6

Basically, I closed my laptop lid at night and normally it would go to sleep. But, in morning when I opened it, it didn't started at the login screen but on the page where I left it and was unresponsive. So, I again closed and opened the lid and this time it started normally.

After signing in, I was welcomed by a nearly transparent container in the right-half of my window.

  1. It doesn't covers the top activity bar.
  2. It doesn't interfere with any contents or clicks
  3. xprop it gives MUTTER GAURD WINDOW
  4. going to all apps hides it.

enter image description here

Notable: I had created a go to desktop icon using this https://ubuntuhandbook.org/index.php/2018/10/add-show-desktop-button-ubuntu-18-10-18-04/ a few days back and it works fine. I wonder if it is creating the problem

EDIT Looks like 'mutter gaurd window' was shown for anywhere on the desktop. So, the problem was like non-existent for xprop.

The problem was solved when I shrank a window by double clicking then dragged it all the way upwards the normally gives a glimpse of it getting maximised. And it removed that container too. I guess it could be an issue related to window resizing.

So, why is it happening? PS I haven't done a reboot but wanted to know about the issue

mr.loop
  • 227

2 Answers2

3

I faced the same problem but a transparent screen from left. I solved it by using: Window + Left mouse (moving) and it disappeared.

Giang Truong Do
  • 31
2

The problem was solved when I shrank a window by double clicking then dragged it all the way upwards the normally gives a glimpse of it getting maximised. And it removed that container too. I guess it could be an issue related to window resizing.

mr.loop
  • 227