Version:           unspecified (using KDE 4.6.5) 
OS:                Linux

The log-out dialog tries to cover the contents of the desktop, but actually produces a lot of garbage pixels. In the non-composited version the dialog is only displayed partly, as can be seen in the screenshot.

In systemsettings no compositing effects related to this are enabled.

Two additional problems are just important, and I'll come with separate bug reports:

2. The log-out dialog does not seem to have keyboard focus. If I press enter or escape the key actually goes to the last active window.

3. This happens in a multiple display set-up. After the main display has been removed, that dialog is impossible to reach, because I cannot see it. I see two solutions for this: a) draw that dialog on all screens; b)the dialog should make a wild guess and draw itself on the window with the cursor.
Please don't dismiss this as invalid, as long as KDE and randr still have problems detecting and taking the right decision when display configuration changes.

Reproducible: Always

Steps to Reproduce:
Trigger the log-out dialog, with and without compositing.

Actual Results:  
Garbage pixels, dialog has no focus, dialog might be out of the visible area if a display has been removed.

Expected Results:  
A clean screen, dialog should have exclusive focus, dialog should be visible under all circumstances.