Re: USB, Help, Keyboard being dropped

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On Fri, May 18, 2018 at 08:41:28AM +0200, Greg KH wrote:
> On Thu, May 17, 2018 at 01:43:35PM -0400, ant wrote:
> > 
> > Did I not say it right?
> > 
> > Or perhaps a kernel or some other issue?
> > 
> > 
> > =====
> > 
> > 
> > (no need to CC I'm subscribed to list),

  hi, thank you for replying,


... 
> What do you mean exactly by "dropped"?

  the keyboard stops working at various times.
i may be in the middle of typing and it no
longer shows anything happening, sometimes it 
will eventually reconnect and other times it 
will not (at which point i have to unplug it
and plug it back in).


>  The kernel log you posted
> doesn't show any USB devices going away, so it's a bit hard to know if
> the kernel really thought the device is gone, or the device just stopped
> working, right?

  i thought that the following lines showed the change
started coming from the kernel:

KERNEL[8256.344251] change
/devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6:1.0/0003:17F6:0830.000B/input/inpu
t27/input27::numlock (leds)

which after some moments eventually ends up with:
UDEV  [8256.414787] unbind   /devices/pci0000:00/0000:00:14.0/usb1/1-6 (usb)
UDEV  [8256.416250] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-6 (usb)
[ 8256.041205] ant kernel: usb 1-6: USB disconnect, device number 16   

  which to me looks like a USB device being disconnected?

  i'd be happy for any way to tell the kernel to not do
this as any kind of temporary|permanent workaround.  i don't
have any power keys on the keyboard.

  i tried reading up on X configuration and input and 
disabling things via X11, but i've not gotten very far
down that road.

  i also tried installing laptop power tools and 
turning things off via that but because this is a
desktop i don't think it made any difference, keyboard
still stops working at times.


> Does this keyboard work properly on other machines / operating systems?

  it worked with my previous machine with no issues,
but that machine is gone as of February.  i was also
running Debian testing and Debian stable (on a 2nd
partition) on that system.

  i have used Linus's stock kernel to boot from a
USB stick and the issue is there too (v4.17-rc3),
my connection isn't that fast so grabbing other
images isn't quick but if i can get them and boot
from a USB stick i'll do it if it helps.  i 
haven't compiled the lastest rc5 or tried that
yet.

  i didn't think you'd care too much about a report
from Debian stable, but i finally got that installed
and booting.  i can leave that running today while
i'm working on other things and see what the logs
say.


  ant
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