Ubuntu
acpi-support package

Sleep/Hibernate causes system to freeze

Bug #34750 reported by Phil Worrall
8
Affects Status Importance Assigned to Milestone
acpi-support (Ubuntu)
New
Medium
Registry Administrators

Bug Description

Hi im testing a HP ZE2355EA laptop with Ubuntu Dapper Flight 5.

When I try to hibernate or put the laptop to sleep the system to freeze.

The steps to reproduce.

1. Boot into Ubuntu Dapper Flight 5 and login.
2. Right click power management icon in the taskbar->hibernate.
3. Observe laptop monitor turns off and some hard disk activity.
4. Laptop hard disk remains on and fan continues spinning.
5. Try to press the power button or move the mouse to turn the laptop on and observe no response from the laptop.
6. A reset is required to get back into ubuntu. observe that the system didnt save its state.

Expected bahaviour.

for the laptop to switch off completely and save its current memory contents to disk.

thanks

Revision history for this message
Sylvek (smaucourt-deactivatedaccount) wrote :

the same : https://launchpad.net/distros/ubuntu/+source/acpi-support/+bug/34721

Changed in acpi-support:
assignee: nobody → ubuntu-laptop
Revision history for this message
Phil Worrall (phil-w) wrote :

I notice that in #34721the laptop hibernates/sleeps if the AC power cord is connected but for me the laptop doesn't hibernate/sleep in any situation, AC powered or otherwise.

Revision history for this message
Paul Sladen (sladen) wrote : Re: [Bug 34750] Sleep/Hibernate causes system to freeze

> 3. Observe laptop monitor turns off and some hard disk activity.
> 4. Laptop hard disk remains on and fan continues spinning.

Could you try setting:

  USE_DPMS=false

in:

  /etc/default/acpi-support

and see whether that shows anything on the screen about how far the process
has got it why it might not be proceeding further?

Revision history for this message
Phil Worrall (phil-w) wrote :

Sorry for the long delay in providing more information. I have just re-tested the hibernate and suspend support for this laptop under Ubuntu 6.06 LTS and found the same problem as with earlier releases, except that the laptop now goes back into X once hibernate fails INSTEAD of locking up the computer.

After setting USE_DPMS=false in /etc/default/acpi-support I receive the following error after clicking hibernate from the gnome power manager.

"Error microcode: bcm43xx_microcode5.fw not available or load failed" repeated several times before the laptop eventually goes back into X.

To post a comment you must log in.
This report contains Public information  
Everyone can see this information.
Subscribing...

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.