LinuxAnswers - the LQ Linux tutorial section.
Go Back > Forums > Linux Forums > Linux - General
User Name
Linux - General This Linux forum is for general Linux questions and discussion.
If it is Linux Related and doesn't seem to fit in any other forum then this is the place.


  Search this Thread
Old 07-02-2012, 04:06 AM   #1
LQ Newbie
Registered: Jul 2012
Location: Norway
Distribution: Ubuntu
Posts: 2

Rep: Reputation: Disabled
Long resume time (from suspend) with AMD Fusion

If I make a brand new install of Ubuntu 12.04 64-bit, update it fully, and run the command pm-suspend, then the time for it to resume from sleep is 4 seconds with an Atom/Ion platform and 17 secs with AMD Fusion E-350. But systems report in syslog that resume took 2.5 secs.

I have looked through logs syslog, Xorg.0.log, pm-powersave.log, pm-suspend.log, kern.log, dmesg, boot and boot.log and compared them for the 2 systems. I can't spot any exciting differences (apart from in pm-powersave.log seeing one occurrance of "Setting Host Bridge 0000:00:00.0 to on" for Atom and 8 such lines for E-350, for addresses 0000:00:18.0 to 0000:00:18.7).

A peculiar thing in syslog is that all events for suspend and subsequent resume are logged during the same second, i e all suspend and resume events have the same time stamp, which if it was true would mean that all of the suspend process, all of my 10 minute coffe break in between, and all of the resume process took place during < 1 second. Either that or the clock is standing still.

One thing I REALLY would have use for is a log with proper time stamps for each event during resume, so that I could see what is going on: Is it "locked" for several seconds, or in a loop, or waiting for something, etc. But the logs I found don't have that. And that it reports that resume took 2.5 secs in the log to me could indicate that whatever causes the extra 13 sec delay happens before the log starts or something?

With fglrx it is even slower, but I haven's tested that in great detail. I understand graphics driver has an influence on ACPI somehow even though ACPI has its own drivers. It also isn't faster with Linux Mint.
Old 07-09-2012, 08:01 AM   #2
LQ Newbie
Registered: Jul 2012
Location: Norway
Distribution: Ubuntu
Posts: 2

Original Poster
Rep: Reputation: Disabled
Nobody in the world has installed Ubuntu on a Fusion board? :-/


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
TuxOnIce, device resume from suspend takes way too long whoopie Linux - Software 3 08-08-2011 08:35 AM
[SOLVED] Cannot Suspend and Resume - ThinkPad Edge 13 (AMD-ATI) bogzab Slackware 4 01-19-2011 04:57 PM
LSI Fusion driver take long time to load when booting in quiet mode dbrazeau Linux - Kernel 2 03-30-2010 06:11 PM
Lenovo Thinkpad T61p - Takes a long time to resume from suspend kwesadilo Linux - Laptop and Netbook 5 07-26-2008 01:53 PM
Hibernate Resume Hangs for long time lm317t Linux - Software 1 05-30-2006 10:41 AM

All times are GMT -5. The time now is 11:12 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration