Arch Linux

Discully

Member

Registered: 2014-06-17

Posts: 3

Suspend to RAM works, but unable to wake it up

From a virtual console (excluding X problems) I do `systemctl suspend` or close laptop lid.

Expected behaviour: laptop wakes up when I tap space button
Actual behaviour: reinserting battery is only way to wake it up.

Not even holding down power button yields a response. Here is log from boot:
http://bpaste.net/show/379150/

Laptop is a packard bell intel atom CPU Z520 1.33GHz with gfx card: Intel GMA 500 series, also known by it's codename Poulsbo.

How can I debug this further?

fungle

Member

Registered: 2014-05-01

Posts: 81

Re: Suspend to RAM works, but unable to wake it up

Look at

 cat /proc/acpi/wakeup 

to see what acpi events are enabled. It seems like from your journal logs that LID is registered so does it wakeup when you open the lid?

Discully

Member

Registered: 2014-06-17

Posts: 3

Re: Suspend to RAM works, but unable to wake it up

Opening lid do not wake it up. The only way to make laptop usable again is reinserting battery.

Device    S-state      Status   Sysfs node
AZAL      S3    *disabled  pci:0000:00:1b.0
P0P1      S4    *disabled  pci:0000:00:1e.0
EHC1      S3    *enabled   pci:0000:00:1d.0
USB1      S3    *disabled
USB2      S3    *disabled
USB3      S3    *disabled
USB4      S3    *disabled
EHC2      S3    *enabled   pci:0000:00:1a.0
USB5      S3    *disabled
USB6      S3    *disabled
USB7      S3    *disabled
RP01      S4    *disabled  pci:0000:00:1c.0
PEG5      S4    *disabled

Last edited by Discully (2014-06-17 02:58:44)

fungle

Member

Registered: 2014-05-01

Posts: 81

Re: Suspend to RAM works, but unable to wake it up

Try adding lid and power button to /proc/acpi/wakeup like so:

sudo bash -c 'echo LID > /proc/acpi/wakeup'
sudo bash -c 'echo PWRB > /proc/acpi/wakeup'

Discully

Member

Registered: 2014-06-17

Posts: 3

Re: Suspend to RAM works, but unable to wake it up

After running those two commands, suspend to RAM stopped working. What instead happened is frozen screen with terminal marker frozen top left and full power on. But holding down power button for a few seconds did reboot.