I don't know what is wrong but there is a dead area in the middle of my screen.

I can't click nor scroll in that area and it frustrated me so much. This is the screen capture I took a moment ago. I marked the dead area on red.

How can I fix it?

I'm using Voyager GS distro.

I marked it red

  • 1
    Have you tried rebooting your machine?
    – Mokubai
    Mar 23, 2017 at 11:18
  • @Mokubai yup sometimes it don't show up but sometimes it is. i think there is program running in the background but it baffled me why sometimes the problem show up but sometime it dont. Mar 23, 2017 at 12:54

2 Answers 2


You most likely have an open application that occupies that area of screen (and turned invisible). Try end tasking some of your active programs and check each time when the anomaly disappears.

  • 4
    xklill might work here - run xkill from a cmd window and click on that area
    – Journeyman Geek
    Mar 23, 2017 at 9:05
  • Yes, that should be tested.
    – Overmind
    Mar 23, 2017 at 10:18
  • @Overmind the problem is idk which programs i should closed there is too much programs running on the task manager Mar 23, 2017 at 12:47
  • @JourneymanGeek um.. i used linux n the command is incorrect it said Mar 23, 2017 at 12:50
  • 1
    xkill? Seems standard on Linux
    – Journeyman Geek
    Mar 23, 2017 at 12:50

To add to @Overmind's answer:

You can run xprop to find out more about the application. Just run xprop in a terminal, and then click the area with your mouse. In my case, this outputs

WM_NAME(STRING) = "MySQL Workbench"

so I know which application to close.

Alternatively, run xkill as suggested by @JourneymanGeek. Note: this terminates the program immediately.

  • 1
    Thanks for the xprop tip. For me, it was zoom. Their linux client is a bit dodgy.
    – Jeff Ward
    Apr 3, 2021 at 19:24
  • what if they only show the window id? Mine is windowid # x60000
    – dtlam26
    Jun 30, 2022 at 6:51

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