8086:0166 [ThinkPad X1 Carbon] Screen brightness is maximum upon fresh boot

[Anmar Oueja]

Hello,

Trouble: Everytime I restart or cold boot my Thinkpad X1 laptop, my screen brightness is set to maximum.

Expected Behaviour: Brighteness setting is retained between reboots

My laptop uses UEFI.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: linux-image-3.11.0-4-generic 3.11.0-4.9
ProcVersionSignature: Ubuntu 3.11.0-4.9-generic 3.11.0-rc7
Uname: Linux 3.11.0-4-generic x86_64
ApportVersion: 2.12.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: anmar 1798 F.... pulseaudio
Date: Fri Sep 6 11:20:05 2013
HibernationDevice: RESUME=UUID=2e39ee55-2a87-4298-a2d0-1c8ef5de5a96
InstallationDate: Installed on 2013-08-09 (27 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130809)
MachineType: LENOVO 3443CTO
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-4-generic.efi.signed root=UUID=1784df7c-8b5f-4550-84f2-13e73c2915fe ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.11.0-4-generic N/A
 linux-backports-modules-3.11.0-4-generic N/A
 linux-firmware 1.113
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/29/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: G6ET96WW (2.56 )
dmi.board.asset.tag: Not Available
dmi.board.name: 3443CTO
dmi.board.vendor: LENOVO
dmi.board.version: Win8 STD DPK TPG
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrG6ET96WW(2.56):bd04/29/2013:svnLENOVO:pn3443CTO:pvrThinkPadX1Carbon:rvnLENOVO:rn3443CTO:rvrWin8STDDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 3443CTO
dmi.product.version: ThinkPad X1 Carbon
dmi.sys.vendor: LENOVO

[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 kernel version where you were not having this particular problem? This will help determine if the problem you are seeing is the result of the introduction of a regression, and when this regression was introduced. If this is a regression, we can perform a kernel bisect to identify the commit that introduced the problem.

[Anmar Oueja (anmar)]

This didn't used to happen. I believe it started with the 3.11 kernel
since there is new code in that area. I will try installing 3.10 and
some early 3.11 RCs and see where I land. I know where to get the
earlier kernel packages (kernel team PPA) but how do I interrupt the
boot process to tell ubuntu to run an older release. Everything is
masked by the "Ubuntu" logo boot now.

On 6 September 2013 11:47, Joseph Salisbury
<email address hidden> wrote:
> Did this issue start happening after an update/upgrade? Was there a
> kernel version where you were not having this particular problem? This
> will help determine if the problem you are seeing is the result of the
> introduction of a regression, and when this regression was introduced.
> If this is a regression, we can perform a kernel bisect to identify the
> commit that introduced the problem.
>
> ** Changed in: linux (Ubuntu)
> Importance: Undecided => Medium
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1221790
>
> Title:
> Screen brightness is maximum upon fresh boot
>
> Status in “linux” package in Ubuntu:
> Confirmed
>
> Bug description:
> Hello,
>
> Trouble: Everytime I restart or cold boot my Thinkpad X1 laptop, my
> screen brightness is set to maximum.
>
> Expected Behaviour: Brighteness setting is retained between reboots
>
> My laptop uses UEFI.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 13.10
> Package: linux-image-3.11.0-4-generic 3.11.0-4.9
> ProcVersionSignature: Ubuntu 3.11.0-4.9-generic 3.11.0-rc7
> Uname: Linux 3.11.0-4-generic x86_64
> ApportVersion: 2.12.1-0ubuntu3
> Architecture: amd64
> AudioDevicesInUse:
> USER PID ACCESS COMMAND
> /dev/snd/controlC0: anmar 1798 F.... pulseaudio
> Date: Fri Sep 6 11:20:05 2013
> HibernationDevice: RESUME=UUID=2e39ee55-2a87-4298-a2d0-1c8ef5de5a96
> InstallationDate: Installed on 2013-08-09 (27 days ago)
> InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130809)
> MachineType: LENOVO 3443CTO
> MarkForUpload: True
> ProcFB: 0 inteldrmfb
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-4-generic.efi.signed root=UUID=1784df7c-8b5f-4550-84f2-13e73c2915fe ro quiet splash vt.handoff=7
> RelatedPackageVersions:
> linux-restricted-modules-3.11.0-4-generic N/A
> linux-backports-modules-3.11.0-4-generic N/A
> linux-firmware 1.113
> SourcePackage: linux
> UpgradeStatus: No upgrade log present (probably fresh install)
> dmi.bios.date: 04/29/2013
> dmi.bios.vendor: LENOVO
> dmi.bios.version: G6ET96WW (2.56 )
> dmi.board.asset.tag: Not Available
> dmi.board.name: 3443CTO
> dmi.board.vendor: LENOVO
> dmi.board.version: Win8 STD DPK TPG
> dmi.chassis.asset.tag: No Asset Information
> dmi.chassis.type: 10
> dmi.chassis.vendor: LENOVO
> dmi.chassis.version: Not Available
> dmi.modalias: dmi:bvnLENOVO:bvrG6ET96WW(2.56):bd04/29/2013:svnLENOVO:pn3443CTO:pvrThinkPadX1Carbon:rvnLENOVO:rn3443CTO:rvrWin8STDDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
> dmi.product.name: 3443CTO
> dmi.product.version: ThinkPad X1 Carbon...

