compiz team mailing list archive

[Rich Wales <richw@xxxxxxxxx>]

Public bug reported:

Ubuntu 19.10, gdm3 3.34.1-1ubuntu1, cinnamon 4.0.10-2, cinnamon-
screensaver 4.0.3-1, nvidia-driver 435.21-0ubuntu2.

I have a TV set connected to my computer as a second monitor (for
displaying YouTube videos, etc.).

When I turn off both my main monitor and the TV for the night, and turn
them back on in the morning, I often find that the windows I had left
open on the main monitor (email, browser, xterm, etc.) have moved from
the main monitor to the TV and need to be moved back individually to the
main monitor (via the "move to the other monitor" function on the
taskbar icons).

This doesn't always happen -- sometimes the windows show up on the main
monitor where I left them the night before, and sometimes not.  Maybe
50-50, one way or the other.

The main monitor is configured (in the Display settings) as the primary
monitor, and the taskbar panel remains on the main monitor -- and when I
wake up the screen saver to unlock it, the password dialogue always
shows up on the main monitor -- but the windows may end up on either
device after I've unlocked.

It doesn't appear to make any difference what order I turn the monitor
and the TV off/on.  In particular, I've conscientiously turned off the
TV before locking the screen and turning off the monitor, and then
turned on the monitor and unlocked the screen before turning the TV back
on, but the windows frequently still end up on the TV instead of the
main monitor.

I would like to somehow flag the windows so that they will stay put on
my main monitor when I turn things off at night and turn them back on in
the morning -- or, even better, I would like the windows to remain
associated with the same device and not move around on their own.

** Affects: compiz (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1854589

Title:
  Windows move to different monitor when multiple monitors turned off
  and back on

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