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I sometimes connect my laptop to an external monitor with an hdmi cable, and when I later unplug the cable, it causes a problem with the graphical theme in xubuntu (14.04). The window panes, panel, buttons etc look ugly, and I am unable to change the theme by going to Settings Manager -> Appearance -> Style (I mean the style is on Greybird, as it should be, but it doesn't change when I click on different styles). This only seems to happen sometimes after I unplug the hdmi cable (not every time).
Screenshot of ugly appearance
Screenshot of normal appearance
The only way I can fix it is to log out and back in again, after which the appearance is back to normal. I assume something is crashing (gtk?). Can anyone explain what might cause this, or how I could track down the cause?
I experience this on 14.10 when I also plug in the HDMI cable, not just unplug it.
ps: Thanks for deleting my "answer" @Mokubai, I was going to do that this morning after I realized it should have been a comment. – jc00ke – 2014-12-03T16:51:36.130