[gentoo-user] Powertop constantly tells me to enable USB suspend, but it is already enabled

[gentoo-user] Powertop constantly tells me to enable USB suspend, but it is already enabled

[Paul Hartman]

Hi,

As the subject line says, powertop constantly tells me my USB devices
(keyboard/mouse) are active 100% of the time and to enable USB
suspend, which I do, but it keeps telling me constantly. How can I
tell if:

A) USB suspend is actually on or not
B) powertop is doing anything when I press "U"

I've got USB Suspend/resume support in my kernel, and according to the
kernel docs the usbcore.usbsuspend default delay is 2 (powertop
suggests changing it to 1).

Powertop's refresh delay is 5 seconds.

Thanks,
Paul

Re: [gentoo-user] Powertop constantly tells me to enable USB suspend, but it is already enabled

[Eric Martin]

Paul Hartman wrote:
> Hi,
>
> As the subject line says, powertop constantly tells me my USB devices
> (keyboard/mouse) are active 100% of the time and to enable USB
> suspend, which I do, but it keeps telling me constantly. How can I
> tell if:
>
> A) USB suspend is actually on or not
> B) powertop is doing anything when I press "U"
>
> I've got USB Suspend/resume support in my kernel, and according to the
> kernel docs the usbcore.usbsuspend default delay is 2 (powertop
> suggests changing it to 1).
>
> Powertop's refresh delay is 5 seconds.
>
> Thanks,
> Paul
>
>   
Check for USB_SUSPEND in /proc/config.gz

Re: [gentoo-user] Powertop constantly tells me to enable USB suspend, but it is already enabled

[Paul Hartman]

On Tue, Jan 20, 2009 at 8:06 PM, Eric Martin <freak4uxxx@gmail.com> wrote:
> Paul Hartman wrote:
>> Hi,
>>
>> As the subject line says, powertop constantly tells me my USB devices
>> (keyboard/mouse) are active 100% of the time and to enable USB
>> suspend, which I do, but it keeps telling me constantly. How can I
>> tell if:
>>
>> A) USB suspend is actually on or not
>> B) powertop is doing anything when I press "U"
>>
>> I've got USB Suspend/resume support in my kernel, and according to the
>> kernel docs the usbcore.usbsuspend default delay is 2 (powertop
>> suggests changing it to 1).
>>
>> Powertop's refresh delay is 5 seconds.
>>
>> Thanks,
>> Paul
>>
>>
> Check for USB_SUSPEND in /proc/config.gz

I do not have a /proc/config.gz but i have this in /boot/config:

CONFIG_USB_SUSPEND=y

Re: [gentoo-user] Powertop constantly tells me to enable USB suspend, but it is already enabled

[Eric Martin]

[-- Attachment #1: Type: text/plain, Size: 1813 bytes --]

Paul Hartman wrote:
> On Tue, Jan 20, 2009 at 8:06 PM, Eric Martin <freak4uxxx@gmail.com> wrote:
>> Paul Hartman wrote:
>>> Hi,
>>>
>>> As the subject line says, powertop constantly tells me my USB devices
>>> (keyboard/mouse) are active 100% of the time and to enable USB
>>> suspend, which I do, but it keeps telling me constantly. How can I
>>> tell if:
>>>
>>> A) USB suspend is actually on or not
>>> B) powertop is doing anything when I press "U"
>>>
>>> I've got USB Suspend/resume support in my kernel, and according to the
>>> kernel docs the usbcore.usbsuspend default delay is 2 (powertop
>>> suggests changing it to 1).
>>>
>>> Powertop's refresh delay is 5 seconds.
>>>
>>> Thanks,
>>> Paul
>>>
>>>
>> Check for USB_SUSPEND in /proc/config.gz
> 
> I do not have a /proc/config.gz but i have this in /boot/config:
> 
> CONFIG_USB_SUSPEND=y
> 
Are you sure you're running a kernel with that configured?  Why not
enable kernel .config?  It's [CONFIG_IKCONFIG] General Setup -> Kernel
.config support.  Obviously it adds more to your kernel images but it
makes tracking down problems like this very easy.  I too have a usb
keyboard / mouse and I'm pretty sure powertop doesn't register 100% for
those interfaces...  Heck, unless you're 100% opposed to turning on
kernel .config support (or can't reboot the server), turn it on,
recompile, install, reboot and see if CONFIG_USB_SUSPEND is there, and
see what powertop says.

I was trying to chase down a similar problem (disabling kernel options)
when I was getting vmalloc() errors with xfs and I discovered that they
always weren't taking affect.  My guess was I rebooted before cache
could be written to disk.

