Maverick fails to suspend to ram

[MountainX]

It looks like I lucked into a solution finally after five months! All it took was a new release of Ubuntu! (And a suggestion from a Canonical support engineer.)

I installed the Natty kernel (2.6.38-4) and the Natty linux-firmware package on my existing Maverick installation and now my computer suspends and resumes perfectly, even with NFS shares open. I'm going to stick with this solution. I don't plan to upgrade to Natty (seems too buggy), but I will use the Natty kernel backports when they are available.

Here are my exact steps:

uname -a
Linux desktop 2.6.35-28-generic #50-Ubuntu SMP Fri Mar 18 18:42:20 UTC 2011 x86_64 GNU/Linux

Browse this website http://kernel.ubuntu.com/ 
I want v2.6.38.4-natty (there are some for 2.6.39 too)

wget  http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.38.4-natty/linux-headers-2.6.38-02063804_2.6.38-02063804.201104221009_all.deb

wget  http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.38.4-natty/linux-headers-2.6.38-02063804-generic_2.6.38-02063804.201104221009_amd64.deb

wget  http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.38.4-natty/linux-image-2.6.38-02063804-generic_2.6.38-02063804.201104221009_amd64.deb

Make absolutely sure that you install them in this order : 

sudo dpkg -i linux-headers-2.6.38-02063804_2.6.38-02063804.201104221009_all.deb

sudo dpkg -i linux-headers-2.6.38-02063804-generic_2.6.38-02063804.201104221009_amd64.deb

sudo dpkg -i linux-image-2.6.38-02063804-generic_2.6.38-02063804.201104221009_amd64.deb

OOOPS - errors!!!
Actually, they are warnings, but they are imporant and I needed to fix them:
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168d-2.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168d-1.fw for module r8169

Here's how to fix firmware for 8169 using linux-firmware package from natty:

wget https://launchpad.net/ubuntu/+archive/primary/+files/linux-firmware_1.49_all.deb
sudo dpkg -i linux-firmware_1.49_all.deb 
sudo update-initramfs -u

sudo update-grub

reboot

uname -a
Linux desktop 2.6.38-02063804-generic #201104221009 SMP Fri Apr 22 10:11:24 UTC 2011 x86_64 GNU/Linux

Seems to have fixed many of my problems! So far this is a huge improvement :grin:
(I'll do more testing over the next few days...)

[airtonix]

I actually resorted to this dbus method instead :

#!/bin/bash
#Suspend

dbus-send --session --dest=org.gnome.ScreenSaver --type=method_call --print-reply /ScreenSaver org.gnome.ScreenSaver.Lock
dbus-send --system --print-reply --dest="org.freedesktop.Hal" /org/freedesktop/Hal/devices/computer org.freedesktop.Hal.Device.SystemPowerManagement.Suspend int32:0

Locks the screen and suspends.

[MountainX]

UPDATE: For anyone reading my solution (2 posts above) and on a laptop, be aware of this:
http://www.phoronix.com/scan.php?pag...item&px=OTM3NQ
Linux kernel power bug in 2.6-38 (Natty kernel)

I'm on a desktop so I don't care too much about 10 or 15% greater power consumption for a few weeks or however long it is until the bug is resolved. But laptop/notebook users will certainly care. It kinda sucks that the new kernel fixes this suspend/resume bug but adds a significant new bug.

EDIT: hmmm, there is a comment that says, "fix released"... wonder if this is really fixed so quickly!?
https://bugs.launchpad.net/ubuntu/+s...ux/+bug/760131

[jinbatsu]

@MountainX, thank you for the solution linux-firmware package from natty.
I already install latest Kernel backport natty in my Lucid.

With this command in terminal:

sudo add-apt-repository ppa:kernel-ppa/ppa
sudo apt-get update
sudo apt-get install linux-image-generic-lts-backport-natty linux-headers-generic-lts-backport-natty

And after getting warning firmware, I continue with your command in terminal:

wget https://launchpad.net/ubuntu/+archive/primary/+files/linux-firmware_1.49_all.deb
sudo dpkg -i linux-firmware_1.49_all.deb 
sudo update-initramfs -u

sudo update-grub

And viola, all done, my Lucid (10.04) is now Kernel 2.6.38-12.
This fixed my error msg during boot:

softreset failed device not ready

Thank You!