Acecad tablet does not work correctly after screen resize

[maturin]

Binary package hint: xserver-xorg-input-acecad

Changing the resolution of the screen causes the tablet to exhibit strange behavior. Using a graphics program (e.g., gpaint or gimp) as an illustration: when the pen is set down (i.e. clicked), the pointer jumps and a line is drawn from the original point where the pen was set down (indicated by the mouse/pen cursor before "clicking" with the pen) to the new point (where the pointer jumps to after "clicking" with the pen). Obviously this makes "writing" (or drawing, for that matter) on the tablet useless.

I've done some initial investigation and have discovered two things:

1) These "lines" get longer the lower or higher I set the resolution. This seems to indicate to me that something in the ACECAD tablet driver is not picking up the new resolution (at least for pen clicks). It seems "stuck" at the original resolution. Resetting to the original resolution restores correct function. This is true with or without an external monitor attached.

2) If I have an external screen plugged in when starting X, it will work correctly at whatever is the highest resolution supported by both the laptop screen and the external screen (e.g., 1024 x 768, or whatever). Trying to change the resolution to either a lower commonly supported resolution or a higher resolution supported, say, on the external screen only, results in the same problem.

This is probably not a real urgent issue, but it's not ideal behavior. It'd be nice to have the flexibility to adapt to whatever the best that any external monitor/projector can do. Incidentally, being able to change the screen resolution is almost a requirement in a lecture setting when using an external projector.

Some details: Running Xubuntu 10.04, tried this on two different computers with the same result. I can send the relevant lines of xorg.conf if it would be helpful (I did have to manually edit xorg.conf to get it working to begin with).

[Charlie Kravetz (cjkgeek)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please run the command 'apport-collect 581951' which will attach necessary information for debugging this as an Xorg problem. Thanks in advance.

[Bryce Harrington (bryce)]

We're closing this bug since it is has been some time with no response from the original reporter. However, if the issue still exists please feel free to reopen with the requested information. Also, if you could, please test against the latest development version of Ubuntu, since this confirms the bug is one we may be able to pass upstream for help.