Cannot wake from suspend with keyboard or mouse on Dell XPS 17 L702X

Ahaaa · 04-17-2012, 11:17 PM

Hi, my Dell XPS 17 L702X laptop will only wake from suspend with the power button. I would like to wake up using the keyboard, trackpad buttons, and/or my external keyboard/mouse. Originally, Windows (dual-booted) would not allow wake from keyboard/USB either, so I went into BIOS and enabled wake from USB, which solved the problem in Windows.

Back in Linux, I tried

Code:

$ lspci|grep USB
00:1a.0 USB Controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
00:1d.0 USB Controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
04:00.0 USB Controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04)

Then, I tried

Code:

$ cat /proc/acpi/wakeup

There were no items labelled USB, but it did include the lines

Code:

EHC1      S3    *disabled  pci:0000:00:1d.0
EHC2      S3    *disabled  pci:0000:00:1a.0
PXSX      S4    *disabled  pci:0000:04:00.0

Then, I tried

Code:

$ echo ... > /proc/acpi/wakeup

where "..." was EHC1, EHC2, PXSX. The first two options toggled the items to enabled, but the latter did nothing. In any case, none of these options solved the problem for me.

Would anyone have any suggestions as to how to proceed from here?

Cheers.

Ubuntu 11.10
3.0.0-17-generic
Dell XPS 17 L702X

jefro · 04-19-2012, 10:03 AM

EHC1 S3 *disabled pci:0000:00:1d.0
EHC2 S3 *disabled pci:0000:00:1a.0
PXSX S4 *disabled pci:0000:04:00.0

Doesn't one of the S states have to be enabled? Not even sure about that since it is all pci. Problem is that it could be pci to usb attached usb device. Never know about laptops. One of the S states needs to provide constant or enough power to the usb so both the OS and the bios have to be in agreement there.

Anyway peek at these for more clues.

http://forums.fedoraforum.org/showthread.php?t=241436

http://halffull.org/2010/03/27/linux-wake-on-keyboard/

http://prodia.co.uk/blog/doahh/entry..._up_from_sleep

Ahaaa · 04-20-2012, 08:16 PM

Thank you for the reply.

Quote:

Originally Posted by jefro

Doesn't one of the S states have to be enabled?

I'm not 100% sure I understand what you mean there, but the threads you linked to are pretty much what I had tried before. I can run the following command:

Code:

$ cat /proc/acpi/wakeup
Device	S-state	  Status   Sysfs node
P0P1	  S4	*disabled  
EHC1	  S3	*disabled  pci:0000:00:1d.0
EHC2	  S3	*disabled  pci:0000:00:1a.0
HDEF	  S3	*disabled  pci:0000:00:1b.0
RP01	  S3	*disabled  pci:0000:00:1c.0
PXSX	  S4	*disabled  
RP02	  S3	*disabled  pci:0000:00:1c.1
PXSX	  S4	*disabled  pci:0000:03:00.0
RP04	  S3	*disabled  pci:0000:00:1c.3
PXSX	  S4	*disabled  pci:0000:04:00.0
RP05	  S3	*disabled  pci:0000:00:1c.4
PXSX	  S4	*disabled  
RP06	  S4	*disabled  pci:0000:00:1c.5
PXSX	  S4	*enabled   pci:0000:0a:00.0
PEG0	  S4	*disabled  pci:0000:00:01.0
PEGP	  S4	*disabled  pci:0000:01:00.0
LID0	  S3	*enabled

Normally, you would expect to see USB0, USB1, etc. in the left column, and then you can toggle them from disabled to enabled using

Code:

echo USB0 > /proc/acpi/wakeup

In my case, the problem is that there is nothing marked USB0, USB1, etc.

Cheers.

Ahaaa · 04-30-2012, 05:25 AM

No idea why, but the latest Ubuntu update to 12.04 seems to have fixed this for me. I now run

Code:

$ cat /proc/acpi/wakeup
Device	S-state	  Status   Sysfs node
P0P1	  S4	*disabled  
EHC1	  S3	*enabled   pci:0000:00:1d.0
EHC2	  S3	*enabled   pci:0000:00:1a.0
HDEF	  S3	*disabled  pci:0000:00:1b.0
RP01	  S3	*disabled  pci:0000:00:1c.0
PXSX	  S4	*disabled  
RP02	  S3	*disabled  pci:0000:00:1c.1
PXSX	  S4	*disabled  pci:0000:03:00.0
RP04	  S3	*disabled  pci:0000:00:1c.3
PXSX	  S4	*enabled   pci:0000:04:00.0
RP05	  S3	*disabled  pci:0000:00:1c.4
PXSX	  S4	*disabled  
RP06	  S4	*disabled  pci:0000:00:1c.5
PXSX	  S4	*enabled   pci:0000:0a:00.0
PEG0	  S4	*disabled  pci:0000:00:01.0
PEGP	  S4	*disabled  pci:0000:01:00.0
LID0	  S3	*enabled

And the only differences are that EHC1, EHC2 and PXSX are enabled. But for some reason it works! Anyway, thanks for your help.

Ahaaa · 05-02-2012, 06:19 PM

Sigh. I'm marking this as unsolved again. For some reason it only partially works. I have a laptop with "internal" keyboard and trackpad, and normally I connect an external (Apple aluminium) keyboard and (Razer Deathadder) mouse to the keyboard's hub. The external keyboard can wake up the computer, but not the internal keyboard/trackpad, nor the mouse. It's not a big deal, but it's certainly not "expected" behaviour.