Janek Greskowiak, in order to allow additional upstream developers to examine the issue, at your earliest convenience, could you please test the latest upstream kernel available from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D ? Please keep in mind the following: 1) The one to test is at the very top line at the top of the page (not the daily folder). 2) The release names are irrelevant. 3) The folder time stamps aren't indicative of when the kernel actually was released upstream. 4) Install instructions are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds .
If testing on your main install would be inconvenient, one may: 1) Install Ubuntu to a different partition and then test this there. 2) Backup, or clone the primary install. If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description: kernel-fixed-upstream kernel-fixed-upstream-X.Y-rcZ Where X, and Y are the first two numbers of the kernel version, and Z is the release candidate number if it exists. If the mainline kernel does not fix the issue, please add the following tags: kernel-bug-exists-upstream kernel-bug-exists-upstream-X.Y-rcZ Please note, an error to install the kernel does not fit the criteria of kernel-bug-exists-upstream. Also, you don't need to apport-collect further unless specifically requested to do so. It is most helpful that after testing of the latest upstream kernel is complete, you mark this report Status Confirmed. Lastly, to keep this issue relevant to upstream, please continue to test the latest mainline kernel as it becomes available. Thank you for your help. ** Tags added: regression-update -- 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/1619939 Title: multi monitors - black flashes or black screen when the mouse cursor leaves a monitor Status in linux package in Ubuntu: Incomplete Bug description: I experience the following bug after updating Ubuntu 14.04. on a Dell Latitude Laptop for Hardware Enablement Stack some days ago: Dual Monitor Screen: When the mouse cursor leaves one of the screens, there is either : - no problem - the screen becomes black just below the position of the cursor and instantly comes back to normal. - the screen becomes entirely black with some random colored pixels flickering on the far left of the screen. I have to move the cursor to the black screen, otherwise it stays black. After the update my kernel version is 4.4.0-36-generic, and my Ubuntu is Ubuntu 14.04.5 LTS Thank you, Janek Greskowiak ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-4.4.0-36-generic 4.4.0-36.55~14.04.1 ProcVersionSignature: Ubuntu 4.4.0-36.55~14.04.1-generic 4.4.16 Uname: Linux 4.4.0-36-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.21 Architecture: amd64 CurrentDesktop: Unity Date: Sat Sep 3 19:03:09 2016 InstallationDate: Installed on 2016-02-27 (189 days ago) InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) SourcePackage: linux-lts-xenial UpgradeStatus: No upgrade log present (probably fresh install) --- ApportVersion: 2.14.1-0ubuntu3.21 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: janek 2059 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=53d29794-1a88-491c-a81d-a8ad51c9e77c InstallationDate: Installed on 2016-02-27 (189 days ago) InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) Lsusb: Bus 002 Device 003: ID 0a5c:5800 Broadcom Corp. BCM5880 Secure Applications Processor Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Dell Inc. Latitude E6510 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-36-generic root=UUID=d60baf6c-c479-452c-8f12-2b7a385cfce1 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.4.0-36.55~14.04.1-generic 4.4.16 RelatedPackageVersions: linux-restricted-modules-4.4.0-36-generic N/A linux-backports-modules-4.4.0-36-generic N/A linux-firmware 1.127.22 Tags: trusty Uname: Linux 4.4.0-36-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip fuse lpadmin plugdev sambashare sudo vboxusers _MarkForUpload: True dmi.bios.date: 08/10/2010 dmi.bios.vendor: Dell Inc. dmi.bios.version: A05 dmi.board.name: 02K3Y4 dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA05:bd08/10/2010:svnDellInc.:pnLatitudeE6510:pvr0001:rvnDellInc.:rn02K3Y4:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6510 dmi.product.version: 0001 dmi.sys.vendor: Dell Inc. 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