Comment 27 for bug 1550879

1. All those information has been provided in the comments, I don't understand what you mean. Anyway, I will answer those questions one by one.

Which part of the process does the issue occur with, the suspend to ram, or resuming from?
suspend to ram

2. Please advise how you suspended specifically. For example:

suspension failed in any way, first clipping my laptop screen doesn't work, executing pm-suspend or clicking the suspend button in gnome don't work either.

3. While booted into the latest non-daily mainline kernel, execute at a terminal:
cat /proc/acpi/wakeup > wakeup

content:
Device S-state Status Sysfs node
PEG2 S4 *disabled
PEGP S4 *disabled
RP09 S4 *disabled
PXSX S4 *disabled
RP10 S4 *disabled
PXSX S4 *disabled
RP11 S4 *disabled
PXSX S4 *disabled
RP12 S4 *disabled
PXSX S4 *disabled
RP13 S4 *disabled
PXSX S4 *disabled
RP01 S4 *disabled pci:0000:00:1c.0
PXSX S4 *disabled
RP02 S4 *disabled
PXSX S4 *disabled
RP03 S4 *disabled
PXSX S4 *disabled
RP04 S4 *disabled
PXSX S4 *disabled
RP05 S4 *disabled pci:0000:00:1c.4
PXSX S4 *enabled pci:0000:04:00.0
RP06 S4 *disabled pci:0000:00:1c.5
PXSX S4 *disabled pci:0000:05:00.0
RP07 S4 *disabled pci:0000:00:1c.6
PXSX S4 *disabled pci:0000:06:00.0
                *disabled platform:rtsx_pci_sdmmc.0
                *disabled platform:rtsx_pci_ms.0
RP08 S4 *disabled
PXSX S4 *disabled
RP17 S4 *disabled
PXSX S4 *disabled
RP18 S4 *disabled
PXSX S4 *disabled
RP19 S4 *disabled
PXSX S4 *disabled
RP20 S4 *disabled
PXSX S4 *disabled
RP14 S4 *disabled
PXSX S4 *disabled
RP15 S4 *disabled
PXSX S4 *disabled
RP16 S4 *disabled
PXSX S4 *disabled
PEG1 S4 *disabled pci:0000:00:01.0
PEGP S4 *disabled
PEG0 S4 *disabled pci:0000:00:01.1
PEGP S4 *disabled pci:0000:02:00.0
XHC S3 *enabled pci:0000:00:14.0
XDCI S4 *disabled
HDAS S4 *disabled pci:0000:00:1f.3
LID0 S3 *enabled platform:PNP0C0D:00

3. While booted into the latest non-daily mainline kernel, execute at a terminal:

sudo su
echo freezer > /sys/power/pm_test
exit

Please attach to your report the resume trace mentioned below.

While booted into the latest non-daily mainline kernel, execute at a terminal:

sudo su
echo devices > /sys/power/pm_test
exit

Please attach to your report the resume trace mentioned below.

While booted into the latest non-daily mainline kernel, execute at a terminal:

sudo su
echo platform > /sys/power/pm_test
exit

Please attach to your report the resume trace mentioned below.

While booted into the latest non-daily mainline kernel, execute at a terminal:

sudo su
echo processors > /sys/power/pm_test
exit

Please attach to your report the resume trace mentioned below.

While booted into the latest non-daily mainline kernel, execute at a terminal:

sudo su
echo core > /sys/power/pm_test
exit

Please attach to your report the resume trace mentioned below.

While booted into the latest non-daily mainline kernel, execute at a terminal:

sudo su
echo none > /sys/power/pm_test
exit

Please attach to your report the resume trace mentioned below.

Please provide the output of the following terminal command:

cat /sys/kernel/debug/suspend_stats

I ran those tests in a script, the commands and output can be find in the attachment of comment #17