[Joseph Salisbury (jsalisbury)]

You can select which kernel to boot from the GRUB menu. To access the GRUB menu, hold the shift key after poweron and the BIOS loads.

[Joseph Salisbury (jsalisbury)]

Given the number of bugs that the Kernel Team receives during any development cycle it is impossible for us to review them all. Therefore, we occasionally resort to using automated bots to request further testing. This is such a request.

We are approaching release and would like to confirm if this bug is still present. Please test again with the latest development kernel and indicate in the bug if this issue still exists or not.

You can update to the latest development kernel by simply running the following commands in a terminal window:

    sudo apt-get update
    sudo apt-get dist-upgrade

If the bug still exists, change the bug status from Incomplete to Confirmed. If the bug no longer exists, change the bug status from Incomplete to Fix Released.

Thank you for your help, we really do appreciate it.

[Anmar Oueja (anmar)]

I just confirmed that the problem continue to exist using Linux X1
3.11.0-8-generic #15-Ubuntu kernel. The 13.10 system is updated as of
2013.09.21.

On 20 September 2013 18:40, Joseph Salisbury
<email address hidden> wrote:
> Given the number of bugs that the Kernel Team receives during any
> development cycle it is impossible for us to review them all. Therefore,
> we occasionally resort to using automated bots to request further
> testing. This is such a request.
>
> We are approaching release and would like to confirm if this bug is
> still present. Please test again with the latest development kernel and
> indicate in the bug if this issue still exists or not.
>
> You can update to the latest development kernel by simply running the
> following commands in a terminal window:
>
> sudo apt-get update
> sudo apt-get dist-upgrade
>
> If the bug still exists, change the bug status from Incomplete to
> Confirmed. If the bug no longer exists, change the bug status from
> Incomplete to Fix Released.
>
> Thank you for your help, we really do appreciate it.
>
>
> ** Changed in: linux (Ubuntu)
> Status: Confirmed => Incomplete
>
> ** Tags added: kernel-request-3.11.0-7.14
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1221790
>
> Title:
> Screen brightness is maximum upon fresh boot
>
> Status in “linux” package in Ubuntu:
> Incomplete
>
> Bug description:
> Hello,
>
> Trouble: Everytime I restart or cold boot my Thinkpad X1 laptop, my
> screen brightness is set to maximum.
>
> Expected Behaviour: Brighteness setting is retained between reboots
>
> My laptop uses UEFI.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 13.10
> Package: linux-image-3.11.0-4-generic 3.11.0-4.9
> ProcVersionSignature: Ubuntu 3.11.0-4.9-generic 3.11.0-rc7
> Uname: Linux 3.11.0-4-generic x86_64
> ApportVersion: 2.12.1-0ubuntu3
> Architecture: amd64
> AudioDevicesInUse:
> USER PID ACCESS COMMAND
> /dev/snd/controlC0: anmar 1798 F.... pulseaudio
> Date: Fri Sep 6 11:20:05 2013
> HibernationDevice: RESUME=UUID=2e39ee55-2a87-4298-a2d0-1c8ef5de5a96
> InstallationDate: Installed on 2013-08-09 (27 days ago)
> InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130809)
> MachineType: LENOVO 3443CTO
> MarkForUpload: True
> ProcFB: 0 inteldrmfb
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-4-generic.efi.signed root=UUID=1784df7c-8b5f-4550-84f2-13e73c2915fe ro quiet splash vt.handoff=7
> RelatedPackageVersions:
> linux-restricted-modules-3.11.0-4-generic N/A
> linux-backports-modules-3.11.0-4-generic N/A
> linux-firmware 1.113
> SourcePackage: linux
> UpgradeStatus: No upgrade log present (probably fresh install)
> dmi.bios.date: 04/29/2013
> dmi.bios.vendor: LENOVO
> dmi.bios.version: G6ET96WW (2.56 )
> dmi.board.asset.tag: Not Available
> dmi.board.name: 3443CTO
> dmi.board.vendor: LENOVO
> dmi.board.version: Win8 STD DPK TPG
> dmi.chassis.asset.tag: No Asset Information
> dmi.chassis.type: 10
> dmi.chassis.vendor: LENOVO
> dmi.ch...

