suspend vs usb and PS/2 ports

DISCUSSION Michael Tokarev 2 participants 6 messages Sep 30, 2009

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Michael Tokarev

author

2009-09-30 13:39 UTC #0 lore raw

Hello.

I've several PCs here which are able to wakeup - among others - from PS/2 and/or USB keyboard. Here for testing I'm using PS/2 keyboard and Asus M3A78-EM motherboard.

When I do poweroff from linux, the keyboard stays powered up as it should (according to the BIOS settings). But when I do suspend, keyboard is NOT powered anymore, and hence the system can't be woken up from it but only by using the power button.

This happens consistently for many kernel versions. To be fair, I don't even know if there was any kernel which does not show this
behaviour: old versions was unable to do suspend/resume cycle on this platform at all.

Any hints for this please?

Thanks!

/mjt

Rafael J. Wysocki

2009-09-30 21:53 UTC #1 lore raw

Quoted 14 lines · Michael Tokarev

Hello.
I've several PCs here which are able to wakeup - among others - from PS/2 and/or USB keyboard. Here for testing I'm using PS/2 keyboard and Asus M3A78-EM motherboard.
When I do poweroff from linux, the keyboard stays powered up as it should (according to the BIOS settings). But when I do suspend, keyboard is NOT powered anymore, and hence the system can't be woken up from it but only by using the power button.

Quoted 7 lines

This happens consistently for many kernel versions. To be fair, I don't even know if there was any kernel which does not show this
behaviour: old versions was unable to do suspend/resume cycle on this platform at all.
Any hints for this please?

With USB, I think keyboard wake-up is off by default as it causes some systems to wake up immediately after suspending. Alan and Oliver can provide more info about that.

I don't know about PS/2.

Can you post the contents of /proc/acpi/wakeup from one of these systems, please?

Best,
Rafael

Michael Tokarev

author

2009-09-30 22:03 UTC #2 lore raw

Quoted 21 lines · Rafael J. Wysocki

Quoted 20 lines · Michael Tokarev
Hello.
I've several PCs here which are able to wakeup - among others - from PS/2 and/or USB keyboard. Here for testing I'm using PS/2 keyboard and Asus M3A78-EM motherboard.
When I do poweroff from linux, the keyboard stays powered up as it should (according to the BIOS settings). But when I do suspend, keyboard is NOT powered anymore, and hence the system can't be woken up from it but only by using the power button.
This happens consistently for many kernel versions. To be fair, I don't even know if there was any kernel which does not show this
behaviour: old versions was unable to do suspend/resume cycle on this platform at all.

Quoted 5 lines

Quoted 1 line
Any hints for this please?
With USB, I think keyboard wake-up is off by default as it causes some systems to wake up immediately after suspending. Alan and Oliver can provide more info about that.

Actually I wasn't able to get any machine to resume based on USB devices - notable keyboard, be it sleep/power button (on the keyboards that have it) or any other combination of keys configured in the BIOS. Most motherboards I tried are from Asus, one or two from Gigabyte and one more from Biostar.

That's why I use PS/2=>USB adaptor, to connect an USB keyboard to a PS/2 port - this one works just fine, with all the mobos I tried (provided the appropriate BIOS settings are turned on and ever exists, to start with).

Quoted 4 lines

I don't know about PS/2.
Can you post the contents of /proc/acpi/wakeup from one of these systems, please?

