Taking a look at this, I see it on my tegra3. I've eliminated: #1 Application switching (this seems okay with mir_demo_server_shell)
#2 logcat messages about: E/hwcomposer( 6696): Failed to set DIDIM level E/hwcomposer( 6696): /sys/class/graphics/fb0/device/smartdimmer/enable: open failed, errno = 13 these don't really seem to affect anything #3 Display loop hangs During the flicker/static image, the display loop is still updating in response to touch events. The most likely cause is something is going awry with screenshotting on this device. The problem happens around the time unity8 would take a screenshot, and I see messages like: file:///usr/lib/arm-linux-gnueabihf/qt5/imports/Unity-Mir/Unity/Application/ApplicationImage.qml:37:5: QML QQuickImage: Failed to get image from provider: image://screenshot/ubuntu-system-settings ** Changed in: mir Assignee: (unassigned) => Kevin DuBois (kdub) ** Changed in: mir Status: Triaged => In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1238695 Title: unity8 display flickers and stops responding on Nexus 7 (grouper) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1238695/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs