Grainy display around dialog boxes in ubuntu

Question

I am running Ubuntu 16.04 LTS on a Dell Inspiron 15. It was working fine and there was no issue with the display or the laptop. But today morning when I turned on the laptop from sleep mode, it started to show a white grainy background around the dialog boxes and the corner buttons (close, minimise, and maximise buttons) are not visible. I can see some sort of change in the grain pattern in the position of the buttons when I place the mouse over the buttons. The buttons are working though.

Here is a screenshot,

The display around it is fine, as you can see.

Update:

Similar issue was noted in Ubuntu 18.04 in the same laptop. The same grainy details can be seen around the time that is displayed on the lock screen. But it was not a big deal, as it just disappears in a second or so.

score 1 · Accepted Answer · answered Apr 12 '17 at 17:56

1

I have found a partial fix to this problem. Run this code from the command line

setsid compiz --replace

However, I have to run this code everytime this issue comes up. I had tried to include this script in /lib/systemd/system-sleep/ but that did not solve the issue.

answered Apr 12 '17 at 17:56

Gautam Sreekumar

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This question was answered in ask ubuntu. http://askubuntu.com/questions/896768/grainy-background-around-dialog-box – Gautam Sreekumar Apr 12 '17 at 18:02
Also see this answer http://askubuntu.com/questions/896221/strange-artifacts-along-window-borders-after-waking-computer-from-sleep-mode – Gautam Sreekumar Apr 12 '17 at 18:19

Grainy display around dialog boxes in ubuntu

1 Answers1