since I have ubuntu 12.04 installed (starting with kernel 3.2.0-23)
eGalaxy worked, at least the tool said so. however, there was a minor
problem: sometimes the mouse-driver would register a click from the
touchscreen, but wont release the button so that moving the cursor with
the touchpad would select text, in firefox. in the earlier ubuntu
software/kernel this was really bad since the touchscreen then would
ignore all further "clicks" untill I press the button on the touchpad,
now it can be solved with touchscreen only. now I compiled the newest
kernel 3.4.4 from kernel.org and this problem seems to be gone, or at
least it happens much more rarely.

there is another problem however, as someone mentioned above: the file-
manager that comes with ubuntu unity cannot be controlled by the
touchscreen. other programs don't seem to have a problem. likely it's
caused by a bug in xorg, as was said here. again in firefox the problem
manifests itself as an annoying pointer-move downwards and to the right.
i.e. I touch the touchscreen somewhere, and then I move the pointer with
the touchpad, and as soon as the touchpad changes pointer-position the
cursor will seemingly start out at a different position than the one I
touched on the touchscreen. this problem isn't fixed by any kernel I
have tested. in firefox it is merely annoying since also left-click with
touchpad will make the click at a completely different position than
expected. but I wont notice anything when I use either touchscreen or
touchpad exclusively, avoid switching to the other. in the filemanager
however the program reacts as if I'd randomly switch to touchpad as soon
as I touch the screen, till a recent ubgrade of xorg. in the new xorg
the filemanager will react to press and hold by selecting the item I
touched and it will scroll when I move my finger on the touch-screen.
after leaving my finger there a bit longer the right-click menu will
appear. sometimes the menu will undo my selection though and thereby
will be unrelated to the item. in whole, filemanager is somewhat useable
now with tablet-mode of my inspiron1090, especially in combination with
the newest upstream-kernel.

so in whole I would say there is a lot of improvement going on with the
eGalaxy driver, and there still is something to improve in the kernel-
driver before it can be called stable. but of course xorg probably must
be improved too...

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https://bugs.launchpad.net/bugs/913164

Title:
  REGRESSION: eGalaxis Touchscreen Driver does not work

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