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On 2018-01-21T14:02:27+00:00 Sworddragon wrote:

On locking the screen with XScreenSaver I noticed that a popup window
from a chat was able to show up and thus leaking private information. On
reporting this against XScreenSaver it seems that the X-Server does not
provide the ability to uniquely claim the top drawing area in a way that
all other applications can't draw on top of it anymore to counter such
issues.

But similar to bug #69298 comment #1 it could also become an issue if
applications begin to uniquely claim the top drawing area in case this
is unwanted by the user (for example a fullscreen game could do this and
more or less unintentionally preventing the user to add his custom
overlays). Eventually this needs also to be bind on higher permissions
so that this can be configured.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/xscreensaver/+bug/1744459/comments/2

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On 2018-08-10T19:55:24+00:00 Gitlab-migration wrote:

-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has
been closed from further activity.

You can subscribe and participate further through the new bug through
this link to our GitLab instance:
https://gitlab.freedesktop.org/xorg/proto/xorgproto/issues/8.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/xscreensaver/+bug/1744459/comments/4


** Changed in: xorg-server
   Importance: Unknown => Wishlist

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Title:
  xscreensaver does not provide absolute visual protection

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