HTH

-- 
Eric Martin
Key fingerprint = D1C4 086E DBB5 C18E 6FDA  B215 6A25 7174 A941 3B9F


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Re: [gentoo-user] Powertop constantly tells me to enable USB suspend, but it is already enabled

[Paul Hartman]

On Thu, Jan 22, 2009 at 7:58 AM, Eric Martin <freak4uxxx@gmail.com> wrote:
> Paul Hartman wrote:
>> On Tue, Jan 20, 2009 at 8:06 PM, Eric Martin <freak4uxxx@gmail.com> wrote:
>>> Paul Hartman wrote:
>>>> Hi,
>>>>
>>>> As the subject line says, powertop constantly tells me my USB devices
>>>> (keyboard/mouse) are active 100% of the time and to enable USB
>>>> suspend, which I do, but it keeps telling me constantly. How can I
>>>> tell if:
>>>>
>>>> A) USB suspend is actually on or not
>>>> B) powertop is doing anything when I press "U"
>>>>
>>>> I've got USB Suspend/resume support in my kernel, and according to the
>>>> kernel docs the usbcore.usbsuspend default delay is 2 (powertop
>>>> suggests changing it to 1).
>>>>
>>>> Powertop's refresh delay is 5 seconds.
>>>>
>>>> Thanks,
>>>> Paul
>>>>
>>>>
>>> Check for USB_SUSPEND in /proc/config.gz
>>
>> I do not have a /proc/config.gz but i have this in /boot/config:
>>
>> CONFIG_USB_SUSPEND=y
>>
> Are you sure you're running a kernel with that configured?  Why not
> enable kernel .config?  It's [CONFIG_IKCONFIG] General Setup -> Kernel
> .config support.  Obviously it adds more to your kernel images but it
> makes tracking down problems like this very easy.  I too have a usb
> keyboard / mouse and I'm pretty sure powertop doesn't register 100% for
> those interfaces...  Heck, unless you're 100% opposed to turning on
> kernel .config support (or can't reboot the server), turn it on,
> recompile, install, reboot and see if CONFIG_USB_SUSPEND is there, and
> see what powertop says.
>
> I was trying to chase down a similar problem (disabling kernel options)
> when I was getting vmalloc() errors with xfs and I discovered that they
> always weren't taking affect.  My guess was I rebooted before cache
> could be written to disk.

Hi,

I actually had it enabled in my kernel, but as a module, and I have
never used it before so I didn't even realize it was there. I had to
dig a little to find out that "modprobe configs" is what I needed to
turn it on. I have this section:

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
# CONFIG_USB_DEVICE_CLASS is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
CONFIG_USB_SUSPEND=y
# CONFIG_USB_OTG is not set
# CONFIG_USB_MON is not set
# CONFIG_USB_WUSB is not set
# CONFIG_USB_WUSB_CBAF is not set

So it appears I do have it properly configured, at least.

Is there any way to tell whether or not a device is suspended, or if
autosuspend is kicking in? I don't know what's it's supposed to do,
really. Does the fact that I'm using a desktop computer mean that
there's a chance USB suspend isn't even available?

Thanks,
Paul

Re: [gentoo-user] Powertop constantly tells me to enable USB suspend, but it is already enabled

[Eric Martin]

[-- Attachment #1: Type: text/plain, Size: 3148 bytes --]

Paul Hartman wrote:
> On Thu, Jan 22, 2009 at 7:58 AM, Eric Martin <freak4uxxx@gmail.com> wrote:
>> Paul Hartman wrote:
>>> On Tue, Jan 20, 2009 at 8:06 PM, Eric Martin <freak4uxxx@gmail.com> wrote:
>>>> Paul Hartman wrote:
>>>>> Hi,
>>>>>
>>>>> As the subject line says, powertop constantly tells me my USB devices
>>>>> (keyboard/mouse) are active 100% of the time and to enable USB
>>>>> suspend, which I do, but it keeps telling me constantly. How can I
>>>>> tell if:
>>>>>
>>>>> A) USB suspend is actually on or not
>>>>> B) powertop is doing anything when I press "U"
>>>>>

<snip>

>>>>>
>>>>>
>>>> Check for USB_SUSPEND in /proc/config.gz
>>> I do not have a /proc/config.gz but i have this in /boot/config:
>>>
>>> CONFIG_USB_SUSPEND=y
>>>
>> Are you sure you're running a kernel with that configured?  Why not
>> enable kernel .config?  It's [CONFIG_IKCONFIG] General Setup -> Kernel
>> .config support.  Obviously it adds more to your kernel images but it
>> makes tracking down problems like this very easy.  I too have a usb
>> keyboard / mouse and I'm pretty sure powertop doesn't register 100% for
>> those interfaces...  Heck, unless you're 100% opposed to turning on
>> kernel .config support (or can't reboot the server), turn it on,
>> recompile, install, reboot and see if CONFIG_USB_SUSPEND is there, and
>> see what powertop says.
>>
>> I was trying to chase down a similar problem (disabling kernel options)
>> when I was getting vmalloc() errors with xfs and I discovered that they
>> always weren't taking affect.  My guess was I rebooted before cache
>> could be written to disk.
> 
> Hi,
> 
> I actually had it enabled in my kernel, but as a module, and I have
> never used it before so I didn't even realize it was there. I had to
> dig a little to find out that "modprobe configs" is what I needed to
> turn it on. I have this section:
> 
> #
> # Miscellaneous USB options
> #
> CONFIG_USB_DEVICEFS=y
> # CONFIG_USB_DEVICE_CLASS is not set
> # CONFIG_USB_DYNAMIC_MINORS is not set
> CONFIG_USB_SUSPEND=y
> # CONFIG_USB_OTG is not set
> # CONFIG_USB_MON is not set
> # CONFIG_USB_WUSB is not set
> # CONFIG_USB_WUSB_CBAF is not set
> 
> So it appears I do have it properly configured, at least.
> 
> Is there any way to tell whether or not a device is suspended, or if
> autosuspend is kicking in? I don't know what's it's supposed to do,
> really. Does the fact that I'm using a desktop computer mean that
> there's a chance USB suspend isn't even available?