[Anmar Oueja (anmar)]

I did upgrade the BIOS a few weeks ago when I was running 13.10.
Unfortunately, this didn't change anything. I am now running 14.04
with the latest apt-get and the results are the same.

> What happened?

Upon cold boot or restart, the screen brightness is set to maximum
even if my setting wasn't.

> Output of the command "sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date"

G6ET99WW (2.59 )
11/19/2013

One thing I noticed is that when the machine boots and the "lenovo"
logo is displayed, the screen brightness is set to maximum, which
leads to believe that UEFI runtime services may not be setting the
brightness variable properly so it isn't persistent.

[Anmar Oueja (anmar)]

I am now booting 14.04 dev images and the problem persists.

On 18 December 2013 07:09, Christopher M. Penalver
<email address hidden> wrote:
> Anmar Oueja, thank you for providing the requested information. Could
> you please confirm this issue exists with the latest development release
> of Ubuntu? ISO images are available from http://cdimage.ubuntu.com
> /daily-live/current/ . If the issue remains, could you please just make
> a comment to this?
>
> ** Tags removed: bios-outdated-2.59
> ** Tags added: latest-bios-2.59
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1221790
>
> Title:
> 8086:0166 [ThinkPad X1 Carbon] Screen brightness is maximum upon fresh
> boot
>
> Status in “linux” package in Ubuntu:
> Incomplete
>
> Bug description:
> Hello,
>
> Trouble: Everytime I restart or cold boot my Thinkpad X1 laptop, my
> screen brightness is set to maximum.
>
> Expected Behaviour: Brighteness setting is retained between reboots
>
> My laptop uses UEFI.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 13.10
> Package: linux-image-3.11.0-4-generic 3.11.0-4.9
> ProcVersionSignature: Ubuntu 3.11.0-4.9-generic 3.11.0-rc7
> Uname: Linux 3.11.0-4-generic x86_64
> ApportVersion: 2.12.1-0ubuntu3
> Architecture: amd64
> AudioDevicesInUse:
> USER PID ACCESS COMMAND
> /dev/snd/controlC0: anmar 1798 F.... pulseaudio
> Date: Fri Sep 6 11:20:05 2013
> HibernationDevice: RESUME=UUID=2e39ee55-2a87-4298-a2d0-1c8ef5de5a96
> InstallationDate: Installed on 2013-08-09 (27 days ago)
> InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130809)
> MachineType: LENOVO 3443CTO
> MarkForUpload: True
> ProcFB: 0 inteldrmfb
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-4-generic.efi.signed root=UUID=1784df7c-8b5f-4550-84f2-13e73c2915fe ro quiet splash vt.handoff=7
> RelatedPackageVersions:
> linux-restricted-modules-3.11.0-4-generic N/A
> linux-backports-modules-3.11.0-4-generic N/A
> linux-firmware 1.113
> SourcePackage: linux
> UpgradeStatus: No upgrade log present (probably fresh install)
> dmi.bios.date: 04/29/2013
> dmi.bios.vendor: LENOVO
> dmi.bios.version: G6ET96WW (2.56 )
> dmi.board.asset.tag: Not Available
> dmi.board.name: 3443CTO
> dmi.board.vendor: LENOVO
> dmi.board.version: Win8 STD DPK TPG
> dmi.chassis.asset.tag: No Asset Information
> dmi.chassis.type: 10
> dmi.chassis.vendor: LENOVO
> dmi.chassis.version: Not Available
> dmi.modalias: dmi:bvnLENOVO:bvrG6ET96WW(2.56):bd04/29/2013:svnLENOVO:pn3443CTO:pvrThinkPadX1Carbon:rvnLENOVO:rn3443CTO:rvrWin8STDDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
> dmi.product.name: 3443CTO
> dmi.product.version: ThinkPad X1 Carbon
> dmi.sys.vendor: LENOVO
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1221790/+subscriptions

[Anmar Oueja (anmar)]

Unfortunately, this issue continue to exists in the upstream 3.13-rc3 kernel. will update the tags as requested.

[penalvch (penalvch)]

Anmar Oueja, thank you for testing the mainline kernel. The next step is to fully commit bisect from Raring to Saucy, in order to identify the offending commit. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection ?

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

[Anmar Oueja (anmar)]

I have been busy. I will test with the latest 3.14-rc3 of greater.