Re: X loses wireless input devices

Yan Seiner <yan@xxxxxxxxxx> · Mon, 11 Jun 2012 20:02:14 -0700

Peter Hutterer wrote:

On Mon, Jun 11, 2012 at 06:02:48PM -0700, Yan Seiner wrote:

Peter Hutterer wrote:

On Sat, Jun 09, 2012 at 07:45:53AM -0700, Yan Seiner wrote:

I have a multiseat setup where 2 of the seats use wireless mice and
keyboards.  After some random time measured in hours/days, those two
seats "lose" the input devices.  They become non-responsive.  The
LEDs on the hardware light up so I know the mice and keyboards are
awake and sending signals, but the X session itself does not
respond.  There is nothing interesting in the log files.  the one
seat with wired devices is fine.

If I kill that X client and let kdm restart it, it will work fine
for a while.  What information can I provide to help diagnose this?

you've disabled hotplugging, so if the device disappears at the kernel level
at any point in time, it will not come back until you've restarted the
server (VT switch should do too, btw). that is my suspicion here though that
should usually print read errors to the logs. there isn't really much you
can do about this, the old device model doesn't really lend itself for
hotplugging.

By hotplugging you mean setting Option "AutoAddDevices" "true"?  If
I do that, every input device gets assigned to every seat, so that
keyboard attached to seat 1 also shows up on seats 2 and 3, and
every mouse moves every cursor.

Is there any way to limit the pool of "AutoAddDevices" so that it
works correctly with multi-seat?

1.12 has the ID_SEAT support, so if you set that property through udev the
server only adds the matching ones. You'd have to then start the X server
with -seat, see the commit message to
159b03e13760920274b573a2bccdbf6a79f059e7 for some detail.

Awesome!  I'll look into it when I get the chance.

That sounds like the solution I need.  Let me read up on it and I may 

come back with more Qs.  :-)

--
Help us raise money for my kids' swim team!

http://www.facebook.com/RiverRoadKids4Kids

_______________________________________________
xorg@xxxxxxxxxxx: X.Org support
Archives: http://lists.freedesktop.org/archives/xorg
Info: http://lists.x.org/mailman/listinfo/xorg
Your subscription address: list-xorg@xxxxxxxxxxx