I've tested kernel 3.16-rc7 from mainline, with the same results. Another thing I've tested, is disabling acpi wakeups for usb related devices: If I disable wakeup for ALL usb related devices (in my case EHC1, EHC2, XHC) suspend works correctly. Any other combination (e.g. disable only XHC and leave EHCx enabled) prevents suspending.
Attached is the dmesg output of a successful suspend/resume using this workaround. /proc/acpi/wakeup for successful suspend looks in my case: $ cat /proc/acpi/wakeup Device S-state Status Sysfs node UAR1 S4 *disabled pnp:00:0b RP01 S4 *disabled pci:0000:00:1c.0 PXSX S4 *disabled RP03 S4 *disabled pci:0000:00:1c.2 PXSX S4 *enabled pci:0000:03:00.0 GLAN S4 *disabled EHC1 S4 *disabled pci:0000:00:1d.0 EHC2 S4 *disabled pci:0000:00:1a.0 XHC S4 *disabled pci:0000:00:14.0 HDEF S4 *disabled pci:0000:00:1b.0 PEG0 S4 *disabled pci:0000:00:01.0 PEGP S4 *disabled PEG1 S4 *disabled PEG2 S4 *disabled ** Attachment added: "dmesg_acpi_disabled.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1349879/+attachment/4167943/+files/dmesg_acpi_disabled.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1349879 Title: powering off an usb3 device causes kernel to resume immediately after suspend Status in “linux” package in Ubuntu: Incomplete Bug description: After powering off an usb3 disk (e.g. udisksctl power-off -b /dev/sdc) the system immediately resumes after suspend. This does not happen, if I umount the device and disconnect it. Usb devices < 3.0 seem not to be affected. How to reproduce: 1) plug an usb3 device to an usb3 port and mount it 2) umount it 3) power it off: udisksctl power-off -b /dev/sdX 4) suspend: (e.g. echo mem > /sys/power/state) result: system suspends and immediately resumes Package: udisks2 (2.1.3-1) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1349879/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
