Return from S3 Suspend to RAM alwaws reset session to greeter on recent updates

[Nilfred]

I used to let my PC sleep to S3 and turn it on remotely or on demand.
At some point after recent updates it resume to "Gnome Greeter?" and ask for username and password, a screen I'm not used to see but I know how to use it:
I put my password and hopefully everything is where I left: But no, the session start over from the beginning :-(

I recall from memory an update to AMD proprietary driver, but there is no route back.
I update the kernel to 3.8.0-35 before report, but I have the bug from before.
Is there a log of recent updates?
If there is a log: Can I undo an update?

lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.4 LTS
Release: 12.04
Codename: precise

uname -r -v -p
3.8.0-35-generic #52~precise1-Ubuntu SMP Thu Jan 30 17:24:40 UTC 2014 x86_64

lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h Processor Root Complex
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] BeaverCreek [Radeon HD 6550D]
00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] BeaverCreek HDMI Audio [Radeon HD 6500D and 6400G-6600G series]
00:10.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 03)
00:10.1 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 03)
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 40)
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller (rev 11)
00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 11)
00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller (rev 11)
00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 11)
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 13)
00:14.1 IDE interface: Advanced Micro Devices, Inc. [AMD] FCH IDE Controller
00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD] FCH Azalia Controller (rev 01)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 11)
00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] FCH PCI Bridge (rev 40)
00:14.5 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller (rev 11)
00:15.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Hudson PCI to PCI bridge (PCIE port 0)
00:15.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Hudson PCI to PCI bridge (PCIE port 1)
00:15.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Hudson PCI to PCI bridge (PCIE port 2)
00:15.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Hudson PCI to PCI bridge (PCIE port 3)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 0 (rev 43)
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 6
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 5
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 7
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
04:00.0 USB controller: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller
05:00.0 SATA controller: ASMedia Technology Inc. ASM1062 Serial ATA Controller (rev 01)

[Nilfred (nilfred)]

Oops, post to AWN proyect

[Nilfred (nilfred)]

OK, is an awn bug then.
I was following the guidelines to remove the green plus sign so:
https://bugs.launchpad.net/awn/+bug/990774

# remove libdesktop-agnostic-cfg-keyfile
dpkg --get-selections | grep agnostic
sudo apt-get install libdesktop-agnostic-cfg-gconf
sudo apt-get remove libdesktop-agnostic-cfg-keyfile
dpkg --get-selections | grep agnostic

And Suspend to RAM (STR/S3) stopped working.

So I report the bug with the https://bugs.launchpad.net/awn/+bug/990774 opened by mistake and the report goes to awn instead of ubuntu. But was not a mistake after all:

sudo apt-get install libdesktop-agnostic-cfg-keyfile
sudo apt-get remove libdesktop-agnostic-cfg-gconf

And Suspend to RAM (STR/S3) start working again :)

So I removed AWN and replaced with Cairo-glx.