Confirm the bug with the dafault Xubuntu theme.
$ env GTK_THEME=Abiword
solves the problem, no more flickering
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-power-manager in Ubuntu.
Closing laptop lid should not blank external monitor
Status in gnome-power-manager package in Ubuntu:
I'm using Precise Pangolin installed from scratch, with the latest
txelu@txelu-acer:~$ lsb_release -rd
Description: Ubuntu 12.04 LTS
My problem is that I have my laptop connected to an external monitor, and if
I started Ubuntu with the lid open I can't close, because not only the laptop
screen goes blank, but also the external monitor.
As a curious detail if I close the lid right after switching on the laptop,
before Ubuntu starts up, it works as expected.
Of course, I have set the Energy configuration to do nothing on closing the
lid, and I agree that the laptop screen in that situation should go black, but
not the external screen.
There is a similar bug filled against previous versions of Ubuntu (#416236)
that was considered a regression, but in that case there was a workaround using
gconf-editor to manually edit the settings for the gnome-power-manager, but
there is no such a entry now in 12.04.
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