Hm. That's.. curious. Here we go, my home machine whihc I turn on every day from a PS/2-connected keyboard:

Device S-state Status Sysfs node

PCE2	  S4	 disabled
PCE3	  S4	 disabled
PCE4	  S4	 disabled
PCE5	  S4	 disabled
PCE6	  S4	 disabled  pci:0000:00:06.0
RLAN	  S4	 disabled  pci:0000:02:00.0
PCE7	  S4	 disabled
PCE9	  S4	 disabled
PCEA	  S4	 disabled
PCEB	  S4	 disabled
PCEC	  S4	 disabled
SBAZ	  S4	 disabled  pci:0000:00:14.2
PS2K	  S4	 disabled  pnp:00:09
UAR1	  S4	 disabled  pnp:00:0a
P0PC	  S4	 disabled  pci:0000:00:14.4
UHC1	  S4	 disabled  pci:0000:00:12.0
UHC2	  S4	 disabled  pci:0000:00:12.1
UHC3	  S4	 disabled  pci:0000:00:12.2
USB4	  S4	 disabled  pci:0000:00:13.0
UHC5	  S4	 disabled  pci:0000:00:13.1
UHC6	  S4	 disabled  pci:0000:00:13.2
UHC7	  S4	 disabled  pci:0000:00:14.5

It's all disabled! But I *know* it wakes up from network and from ps/2 keyboard at least! In the corresponding BIOS menu almost everything is enabled (excluding RTC alarm, but including USB events). This is an Asus motherboard, M3A-78EM, with latest BIOS.

Here's another one, Gigabyte's GA-MA74GM-S2H,
which definitely wakes on network:

Device S-state Status Sysfs node

PCI0	  S5	 disabled  no-bus:pci0000:00
USB0	  S3	 disabled  pci:0000:00:12.0
USB1	  S3	 disabled  pci:0000:00:12.1
USB2	  S3	 disabled  pci:0000:00:12.2
USB3	  S3	 disabled  pci:0000:00:13.0
USB4	  S3	 disabled  pci:0000:00:13.1
USB5	  S3	 disabled  pci:0000:00:13.2
USB6	  S3	 disabled  pci:0000:00:14.5
SBAZ	  S4	 disabled  pci:0000:00:14.2
P2P	  S5	 disabled  pci:0000:00:14.4
PCE2	  S4	 disabled
PCE3	  S4	 disabled
PCE4	  S4	 disabled
PCE5	  S4	 disabled
PCE6	  S4	 disabled  pci:0000:00:06.0
PCE7	  S4	 disabled
PCE8	  S4	 disabled

hmm. Blaming BIOS, as usual? :)

But even if that's the case, why there's a difference between "just" power-off and power-off when suspending?

The kernel is 2.6.31 vanilla.

Thanks!

/mjt

Rafael J. Wysocki

2009-09-30 22:20 UTC #3 lore raw

Quoted 71 lines · Michael Tokarev

Quoted 21 lines · Rafael J. Wysocki
Quoted 20 lines · Michael Tokarev
Hello.
I've several PCs here which are able to wakeup - among others - from PS/2 and/or USB keyboard. Here for testing I'm using PS/2 keyboard and Asus M3A78-EM motherboard.
When I do poweroff from linux, the keyboard stays powered up as it should (according to the BIOS settings). But when I do suspend, keyboard is NOT powered anymore, and hence the system can't be woken up from it but only by using the power button.
This happens consistently for many kernel versions. To be fair, I don't even know if there was any kernel which does not show this
behaviour: old versions was unable to do suspend/resume cycle on this platform at all.
Quoted 5 lines
Quoted 1 line
Any hints for this please?
With USB, I think keyboard wake-up is off by default as it causes some systems to wake up immediately after suspending. Alan and Oliver can provide more info about that.
Actually I wasn't able to get any machine to resume based on USB devices - notable keyboard, be it sleep/power button (on the keyboards that have it) or any other combination of keys configured in the BIOS. Most motherboards I tried are from Asus, one or two from Gigabyte and one more from Biostar.
That's why I use PS/2=>USB adaptor, to connect an USB keyboard to a PS/2 port - this one works just fine, with all the mobos I tried (provided the appropriate BIOS settings are turned on and ever exists, to start with).
Quoted 4 lines
I don't know about PS/2.
Can you post the contents of /proc/acpi/wakeup from one of these systems, please?
Hm. That's.. curious. Here we go, my home machine whihc I turn on every day from a PS/2-connected keyboard:
Device S-state Status Sysfs node
PCE2	  S4	 disabled
PCE3	  S4	 disabled
PCE4	  S4	 disabled
PCE5	  S4	 disabled
PCE6	  S4	 disabled  pci:0000:00:06.0
RLAN	  S4	 disabled  pci:0000:02:00.0
PCE7	  S4	 disabled
PCE9	  S4	 disabled
PCEA	  S4	 disabled
PCEB	  S4	 disabled
PCEC	  S4	 disabled
SBAZ	  S4	 disabled  pci:0000:00:14.2
PS2K	  S4	 disabled  pnp:00:09
UAR1	  S4	 disabled  pnp:00:0a
P0PC	  S4	 disabled  pci:0000:00:14.4
UHC1	  S4	 disabled  pci:0000:00:12.0
UHC2	  S4	 disabled  pci:0000:00:12.1
UHC3	  S4	 disabled  pci:0000:00:12.2
USB4	  S4	 disabled  pci:0000:00:13.0
UHC5	  S4	 disabled  pci:0000:00:13.1
UHC6	  S4	 disabled  pci:0000:00:13.2
UHC7	  S4	 disabled  pci:0000:00:14.5

