am using Freya Beta 3 on a Thinkpad X230. Steps to reproduce:

1. Allow your system to go automatically into suspend upon reaching a critical battery level.
2. Resume your system and wake your computer from suspend.

I am presented with a black screen. I can switch to another TTY using Ctrl + Alt + F2. I can login but running 'startx' only leads to the same black screen. I need to reboot my machine consequently.

[Or Schiro (orschiro)]

In addition to my previous comment. The black screen also occurs on resume from automatic suspend after X minutes of inactivity.

This is a very severe issue as it basically makes suspend unusable.

The only instance that does work is resume from suspend on lid close.

[Or Schiro (orschiro)]

I did some more investigation on this issue. It turns out that while the screen turns black, the system remains fully responsive. Thus, on facing the black screen I can enter my password which unlocks the login-screen and re-enables the screen again.

[Or Schiro (orschiro)]

Seems to be resolved for me with one of the recent updates. For anyone as well?

[Aditya Kashi (aditya-kashi)]

I have this problem in Freya as well.

[Jason Gambrel (jaygambrel)]

You could try a solution posted on https://www.reddit.com/r/elementaryos/comments/34dm4t/fixrestart_corrupted_mouse_after_dragging/
The post also mentions a fix for screen blanking after waking from suspend:

- Open /etc/default/acpi-support as root using scratch or nano:
sudo nano /etc/default/acpi-support

- Find the line "POST_VIDEO=true" and change it to "POST_VIDEO=false"
- Save the file
- Reboot

Jay

[Or Schiro (orschiro)]

Hi Jason,

Thanks for the link. I tried the suggestion to change POST_VIDEO=false but my X230 still occasionally fails to resume from suspend with a entirely black screen.

Regards,

Robert

[Guillermo Rodas (garethderioth)]

This bug is affecting Freya as well.