Tested 4.2 rc5 and it fixes this bug. The laptop previously had 14.04 which did not have this bug. Also the 15.04 live CD did not have this bug. It appeared only after installing updates.
It seems that this bug is duplicate of #1472794. -- 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/1481442 Title: [HP Pavilion dv6-6145eo Entertainment Notebook PC] Laptop monitor turns off during boot Status in linux package in Ubuntu: Confirmed Bug description: When booting HP Pavilion dv6-6145eo with Ubuntu 15.04 the laptop monitor turns off in the middle of the boot. If I suspend and resume the computer (close and open the lid) when I hear the login sound the monitor turns back on and the computers works just fine. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-25-generic 3.19.0-25.26 ProcVersionSignature: Ubuntu 3.19.0-25.26-generic 3.19.8-ckt2 Uname: Linux 3.19.0-25-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: markus 1653 F.... pulseaudio /dev/snd/controlC0: markus 1653 F.... pulseaudio CurrentDesktop: Unity Date: Tue Aug 4 21:24:03 2015 HibernationDevice: RESUME=UUID=1496baa6-25ad-490c-8be1-371b62216282 InstallationDate: Installed on 2015-08-04 (0 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: Hewlett-Packard HP Pavilion dv6 Notebook PC ProcFB: 0 radeondrmfb 1 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-25-generic root=UUID=36500a23-b99a-4df0-9cd8-24126399d9d2 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-25-generic N/A linux-backports-modules-3.19.0-25-generic N/A linux-firmware 1.143.2 SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/13/2011 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: F.20 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 358D dmi.board.vendor: Hewlett-Packard dmi.board.version: 33.18 dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnHewlett-Packard:bvrF.20:bd07/13/2011:svnHewlett-Packard:pnHPPaviliondv6NotebookPC:pvr058F110000244610000620100:rvnHewlett-Packard:rn358D:rvr33.18:cvnHewlett-Packard:ct10:cvrChassisVersion: dmi.product.name: HP Pavilion dv6 Notebook PC dmi.product.version: 058F110000244610000620100 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1481442/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp

