Created attachment 3945 [details] A screenshot. Issues are magnified. Hi. I want to report a small graphical issue that appears on the right or bottom edge of auto-hidden panels. There are two or three black pixels apparently for no reason that disturb the nice look of the desktop. There is no way and no particular panel configuration that can fix it. I can only set a 100% black color as panel background, obviously, covering that issue. Or I can set the panel no-focus opacity to 0% (but I prefer not doing it). I'm attaching a sample screenshot.
I doubt such random artefacts are caused by the panel, but rather glitches in the drawing backend (video driver, cairo, gtk).
It appens on three different machines (with an old Nvidia, a brand new ATI and a Oracle virtual machine), so I doubt it's a video driver issue...
This is also discussed in Launchpad, bug #880504: https://bugs.launchpad.net/ubuntu/+source/xfce4-panel/+bug/880504
I can't reproduce this on Xfce 4.10, Fedora 17 (from unofficial repo).
I'm closing as RESOLVED-INVALID because I'm not experiencing this bug anymore from a long time.