https://bugzilla.kernel.org/show_bug.cgi?id=47991





--- Comment #25 from fpgahardwareengineer <mypersonalmailb...@mail.com>  
2012-10-26 08:47:25 ---
(In reply to comment #22)

Hi Tianyu,

Actually, I just tried,

$ sudo sh -c "echo USB > /proc/acpi/wakeup"
$ sudo sh -c "echo USB2 > /proc/acpi/wakeup"
$ sudo sh -c "echo USB3 > /proc/acpi/wakeup"

Now displaying /proc/acpi/wakeup,

$ cat /proc/acpi/wakeup

I will get,

Device    S-state      Status   Sysfs node
UAR1      S4    *disabled  pnp:00:08
PS2M      S4    *disabled  pnp:00:0c
EUSB      S3    *disabled  pci:0000:00:03.3
USB      S3    *disabled  pci:0000:00:03.0
USB2      S3    *disabled  pci:0000:00:03.1
USB3      S3    *disabled  pci:0000:00:03.2
AC97      S4    *disabled  pci:0000:00:02.7
MC97      S4    *disabled
PCI1      S4    *disabled
PCI2      S4    *disabled
PCI3      S4    *disabled
MAC      S4    *disabled  pci:0000:00:04.0

Now EUSB, USB, USB2, and USB3 are all wakeup disabled.
I already set up standby mode to be ACPI S3 State only in ASUS P4S8X-MX's BIOS
setup.
I put the computer into standby.
Finally, the computer will go into standby without coming out, and noisy fans
go off!!!
I live in a apartment so ACPI S3 State functionality is really critical not to
mention I don't like wasting electricity (this costs money).
Thanks Tianyu for helping me out on this issue.
However, I still have some concerns about this method used here, but I will
discuss this and when fixes will be committed for SiS chipset-based mainboards
tomorrow.
Now I can put this computer into ACPI S3 State!!!
I am really going to bed now.

Regards,

fpgahardwareengineer 


> (In reply to comment #21)
> > hi:
> >     Please disable all usb device wakeup in the /proc/acpi/wakeup and try
> > again.
> > 
> > Device    S-state      Status   Sysfs node
> > UAR1      S4    *disabled  pnp:00:08
> > PS2M      S4    *disabled  pnp:00:0c
> > EUSB      S3    *enabled   pci:0000:00:03.3
> > USB      S3    *enabled   pci:0000:00:03.0
> > USB2      S3    *enabled   pci:0000:00:03.1
> > USB3      S3    *enabled   pci:0000:00:03.2
> > AC97      S4    *disabled  pci:0000:00:02.7
> > MC97      S4    *disabled
> > PCI1      S4    *disabled
> > PCI2      S4    *disabled
> > PCI3      S4    *disabled
> > MAC      S4    *disabled  pci:0000:00:04.0
> > 
> > e.g to disable EUSB wakeup, run "echo EUSB > /proc/acpi/wakeup"
> 
> Hi Tianyu,
> 
> Okay, when I tried, 
> 
> echo EUSB > /proc/acpi/wakeup
> 
> That statement in of itself didn't work, but when I typed in, 
> 
> sudo sh -c "echo EUSB > /proc/acpi/wakeup"
> 
> Sorry, I don't have much experience with Unix so please note that.
> I had to look around to find an example similar to what I was trying to do.
>     Now with, 
> 
> cat /proc/acpi/wakeup
> 
> I get, 
> 
> Device    S-state      Status   Sysfs node
> UAR1      S4    *disabled  pnp:00:08
> PS2M      S4    *disabled  pnp:00:0c
> EUSB      S3    *disabled  pci:0000:00:03.3
> USB      S3    *enabled   pci:0000:00:03.0
> USB2      S3    *enabled   pci:0000:00:03.1
> USB3      S3    *enabled   pci:0000:00:03.2
> AC97      S4    *disabled  pci:0000:00:02.7
> MC97      S4    *disabled
> PCI1      S4    *disabled
> PCI2      S4    *disabled
> PCI3      S4    *disabled
> MAC      S4    *disabled  pci:0000:00:04.0
> 
> It looks like EUSB is disabled.
> However, when I tried the standby, it still has the buggy behavior of waking 
> up
> out of ACPI S3 State immediately even if I don't touch the USB keyboard or
> mouse.
> That's all I can do right now.
> I am going to bed.
> 
> Regards,
> 
> fpgahardwareengineer

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