View Full Version : [ubuntu] acer 4620z suspend to ram

July 4th, 2008, 01:35 AM
I know that this is a problem with a lot of computers, but I have tried all of the tweaks to /etc/default/acpi-support that have been mentioned for other computers with hardware like mine. With the standard set up and most of the small changes that I have tried the computer will go to suspend just fine. When I try to wake the computer it tries to wake (lights turn green sounds like the hard drive might start to spin) but then just shuts off. I changed a few things and got it to fail at sleeping and hang with just a blinking prompt.

July 4th, 2008, 03:28 AM
The problem may be with your bios. Have you checked to make sure the suspend, aka sleep mode, is enabled?

July 4th, 2008, 12:56 PM
I had not even thought of that. I checked in all the menus for the bios and there was nothing about enabling suspend to ram. It is a pheonix bios on this computer if that helps any.

July 26th, 2008, 02:42 AM
Gotta bump this. I have the same laptop and the same issue. I've done all the commands at http://en.opensuse.org/S2ram and still no dice.

August 18th, 2008, 09:03 PM
I have similar symptoms on an Acer Extensa 5220. There is poweroff after going down to suspend.

Anyway, I had working suspend on the latest Fedora on this system, so it seems it is not a BIOS issue.

Maybe something around ACPI.

There are traces that some others also having the same issue. Also on some TravelMate series.


Update: I was messing around with the procedure described here: https://wiki.ubuntu.com/DebuggingKernelSuspend
I have received the information that the problem is probably with "device ttyp7", probably also known as "device device:20".
Currently I have no clue of what this device may be. Any ideas?