Red Hat Bugzilla – Bug 584833
Input problems on Thinkpad T42
Last modified: 2010-11-24 16:43:12 EST
With the upgrade from 1.8.0-6 to 1.8.0-7, I suddenly started having my cursor jump around when trying to navigate with the Trackpoint on my T42. This made the desktop unusable. Downgrading made the problem go away.
My guess was that the problem was that some sort of suppression of events from the trackpad got lost, so the events were coming from me brushing against the trackpad or from dirt on the trackpad, but I didn't investigate long enough to conclusively say that was the probpem.
Do you use compiz? Does it work better if you disable it?
This was with normal metacity, both in gdm and logged into the session.
(I'd have trouble figuring out how compiz could cause something like this - compiz doesn't have any say in where the mouse cursor appears.)
I was thinking that compiz could somehow cause a very slow refresh of the screen which might seem like the cursor was jumping. But nevermind.
Same problem on Samsung NC10 netbook. Check out: https://admin.fedoraproject.org/updates/xorg-x11-drv-synaptics-1.2.2-3.fc13?_csrf_token=e2e11a7e9fadfa0f43a56541a7d69446b5e2159c - was pushed to stable yesterday but looks like it hasn't hit the mirror I'm using yet.
The following should serve as a workaround for now:
yum localinstall http://kojipkgs.fedoraproject.org/pack/xorg-x11-drv-synaptics/1.2.2/3.fc13/i686/xorg-x11-drv-synaptics-1.2.2-3.fc13.i686.rpm --nogpgcheck
...solved the mouse cursor jumping issue for me.
I'm guessing that the issue is caused by the X server using /etc/xorg.conf.d instead of /etc/X11/xorg.conf.d to store the configuration files - see bug 582468:
(In reply to comment #4)
> Same problem on Samsung NC10 netbook. Check out:
> - was pushed to stable yesterday but looks like it hasn't hit the mirror I'm
> using yet.
> The following should serve as a workaround for now:
> yum localinstall
> ...solved the mouse cursor jumping issue for me.
> I'm guessing that the issue is caused by the X server using /etc/xorg.conf.d
> instead of /etc/X11/xorg.conf.d to store the configuration files - see bug
Yeah, the result was that evdev was driving the touchpads which well ... it can't do very good ;)
The updated xorg-x11-drv-synaptics indeed fixes it.
This bug appears to have been reported against 'rawhide' during the Fedora 14 development cycle.
Changing version to '14'.
More information and reason for this action is here:
xorg-x11-drv-synaptics-1.3.0-1 in current, consensus seems to be that this is a fixed issue. If that is not the case, please feel free to re-open the bug. Thank you.