Public bug reported:
On my Toshiba R840, the brightness controls work fine on first boot,
but do nothing after suspend/resume. This is particularly frustrating
if I suspend with the screen at all dimmed, because once I resume, I
have no way of increasing the brightness short of a reboot.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-generic 3.2.0.16.16
ProcVersionSignature: Ubuntu 3.2.0-16.25-generic 3.2.6
Uname: Linux 3.2.0-16-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: james 2251 F.... pulseaudio
/dev/snd/pcmC0D0p: james 2251 F...m pulseaudio
CRDA:
country EU:
(2402 - 2482 @ 40), (N/A, 20)
(5170 - 5250 @ 40), (N/A, 20)
(5250 - 5330 @ 40), (N/A, 20), DFS
(5490 - 5710 @ 40), (N/A, 27), DFS
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xc4820000 irq 50'
Mixer name : 'Intel CougarPoint HDMI'
Components : 'HDA:10ec0269,1179062a,00100100
HDA:80862805,11790001,00100000'
Controls : 30
Simple ctrls : 12
Date: Sat Feb 18 21:27:12 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MachineType: TOSHIBA TECRA R840
ProcEnviron:
LANGUAGE=en_GB:en
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-16-generic
root=UUID=16b08eff-30c4-4fe0-bede-cf8cb31270bf ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.2.0-16-generic N/A
linux-backports-modules-3.2.0-16-generic N/A
linux-firmware 1.69
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: Upgraded to precise on 2012-01-09 (39 days ago)
dmi.bios.date: 07/12/2011
dmi.bios.vendor: TOSHIBA
dmi.bios.version: Version 2.90
dmi.board.asset.tag: 0000000000
dmi.board.name: Portable PC
dmi.board.vendor: TOSHIBA
dmi.board.version: Version A0
dmi.chassis.asset.tag: 0000000000
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: Version 1.0
dmi.modalias:
dmi:bvnTOSHIBA:bvrVersion2.90:bd07/12/2011:svnTOSHIBA:pnTECRAR840:pvrPT42GE-00N006EN:rvnTOSHIBA:rnPortablePC:rvrVersionA0:cvnTOSHIBA:ct10:cvrVersion1.0:
dmi.product.name: TECRA R840
dmi.product.version: PT42GE-00N006EN
dmi.sys.vendor: TOSHIBA
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug precise staging
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https://bugs.launchpad.net/bugs/935778
Title:
Toshiba R840 - brightness controls work on first boot, but do nothing
after suspend/resume
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