Quoted 1 line

It's all disabled!

Thanks. In fact, the 'disabled' column doesn't really mean totally disabled. It means one of the mechanisms one can use is disabled.

For PCI, 'disabled' in this column shouldn't really matter any more.

Quoted 29 lines

But I *know* it wakes up
from network and from ps/2 keyboard at least! In the corresponding BIOS menu almost everything is enabled (excluding RTC alarm, but including USB events). This is an Asus motherboard, M3A-78EM, with latest BIOS.
Here's another one, Gigabyte's GA-MA74GM-S2H,
which definitely wakes on network:
Device S-state Status Sysfs node
PCI0	  S5	 disabled  no-bus:pci0000:00
USB0	  S3	 disabled  pci:0000:00:12.0
USB1	  S3	 disabled  pci:0000:00:12.1
USB2	  S3	 disabled  pci:0000:00:12.2
USB3	  S3	 disabled  pci:0000:00:13.0
USB4	  S3	 disabled  pci:0000:00:13.1
USB5	  S3	 disabled  pci:0000:00:13.2
USB6	  S3	 disabled  pci:0000:00:14.5
SBAZ	  S4	 disabled  pci:0000:00:14.2
P2P	  S5	 disabled  pci:0000:00:14.4
PCE2	  S4	 disabled
PCE3	  S4	 disabled
PCE4	  S4	 disabled
PCE5	  S4	 disabled
PCE6	  S4	 disabled  pci:0000:00:06.0
PCE7	  S4	 disabled
PCE8	  S4	 disabled

Quoted 1 line

hmm. Blaming BIOS, as usual? :)

Nope. For the majority of devices we disable wake-up by default.

Quoted 2 lines

But even if that's the case, why there's a difference between "just" power-off and power-off when suspending?

These two cases are handled differently by BIOSes.

Can you please check if /sys/devices/.../power/wakeup contains 'enabled' for the PCI devices called USB0 - USB6 above?

Quoted 1 line

The kernel is 2.6.31 vanilla.

Better use 2.6.32-rc for debugging this.

