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Created attachment 476313 [details] corrupt in yellow box(folders, subjects) Description of problem: While scrolling with mouse, evolution ui was corrupted. Version-Release number of selected component (if applicable): evolution-2.91.6-1.fc15 How reproducible: Steps to Reproduce: 1. Launch evolution 2. Scroll with mouse on evolution 3. Actual results: Expected results: Additional info: mutter-2.91.5-1.fc15.x86_64 gnome-shell-2.91.5-3.fc15.x86_64 gtk3-2.99.2-2.fc15.x86_64 glib2-2.27.93-1.fc15.x86_64
The left pane is a standard GtkTreeView widget inside a GtkScrolledWindow, which suggests this is a GTK+ or Cairo issue.
I suppose this is caused by the old pixman. The long message list requests canvas size larger than 32768 points, and the pixman gets crazy of it. You might be able scroll in the upper parts in the message list, though. The only way to fix this is to update pixman. I do not know if there is any available in rawhide, though, so please verify this and if there will be none, and compiling your own will help, then we can move this to pixman and request an update of it.
pixman version is 0.20.2-1.fc15 in rawhide. version 0.20.2 is latest stable version. After updating development snapshot 0.21.4 ( http://cairographics.org/releases/pixman-0.21.4.tar.gz ), the bug still happens.
Are you sure your gtk+ is built against this pixman? Otherwise it would be strange, though I'm using its git master, same as for cairo.
After updating gtk3-2.99.3-1.fc15.x86_64 in rawhide, this issue doesn't happen. Thanks!