Dear Christopher, thank you for your help. I can try this out. However, it presumably will take me a several weeks, since I have to clone the primary install first, as I am not going to risk that my only work computer becomes unusable. To do so, I have to read and learn how to do the cloning and then how to update to what you call an upstream kernel. All this is quite new to me.
Kind regards, Janek -- 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1619939/+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
