Ubuntu
linux package

  1. Bug #952080
  2. Comment #115

Comment 115 for bug 952080

Revision history for this message
In , mypersonalmailbox1 (mypersonalmailbox1-linux-kernel-bugs) wrote :

(In reply to comment #75)

Hi Octavio,

> fpgahardwareengineer, regarding the ASUS P5N32-E SLI motherboard, When you
> successuflly suspend the motherboard, do USB devices suspend as well? In
> other
> words, does USB behaves as if it were connected to which line, +5V or +5VSB?

As for ASUS P5N32-E SLI mainboard, if I press USB mouse buttons, nothing happens, but if I press a key on a USB keyboard, the system wakes up correctly.
If I unplug USB keyboard or mouse, that action will wake up the system.
This probably means that +5VSB is going into the USB ports, at least when the system is in ACPI S3 State.
Perhaps, ASUS has a way to switch back the USB power line to +5V when the system is in operation (pure speculation).
When I use the "sudo sh -c . . . " command from Terminal to disable ACPI wakeup, not only pressing the USB keyboard does not wake up the system anymore, but also unplugging the USB keyboard or mouse no longer wakes up the system.
I can now say that ASUS P5N32-E SLI mainboard behaves like ASUS P5N7A-VM mainboard when it comes to OHCI USB/ACPI S3 State resume.
I have one more ASUS/NVIDIA mainboard to go (A7N266-VM/AA), and I expect this one to behave like ASUS A7N8X-E Deluxe.

Regards,

fpgahardwareengineer