windows maximize across all screens with multiple monitor

[David Hugh-Jones]

I just plugged in an external monitor to my laptop. After a bit of logging in and out, the System->Preferences->Screen resolution tool managed to set up the screens ok: both top and bottom panels are on my external monitor, which is placed above my laptop monitor.

However, now if I maximize a window, it is maximized across both monitors simultaneously, which is unintuitive and probably wrong.

Hmm, actually in the screenshot it looks kinda cool... but only because I'm using firefox on a long page. With e.g. nautilus it would be very odd. I don't think this should be the default behaviour after hitting the maximize button; instead the default should be to maximize to the current monitor only.

[Chris Halse Rogers (raof)]

Hm. That does look odd!

It would be useful to know what graphics card you're using. Could you attach:
/etc/X11/xorg.conf
/var/log/Xorg.0.log
and the output of running "xrandr --verbose" please?

Also, if you have compizconfig-settings-manager installed, could you check that "Detect outputs" is enabled in System->Preferences->CompizConfig Settings Manager->General Options->Display Settings.

[David Hugh-Jones (davidhughjones)]

Attached... however, the bug has now gone away. (Whenever I plug my
laptop back in to the dock with the screen attached, I have to reuse
System->Preferences->Screen Resolution, wait to see if X hangs or
crashes, logout, login, and the results are pretty random.)

[Chris Halse Rogers (raof)]

From the previous comment it sounds like this bug has been resolved. Please re-open it if you think this is wrong and can still reproduce this problem.