After more testing I can say that also the same screen on which I am scrolling with the scroll bars can go black.
When the mouse switches between screens, I get a flickering in ~50% of tries. Please note that I'm using Kernel 4.4.0-28, which is newer than 4.4.0-24 which contains a fix for a similar issue via https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554613 Processor generation is Westmere in my case. lshw output for my graphics adapter (Intel® HD Graphics, on-chip via core i5 M520 *-display Beschreibung: VGA compatible controller Produkt: Core Processor Integrated Graphics Controller Hersteller: Intel Corporation Physische ID: 2 Bus-Informationen: pci@0000:00:02.0 Version: 02 Breite: 64 bits Takt: 33MHz Fähigkeiten: msi pm vga_controller bus_master cap_list rom Konfiguration: driver=i915 latency=0 Ressourcen: irq:25 memory:f0000000-f03fffff memory:e0000000-efffffff ioport:8080(Größe=8) http://ark.intel.com/de/products/47341/Intel-Core-i5-520M-Processor-3M-Cache-2_40-GHz https://en.wikipedia.org/wiki/List_of_Intel_Core_i5_microprocessors -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1553503 Title: multi monitors - black flashes or black screen when the mouse cursor leaves a monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553503/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
