Hi, it seems to be an upstream bug, as I can confirm this behavior with Gentoo Linux and xfce-4.10. I don't use jdownloader, so it is definitely not responsible for the small square on the top left of the screen.
In my case I sometimes see a small black square when I move from an empty virtual screen to another one with an open application like firefox. My background image is dark, as this square. My graphics-drivers are xf86-video-intel-2.21.15. Interestingly, this behavior occurs not only with the xfce4 built-in compositing feature activated, but also when I start "xcompmgr -cCfF -r7 -o.65 -l-10 -t-8 -D7 &" at the beginning of my xfce4-session. But the square does not always occur. When I stop xcompmgr or the xfce4 compositing feature and restart it again right after that, the square is always gone. My system: Linux 3.10.17-gentoo xcompmgr-1.1.6 xfce4-session-4.10.0-r1 Greetings Uwe -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