Ok, now I'm confused.  USB_SUSPEND can't be configured as a module, so I
have no idea what you're talking about.  I apparently don't have it
configured on this machine (shame on me) so I'm recompiling right now,
I'll reboot and let you know so I can help more.

  Again though, the only way I'm 100% sure *anything* is in my running
kernel is by checking /proc/config.gz.  Granted that's not even 100%
because there are plenty of times I just add modules and don't install
the new kernel.


-- 
Eric Martin
Key fingerprint = D1C4 086E DBB5 C18E 6FDA  B215 6A25 7174 A941 3B9F


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Re: [gentoo-user] Powertop constantly tells me to enable USB suspend, but it is already enabled

[Paul Hartman]

On Thu, Jan 22, 2009 at 10:10 AM, Eric Martin <freak4uxxx@gmail.com> wrote:
> Paul Hartman wrote:
>> On Thu, Jan 22, 2009 at 7:58 AM, Eric Martin <freak4uxxx@gmail.com> wrote:
>>> Paul Hartman wrote:
>>>> On Tue, Jan 20, 2009 at 8:06 PM, Eric Martin <freak4uxxx@gmail.com> wrote:
>>>>> Paul Hartman wrote:
>>>>>> Hi,
>>>>>>
>>>>>> As the subject line says, powertop constantly tells me my USB devices
>>>>>> (keyboard/mouse) are active 100% of the time and to enable USB
>>>>>> suspend, which I do, but it keeps telling me constantly. How can I
>>>>>> tell if:
>>>>>>
>>>>>> A) USB suspend is actually on or not
>>>>>> B) powertop is doing anything when I press "U"
>>>>>>
>
> <snip>
>
>>>>>>
>>>>>>
>>>>> Check for USB_SUSPEND in /proc/config.gz
>>>> I do not have a /proc/config.gz but i have this in /boot/config:
>>>>
>>>> CONFIG_USB_SUSPEND=y
>>>>
>>> Are you sure you're running a kernel with that configured?  Why not
>>> enable kernel .config?  It's [CONFIG_IKCONFIG] General Setup -> Kernel
>>> .config support.  Obviously it adds more to your kernel images but it
>>> makes tracking down problems like this very easy.  I too have a usb
>>> keyboard / mouse and I'm pretty sure powertop doesn't register 100% for
>>> those interfaces...  Heck, unless you're 100% opposed to turning on
>>> kernel .config support (or can't reboot the server), turn it on,
>>> recompile, install, reboot and see if CONFIG_USB_SUSPEND is there, and
>>> see what powertop says.
>>>
>>> I was trying to chase down a similar problem (disabling kernel options)
>>> when I was getting vmalloc() errors with xfs and I discovered that they
>>> always weren't taking affect.  My guess was I rebooted before cache
>>> could be written to disk.
>>
>> Hi,
>>
>> I actually had it enabled in my kernel, but as a module, and I have
>> never used it before so I didn't even realize it was there. I had to
>> dig a little to find out that "modprobe configs" is what I needed to
>> turn it on. I have this section:
>>
>> #
>> # Miscellaneous USB options
>> #
>> CONFIG_USB_DEVICEFS=y
>> # CONFIG_USB_DEVICE_CLASS is not set
>> # CONFIG_USB_DYNAMIC_MINORS is not set
>> CONFIG_USB_SUSPEND=y
>> # CONFIG_USB_OTG is not set
>> # CONFIG_USB_MON is not set
>> # CONFIG_USB_WUSB is not set
>> # CONFIG_USB_WUSB_CBAF is not set
>>
>> So it appears I do have it properly configured, at least.
>>
>> Is there any way to tell whether or not a device is suspended, or if
>> autosuspend is kicking in? I don't know what's it's supposed to do,
>> really. Does the fact that I'm using a desktop computer mean that
>> there's a chance USB suspend isn't even available?
>
> Ok, now I'm confused.  USB_SUSPEND can't be configured as a module, so I
> have no idea what you're talking about.  I apparently don't have it
> configured on this machine (shame on me) so I'm recompiling right now,
> I'll reboot and let you know so I can help more.
>
>  Again though, the only way I'm 100% sure *anything* is in my running
> kernel is by checking /proc/config.gz.  Granted that's not even 100%
> because there are plenty of times I just add modules and don't install
> the new kernel.

No no no, sorry for not being clearer. I had /proc/config.gz support
compiled as a module. Once I did "modprobe configs" it was available
for me to look at.