Looks like dependency problems in the python libraries. But since first reporting, in the meanwhile I used Kubuntu Backports to upgrade to plasma 5.5.3, qt 5.5.1 and I am running kernel amd64 4.4.0-040400-generic from ubuntu kernel ppa.
I also tried newer xorg from xorg-edgers and oibaf. All of this changes nothing. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1509434 Title: Kubuntu panel, starter, desktop do not redraw on change using EGL in kwin Status in xorg package in Ubuntu: Incomplete Status in plasma-desktop package in Fedora: Unknown Bug description: After my upgrade from 15.04 to 15.10 certain Plasma elements don't redraw. This affects the task bar (in the panel), the starter and the desktop at least. So after starting an application it's not shown in the task bar. After adding a favourite it's not shown in the starter and after dropping a file on the desktop it's not shown. For the task bar I found a work around, by selecting the auto hide function. So each time I move to the bottom edge the task bar pops up, gets redrawn and shows the correct open applications. For the starter: after adding a favourite, click the starter icon (closes), then click again (opens with the change shown). For the desktop I could only logoff, then login. Prior to upgrading I had 15.04 with the Kubuntu Backports installed, and had not this issue. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1509434/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp