On Thu, 19 Jan 2012, Konstantin Svist wrote:
> Machine: Foxconn nt-330i
> IR receiver: 073a:2230
> OS: Fedora 16 x64
> Kernel: 3.1.9
> IR dongle: 073a:2230
>
> When trying to suspend, if IR dongle is plugged in, system freezes on VT
> with blinking cursor.
> The IR dongle registers itself as HID device (keyboard+mouse, I believe)
>
> I've turned off "quiet" and "rhgb" in grub and added no_console_suspend
> and got the following data on console:
>
> PM: Syncing filesystems ... done.
> Freezing user space processes ... (elapsed 0.01 seconds) done.
> Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done.
> sd 0:0:0:0: [sda] Synchronizing SCSI cache
> sd 0:0:0:0: [sda] Stopping disk
> ohci_hcd 0000:00:06.0: PCI INT A disabled
> pci_pm_suspend(): hcd_pci_suspend+0x0/0x30 returns -16
> pm_op(): pci_pm_suspend+0x0/0x130 returns -16
> PM: Device 0000:00:04.0: failed to suspend async: error -16
> ehci_hcd 0000:00:06.1: PCI INT B disabled
> pci_pm_suspend(): hcd_pci_suspend+0x0/0x30 returns -16
> pm_op(): pci_pm_suspend+0x0/0x130 returns -16
> PM: Device 0000:00:04.1 failed to suspend async: error -16
These -16 errors indicate that the USB controllers failed to suspend
because they received wakeup requests. You should take a look at the
wakeup settings for the various USB devices ("grep .
/sys/bus/usb/devices/*/power/wakeup") and check whether they are
appropriate. In particular, you might want to disable wakeup for the
IR dongle.
> snd_hda_intel 0000:00:08.0: PCI INT A disabled
> snd_hda_intel 0000:00:08.0: power state changed by ACPI to D3
>
>
> I was able to both suspend and resume from my laptop (same OS/kernel,
> but x86)
>
> Is there anything that can be done to fix this?
Failure to suspend when there is a wakeup pending is normal. But it
should not cause your system to freeze. Something else must be going
wrong.
You might try building a kernel with CONFIG_DEBUG_DRIVER and
CONFIG_USB_DEBUG enabled, to see what they show.
Alan Stern
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