[HP Pavilion dv6-6145eo Entertainment Notebook PC] Laptop monitor turns off during boot

[Markus Ilmola]

When booting HP Pavilion dv6-6145eo with Ubuntu 15.04 the laptop monitor turns off in the middle of the boot.

WORKAROUND: Changing in /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT from:
quiet splash

to:
quiet

WORKAROUND: 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

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.2 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.2-rc5-unstable/

[Markus Ilmola (markus-ilmola)]

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.

[penalvch (penalvch)]

Markus Ilmola, could you please test http://cdimage.ubuntu.com/daily-live/current/ and advise to the results?

[Markus Ilmola (markus-ilmola)]

Tested with the daily image (Ubuntu 15.10 with kernel 4.2.0-7-generic) and the bug still exists.
This is odd since installing 4.2 kernel to 15.04 fixed this bug.

The bug also does not appear when booting from a live USB -stick only when installing to the hard drive.

I still think that this bug is duplicate of #1472794.

[penalvch (penalvch)]

Markus Ilmola, this would appear a downstream issue, given this is reproducible in Ubuntu kernels but not upstream ones.

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 15.10 (wily) reached end-of-life on July 28, 2016.
Ubuntu 15.04 (vivid) reached end-of-life on February 4, 2016.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in.

[Markus Ilmola (markus-ilmola)]

Tested Ubuntu 20.04 (kernel 5.4.0-52-generic) with the old HP Pavilion dv6 laptop and the bug seems to still exist.

Disabling the Plymouth boot screen fixes this bug (changing GRUB_CMDLINE_LINUX_DEFAULT from "quiet splash" to "quiet" in /etc/default/grub).

Also closing and opening the laptop lid after boot turns the display back on.