As suggest in https://bugs.freedesktop.org/show_bug.cgi?id=93329, could you please help test S3 in a minimal Linux kernel(w/o graphic loaded) by: append ‘init=/bin/bash nomodeset text’ in grub’s command line and 
test the following command respectively:
echo freezer > /sys/power/pm_test (wait for 5 second to see if it returns)

echo devices > /sys/power/pm_test(wait for 5 second to see if it returns)

echo platform > /sys/power/pm_test(wait for 5 second to see if it returns)

echo processors > /sys/power/pm_test(wait for 5 second to see if it returns)

echo core > /sys/power/pm_test(wait for 5 second to see if it returns)

please also provide serial port output and dmesg when you are doing the test.


Yu

(In reply to yu.c.chen@intel.com from comment #1)
> As suggest in https://bugs.freedesktop.org/show_bug.cgi?id=93329, could you
> please help test S3 in a minimal Linux kernel(w/o graphic loaded) by: append
> ‘init=/bin/bash nomodeset text’ in grub’s command line and 
> test the following command respectively:
> echo freezer > /sys/power/pm_test (wait for 5 second to see if it returns)
> 
> echo devices > /sys/power/pm_test(wait for 5 second to see if it returns)
> 
> echo platform > /sys/power/pm_test(wait for 5 second to see if it returns)
> 
> echo processors > /sys/power/pm_test(wait for 5 second to see if it returns)
> 
> echo core > /sys/power/pm_test(wait for 5 second to see if it returns)
> 
> please also provide serial port output and dmesg when you are doing the test.
> 
> 
> Yu


Hi Yu :

I was not able to boot the BXT-P with the option "init=/bin/bash" because simply the DUT does not boot, it always stop in initramfs prompt, on the other hand i was able to boot with "nomodeset and text" options in the grub.
So once there i did one by one command and then i send the DUT to sleep (echo mem > /sys/power/state), and after each command the DUT returns (please see dmesg.log and test.log)

As well i have to comment that i've update the BIOS version and KSC of my BXT-P

Ifwi       : 119.10
Bxt SOC    : A0
KSC        : 1.06
GOP        : 10.0.1022
Board ID   : APL RVP 1A

Created attachment 121004 [details]
dmesg.log 2

Created attachment 121005 [details]
test.log

So when booted with "nomodeset" and "text" together,
the 5 test suspends worked, yes?

please do the same without echoing anything to pm_test.

it would also be good to confirm the results of those same 5
experiments when booting with default cmdline -- ie no "nomodeset" "text".

(In reply to Len Brown from comment #5)
> So when booted with "nomodeset" and "text" together,
> the 5 test suspends worked, yes?  <<-- that's correct
> 
> please do the same without echoing anything to pm_test.

Hi Len Brown :

The tests needs 'echo' command because without it the next parameters are recognized as a command.

I tried the following with default cmdline (without "text nomodeset")

Command  : echo freezer > /sys/power/pm_test
Behavior : after type the below command and send the DUT to S3 state with the command (echo mem > /sys/powe/state) looks like that the screen is frozen for a couple of seconds and then the screen come back normal, also i have to comment that the postcode remains the same '00AD'

Command  : echo devices > /sys/power/pm_test
Behavior : after type the below command and send the DUT to S3 state with the command (echo mem > /sys/powe/state) the screen goes black and returns after a few seconds and then come back normal, also i have to comment that the postcode remains the same '00AD'. 

Command  : echo platform > /sys/power/pm_test
Behavior : after type the below command and send the DUT to S3 state with the command (echo mem > /sys/powe/state) the DUT change its postcode to "0003" and the screen goes back for a few seconds and then come back normal.

Command  : echo processors > /sys/power/pm_test
Behavior : after type the below command and send the DUT to S3 state with the command (echo mem > /sys/powe/state) the screen goes black and returns after a few seconds and then come back normal, also the postcode remains the same as "0003"

Command  : echo core> /sys/power/pm_test
Behavior : after type the below command and send the DUT to S3 state with the command (echo mem > /sys/powe/state) the screen goes black and returns after a few seconds and then come back normal, also the postcode remains the same as "0003"

Please see the attachements :
dmesg2.log

Created attachment 121041 [details]
dmesg2.log

comment #8 has this:

[  494.629116] iwlwifi 0000:03:00.0: Failed to load firmware chunk!
[  494.629122] iwlwifi 0000:03:00.0: Could not load the [0] uCode section
[  494.629125] iwlwifi 0000:03:00.0: Failed to start INIT ucode: -110
[  494.629126] iwlwifi 0000:03:00.0: Failed to run INIT ucode: -110
[  494.629261] ------------[ cut here ]------------
[  494.629268] WARNING: CPU: 0 PID: 2336 at /home/shared/kernels/drm-intel-testing/net/mac80211/util.c:1770 ieee80211_reconfig+0x20b/0xdb0 [mac80211]()
[  494.629269] Hardware became unavailable upon resume. This could be a software issue prior to suspend or a hardware issue.
...

Which experiment resulted in that error?

Does that error go away if iwlwifi is unloaded/disabled before the suspend?

*** Bug 93329 has been marked as a duplicate of this bug. ***

Please refer to Jira LCK-2823. Put all information you can to help on that Jira and get info from there because apparently we have non graphics related issues causing the suspend/resume bugs that are under investigation.

Humbeberto, could you please check if unloading wifi module you can get the suspend resume working?
(reopening since I couldn't find you at that Jira)

ops, sorry for the noise. Please keep this closed and refer to LCK-2823. (You Humberto had been added there already)

So closed. Let's track LCK-2823 instead.