Hello,
About a year ago, Chase Douglas suggested I post about this here. I've only
recently become annoyed enough to finally do so.
When I add a secondary monitor horizontally to my primary one, my synaptics
touchpad (on a Thinkpad W510) becomes much more sensitive horizontally than
vertically. If I add the secondary monitor vertically, it becomes more sensitive
vertically than horizontally. Others have reported the same issue on different
machines. Here are the relevant bug reports:
https://bugs.freedesktop.org/show_bug.cgi?id=31636
https://bugs.launchpad.net/xorg-driver-synaptics/+bug/726832
Surely this can't be a design feature, can it? No other input devices (external
mouse or trackpoint, both via evdev apparently) behave this way, and neither
does the touchpad in Windows. This essentially breaks the touchpad for me on a
multi-monitor setup. Fortunately, when plugged into an external monitor, there's
usually access to an external mouse, which is perhaps why this one has flown
under the radar for so long. This bug has been around for coming up to a year
and a half. Could someone maybe have a look at it?
Cheers,
Martin
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