[PATCH] man: list the drivers that are ignored when hotplugging (#35209)

Vincent Lefevre vincent at vinc17.net
Wed Mar 16 01:58:56 PDT 2011

On 2011-03-16 09:14:10 +0100, Julien Cristau wrote:
> On Wed, Mar 16, 2011 at 12:51:00 +1000, Peter Hutterer wrote:
> > driver conflict. since hotplugging is enabled, the device will be picked
> > up once through the config, once through hotplugging. when it is picked up
> > through the config everything is fine and the log looks good.

However such conflicts are not documented. One could have thought
that the options were merged instead of being ignored.

> > the device is a touchpad so in your distro's default configurations it will
> > be picked up with the synaptics driver when hotplugging. that driver grabs
> > the event device, thus no events go through to the device you've configured.
> > 
> > remove the synaptics.conf from /etc/X11/xorg.conf.d and you should be fine.
> > 
> Or tell evdev to grab the device, as I said in that bug, and as in
> evdev(4) synopsis...

Unless this have changed uptream, under Debian, the evdev(4) synopsis
doesn't tell to grab the device:

       Section "InputDevice"
         Identifier "devname"
         Driver "evdev"
         Option "Device"   "devpath"
         Option "Emulate3Buttons"     "True"
         Option "Emulate3Timeout"     "50"
         Option "GrabDevice"     "False"

The synopsis should probable mention the InputClass directive instead.

Vincent Lefèvre <vincent at vinc17.net> - Web: <http://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / Arénaire project (LIP, ENS-Lyon)

More information about the xorg-devel mailing list