Version: (using KDE 4.2.2) OS: Linux Installed from: Debian testing/unstable Packages Depending on the chosen setup (no dualhead, no unify output), when there are two monitors and one of them is bigger, the smaller one will only show a part of the screen, which is perfectly fine. When the larger display is stopped, the resolution will come back to the smaller one, but the area in which the cursor can move remain the same. This cursor area should also be changed. Logging out (not X restart) solves the problem). I hope the explanation is clear enough, I'll make an illustration.
Created attachment 34107 [details] Illustration
I can confirm this behaviour using KDE 4.3.4. Having the cursor leave the monitor area takes time getting used to (if you are familiar with the problem) or is next to unusable for unknowing people.
*** Bug 259386 has been marked as a duplicate of this bug. ***
Thank you for your bug report or feature request. Unfortunately, we did not have a maintainer for the "krandr" components, which are used to manage displays and monitors in the KDE Workspaces. The "krandr" components has been superseded by "KScreen" in newer releases of the KDE Workspaces. It is compatible with all versions since 4.11, and is also used with Plasma 5. Please check with your distribution how to update to KScreen. If this issue or feature request is still applicable to KScreen version 1.0.5 or newer, please add a comment. We will then reassign this ticket to KScreen developers. If you are already using KScreen to manage displays or monitors, and found a different bug or need a specific feature, please create a new ticket for "KScreen" product in this bugzilla using this link: https://bugs.kde.org/enter_bug.cgi?product=KScreen (This is an automatic message from the KDE Bug Triaging Team)