[Toshiba Satellite R830-1H3] brightness control works until sleep
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Linux |
Incomplete
|
Low
|
|||
linux (Ubuntu) |
Triaged
|
Low
|
Unassigned |
Bug Description
On my Toshiba Satellite R830, I have 12.10 AMD64. The Fn + F6, Fn + F7 buttons reduce/increase the brightness level of the screen. The issue is that they stop working after waking my computer from sleep. When this happens I cannot even control brightness by going to "System Settings/Brightness and Lock". I had Ubuntu 12.04 installed before and I had the same identical problem. Now I installed the upstream kernel 3.7rc5 and the situation is even worse, because on wakeup, the brightness is at 100% whereas on the standard kernel it remembers the brightness value.
WORKAROUND: I modified /etc/default/grub changing the line:
GRUB_CMDLINE_
to:
GRUB_CMDLINE_
Then updated grub with:
sudo update-grub
and the problem is solved.
WORKAROUND: As root (not with sudo but actually changing user: su root), change the value in sys/class/
echo 2937 > /sys/class/
or better still:
echo 300 | sudo tee /sys/class/
These values are not between 0 and 7 (as the ones in the other directory), but between 284 and 4539, or something like that. Source is http://
WORKAROUND: In Raring:
echo 400 | sudo tee /sys/class/
http://
Sent an e-mail upstream to: http://
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-
ProcVersionSign
Uname: Linux 3.2.0-32-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu14
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xc4820000 irq 49'
Mixer name : 'Intel CougarPoint HDMI'
Components : 'HDA:10ec0269,
Controls : 25
Simple ctrls : 12
Date: Sat Oct 20 19:04:25 2012
HibernationDevice: RESUME=
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
MachineType: TOSHIBA SATELLITE R830
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.79.1
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/31/2012
dmi.bios.vendor: TOSHIBA
dmi.bios.version: Version 3.90
dmi.board.
dmi.board.name: Portable PC
dmi.board.vendor: TOSHIBA
dmi.board.version: Version A0
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.
dmi.modalias: dmi:bvnTOSHIBA:
dmi.product.name: SATELLITE R830
dmi.product.
dmi.sys.vendor: TOSHIBA
---
ApportVersion: 2.6.1-0ubuntu6
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/pcmC0D0c: chris 2074 F...m pulseaudio
/dev/snd/pcmC0D0p: chris 2074 F...m pulseaudio
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=
InstallationDate: Installed on 2012-09-19 (54 days ago)
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
MachineType: TOSHIBA SATELLITE R830
MarkForUpload: True
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
ProcVersionSign
RelatedPackageV
linux-
linux-
linux-firmware 1.95
Tags: quantal running-unity
Uname: Linux 3.5.0-18-generic x86_64
UpgradeStatus: Upgraded to quantal on 2012-10-23 (20 days ago)
UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo
dmi.bios.date: 07/31/2012
dmi.bios.vendor: TOSHIBA
dmi.bios.version: Version 3.90
dmi.board.
dmi.board.name: Portable PC
dmi.board.vendor: TOSHIBA
dmi.board.version: Version A0
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.
dmi.modalias: dmi:bvnTOSHIBA:
dmi.product.name: SATELLITE R830
dmi.product.
dmi.sys.vendor: TOSHIBA
Changed in linux (Ubuntu): | |
status: | New → Confirmed |
tags: | added: natty |
description: | updated |
summary: |
- Toshiba brightness control keys work until sleep + Toshiba brightness control work until sleep |
summary: |
- Toshiba brightness control work until sleep + Toshiba brightness control works until sleep |
description: | updated |
summary: |
- Toshiba brightness control works until sleep + [Toshiba Satellite R830] brightness control works until sleep |
description: | updated |
tags: |
added: needs-upstream-testing raring removed: kernel-bug-exists-upstream |
tags: | added: latest-bios-3.9 |
tags: | removed: needs-computer-model |
tags: | added: lucid |
tags: | removed: lucid |
description: | updated |
tags: | added: kernel-bug-exists-upstream kernel-bug-exists-upstream-v3.10-rc1-saucy |
tags: |
added: kernel-bug-exists-upstream-v3.10-rc1 removed: kernel-bug-exists-upstream-v3.10-rc1-saucy |
tags: | removed: kernel-bug-exists-upstream-v3.7-rc2 needs-upstream-testing |
Changed in linux (Ubuntu): | |
status: | Incomplete → Confirmed |
tags: |
added: kernel-bug-exists-upstream removed: kernel-bug-exists-upstream-v3.10-rc1 |
tags: |
added: latest-bios-4.10 removed: latest-bios-3.9 |
description: | updated |
Changed in linux (Ubuntu): | |
status: | Incomplete → Confirmed |
tags: |
added: needs-upstream-testing removed: kernel-bug-exists-upstream |
tags: | added: unable-to-test-lucid |
tags: |
added: kernel-bug-exists-upstream-v3.10-rc4 removed: kernel-bug-exists-upstream-v3.10-rc3 |
description: | updated |
tags: |
added: needs-upstream-testing removed: kernel-bug-exists-upstream |
Changed in linux: | |
importance: | Unknown → Low |
status: | Unknown → Confirmed |
Changed in linux: | |
status: | Confirmed → Incomplete |
tags: | added: needs-full-computer-model |
tags: | removed: needs-full-computer-model |
summary: |
- [Toshiba Satellite R830] brightness control works until sleep + [Toshiba Satellite R830-1H3] brightness control works until sleep |
Changed in linux (Ubuntu): | |
importance: | Medium → Low |
status: | Confirmed → Triaged |
To Do, thank you for reporting this and helping make Ubuntu better. Could you please provide the information following https:/ /wiki.ubuntu. com/DebuggingKe rnelSuspend ?
As well, could you please test the latest upstream kernel available following https:/ /wiki.ubuntu. com/KernelMainl ineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the kernel in the mainline kernels archive directory daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags: fixed-upstream fixed-upstream- VERSION- NUMBER
kernel-
kernel-
where VERSION-NUMBER is the version number of the kernel you tested. For example: fixed-upstream- v3.7-rc1- quantal
kernel-
This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag: testing
needs-upstream-
If the mainline kernel does not fix this bug, please add the following tags: bug-exists- upstream bug-exists- upstream- VERSION- NUMBER
kernel-
kernel-
As well, please remove the tag: testing
needs-upstream-
If you are unable to test the mainline kernel, please comment as to why specifically you were unable to test it and add the following tags: unable- to-test- upstream unable- to-test- upstream- VERSION- NUMBER
kernel-
kernel-
Please let us know your results. Thank you for your understanding.
Helpful bug reporting tips: /help.ubuntu. com/community/ ReportingBugs
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