*** This bug is a duplicate of bug 1809407 *** https://bugs.launchpad.net/bugs/1809407
Just change your driver from proprietary to open source noveau driver. I also had the same problem but it is solved. It is a problem of nvidia driver.Enjoy -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1824916 Title: Wallpaper corruption after waking from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1824916/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs