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Everything works, but there is an anomaly which started a few weeks ago. An area which should display part of the wallpaper is all-white instead.

It is a small area, approx 0.25" tall and 3" wide, just below the header bar and just to the right of the Unity menu. It is only on monitor #1. It is only on workspace 1, not on the other 3 workspaces (ctrl-alt-right, it is not there). (I have 2x2 workspaces.)

If I click the background (the wallpaper image) the header bar displays "Ubuntu Desktop" at the left, but if I click the white area, those words disappear, as if it were a program with a GUI. There is no other response when I click or right-click that area.

If I use System Settings / Display and swap the monitors' positions, and click "Apply", everything redraws without the white area. Then if I revert to the original configuration, the white area remains gone!

So clearly, this isn't crucial, but maybe an investigation will be instructive.

I run dual monitors of different sizes with Unity under Ubuntu 14.04. (#1 is 1920x1080, #2 is 1600x1200). The PC is a Dell Optiplex 755. lspci shows the graphics card is "NVIDIA Corporation GT218 [GeForce 310] (rev a2)". I have not installed graphics drivers other than the default. (This setup is affected by the UI freeze that can be avoided by de-selecting "Transparency" in the view options in LibreOffice.)

ElHombre55
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1 Answers1

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Take a screenshot of your entire desktop (using gnome-screenshot or the Print Screen key).

This is the image you just uploaded:
your screenshot

As you can see, there's a dialog window sitting in the top left desktop corner, so that most of it are outside your visible area.

You can move the window back into the visible area by holding the Alt key and then dragging the window using the mouse while holding the left mouse button. By holding the Alt key, it is irrelevant on which part of the window you click, you can grab it anywhere, not only at the title bar.

Byte Commander
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