Yes, it started after upgrading to the current kernel. I will try to use the upstream kernel and I will try to create a bootable USB-stick with a fresh install. I hope, I have time to make the tests during this week.
Kind regards Reiner -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1628506 Title: Dual monitor - screen flashes and turns black on mouse movement and keyboard input Status in linux package in Ubuntu: Incomplete Bug description: This bug might be related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553503 However, there are minor differences. The dual monitor support worked with Ubuntu 16.04 This affects Ubuntu 16.10. - Kernel Linux 4.8.0-17-generic - VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06) - CPU: Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz The issue manifests in multiple ways: a) When moving the mouse from one screen to another, on the leaving screen an area in the upper left corner approx. 6 by 6 cm (on an 20" screen) flashes (dark). b) In case the mouse is on the left screen - I move it to the right (the screen flashes) - I select a text editor component (the screen flashes or the screen turns black for at least a second) - I type text (the screen flashes once or the screen turns black for at least a second) I tested this behavior with Ubuntu's Unity desktop and gnome-shell. It does not appear when switching between screens on the login screen. However ,ti does appear in case I use the switch user to get another login screen. --- ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: reiner 7701 F.... pulseaudio DistroRelease: Ubuntu 16.10 HibernationDevice: RESUME=UUID=400e238e-4dcd-443f-a42a-13d2056d1158 InstallationDate: Installed on 2016-05-31 (119 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) IwConfig: docker0 no wireless extensions. lo no wireless extensions. enp3s0 no wireless extensions. MachineType: System manufacturer System Product Name Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-17-generic.efi.signed root=UUID=97043ee3-cff3-41af-81bc-948bebf57198 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.8.0-17.19-generic 4.8.0-rc7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.8.0-17-generic N/A linux-backports-modules-4.8.0-17-generic N/A linux-firmware 1.161 RfKill: Tags: yakkety Uname: Linux 4.8.0-17-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 12/08/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0702 dmi.board.asset.tag: Default string dmi.board.name: B150M-C dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0702:bd12/08/2015:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnB150M-C:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1628506/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