Thanks,
Rafael

Rafael J. Wysocki

2009-09-30 22:21 UTC #4 lore raw

In reply to Michael Tokarev

Quoted 71 lines · Michael Tokarev

Quoted 21 lines · Rafael J. Wysocki
Quoted 20 lines · Michael Tokarev
Hello.
I've several PCs here which are able to wakeup - among others - from PS/2 and/or USB keyboard. Here for testing I'm using PS/2 keyboard and Asus M3A78-EM motherboard.
When I do poweroff from linux, the keyboard stays powered up as it should (according to the BIOS settings). But when I do suspend, keyboard is NOT powered anymore, and hence the system can't be woken up from it but only by using the power button.
This happens consistently for many kernel versions. To be fair, I don't even know if there was any kernel which does not show this
behaviour: old versions was unable to do suspend/resume cycle on this platform at all.
Quoted 5 lines
Quoted 1 line
Any hints for this please?
With USB, I think keyboard wake-up is off by default as it causes some systems to wake up immediately after suspending. Alan and Oliver can provide more info about that.
Actually I wasn't able to get any machine to resume based on USB devices - notable keyboard, be it sleep/power button (on the keyboards that have it) or any other combination of keys configured in the BIOS. Most motherboards I tried are from Asus, one or two from Gigabyte and one more from Biostar.
That's why I use PS/2=>USB adaptor, to connect an USB keyboard to a PS/2 port - this one works just fine, with all the mobos I tried (provided the appropriate BIOS settings are turned on and ever exists, to start with).
Quoted 4 lines
I don't know about PS/2.
Can you post the contents of /proc/acpi/wakeup from one of these systems, please?
Hm. That's.. curious. Here we go, my home machine whihc I turn on every day from a PS/2-connected keyboard:
Device S-state Status Sysfs node
PCE2	  S4	 disabled
PCE3	  S4	 disabled
PCE4	  S4	 disabled
PCE5	  S4	 disabled
PCE6	  S4	 disabled  pci:0000:00:06.0
RLAN	  S4	 disabled  pci:0000:02:00.0
PCE7	  S4	 disabled
PCE9	  S4	 disabled
PCEA	  S4	 disabled
PCEB	  S4	 disabled
PCEC	  S4	 disabled
SBAZ	  S4	 disabled  pci:0000:00:14.2
PS2K	  S4	 disabled  pnp:00:09
UAR1	  S4	 disabled  pnp:00:0a
P0PC	  S4	 disabled  pci:0000:00:14.4
UHC1	  S4	 disabled  pci:0000:00:12.0
UHC2	  S4	 disabled  pci:0000:00:12.1
UHC3	  S4	 disabled  pci:0000:00:12.2
USB4	  S4	 disabled  pci:0000:00:13.0
UHC5	  S4	 disabled  pci:0000:00:13.1
UHC6	  S4	 disabled  pci:0000:00:13.2
UHC7	  S4	 disabled  pci:0000:00:14.5

Quoted 1 line

It's all disabled!

Thanks. In fact, the 'disabled' column doesn't really mean totally disabled. It means one of the mechanisms one can use is disabled.

For PCI, 'disabled' in this column shouldn't really matter any more.

Quoted 29 lines

But I *know* it wakes up
from network and from ps/2 keyboard at least! In the corresponding BIOS menu almost everything is enabled (excluding RTC alarm, but including USB events). This is an Asus motherboard, M3A-78EM, with latest BIOS.
Here's another one, Gigabyte's GA-MA74GM-S2H,
which definitely wakes on network:
Device S-state Status Sysfs node
PCI0	  S5	 disabled  no-bus:pci0000:00
USB0	  S3	 disabled  pci:0000:00:12.0
USB1	  S3	 disabled  pci:0000:00:12.1
USB2	  S3	 disabled  pci:0000:00:12.2
USB3	  S3	 disabled  pci:0000:00:13.0
USB4	  S3	 disabled  pci:0000:00:13.1
USB5	  S3	 disabled  pci:0000:00:13.2
USB6	  S3	 disabled  pci:0000:00:14.5
SBAZ	  S4	 disabled  pci:0000:00:14.2
P2P	  S5	 disabled  pci:0000:00:14.4
PCE2	  S4	 disabled
PCE3	  S4	 disabled
PCE4	  S4	 disabled
PCE5	  S4	 disabled
PCE6	  S4	 disabled  pci:0000:00:06.0
PCE7	  S4	 disabled
PCE8	  S4	 disabled

Quoted 1 line

hmm. Blaming BIOS, as usual? :)

Nope. For the majority of devices we disable wake-up by default.

Quoted 2 lines

But even if that's the case, why there's a difference between "just" power-off and power-off when suspending?

These two cases are handled differently by BIOSes.

Can you please check if /sys/devices/.../power/wakeup contains 'enabled' for the PCI devices called USB0 - USB6 above?

Quoted 1 line

The kernel is 2.6.31 vanilla.

Better use 2.6.32-rc for debugging this.

Thanks,
Rafael

Michael Tokarev

author

2009-09-30 22:03 UTC #5 lore raw

In reply to Rafael J. Wysocki

Quoted 21 lines · Rafael J. Wysocki

Quoted 20 lines · Michael Tokarev
Hello.
I've several PCs here which are able to wakeup - among others - from PS/2 and/or USB keyboard. Here for testing I'm using PS/2 keyboard and Asus M3A78-EM motherboard.
When I do poweroff from linux, the keyboard stays powered up as it should (according to the BIOS settings). But when I do suspend, keyboard is NOT powered anymore, and hence the system can't be woken up from it but only by using the power button.
This happens consistently for many kernel versions. To be fair, I don't even know if there was any kernel which does not show this
behaviour: old versions was unable to do suspend/resume cycle on this platform at all.

Quoted 5 lines

Quoted 1 line
Any hints for this please?
With USB, I think keyboard wake-up is off by default as it causes some systems to wake up immediately after suspending. Alan and Oliver can provide more info about that.

Quoted 4 lines

I don't know about PS/2.
Can you post the contents of /proc/acpi/wakeup from one of these systems, please?

Hm. That's.. curious. Here we go, my home machine whihc I turn on every day from a PS/2-connected keyboard:

Device S-state Status Sysfs node

PCE2	  S4	 disabled
PCE3	  S4	 disabled
PCE4	  S4	 disabled
PCE5	  S4	 disabled
PCE6	  S4	 disabled  pci:0000:00:06.0
RLAN	  S4	 disabled  pci:0000:02:00.0
PCE7	  S4	 disabled
PCE9	  S4	 disabled
PCEA	  S4	 disabled
PCEB	  S4	 disabled
PCEC	  S4	 disabled
SBAZ	  S4	 disabled  pci:0000:00:14.2
PS2K	  S4	 disabled  pnp:00:09
UAR1	  S4	 disabled  pnp:00:0a
P0PC	  S4	 disabled  pci:0000:00:14.4
UHC1	  S4	 disabled  pci:0000:00:12.0
UHC2	  S4	 disabled  pci:0000:00:12.1
UHC3	  S4	 disabled  pci:0000:00:12.2
USB4	  S4	 disabled  pci:0000:00:13.0
UHC5	  S4	 disabled  pci:0000:00:13.1
UHC6	  S4	 disabled  pci:0000:00:13.2
UHC7	  S4	 disabled  pci:0000:00:14.5

Here's another one, Gigabyte's GA-MA74GM-S2H,
which definitely wakes on network:

Device S-state Status Sysfs node

PCI0	  S5	 disabled  no-bus:pci0000:00
USB0	  S3	 disabled  pci:0000:00:12.0
USB1	  S3	 disabled  pci:0000:00:12.1
USB2	  S3	 disabled  pci:0000:00:12.2
USB3	  S3	 disabled  pci:0000:00:13.0
USB4	  S3	 disabled  pci:0000:00:13.1
USB5	  S3	 disabled  pci:0000:00:13.2
USB6	  S3	 disabled  pci:0000:00:14.5
SBAZ	  S4	 disabled  pci:0000:00:14.2
P2P	  S5	 disabled  pci:0000:00:14.4
PCE2	  S4	 disabled
PCE3	  S4	 disabled
PCE4	  S4	 disabled
PCE5	  S4	 disabled
PCE6	  S4	 disabled  pci:0000:00:06.0
PCE7	  S4	 disabled
PCE8	  S4	 disabled

hmm. Blaming BIOS, as usual? :)

But even if that's the case, why there's a difference between "just" power-off and power-off when suspending?

The kernel is 2.6.31 vanilla.

Thanks!

/mjt