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Message #32552
[Bug 1178727] Re: 8086:0046 Screen brightness can not be adjusted in Raring with Intel Ironlake graphics
Ethan Shalev, if for any reason you encounter any potential collateral issues from acpi_osi=Linux, you could try using a different debug kernel parameter:
acpi_backlight=vendor
Despite this, could you please undo any WORKAROUNDs, and test the latest
mainline kernel via http://kernel.ubuntu.com/~kernel-
ppa/mainline/v3.13-rc2-trusty/ and advise on the results?
** Description changed:
- What looks like a regression from this bug:
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/573984
+ I had no problem with 12.04 or 12.10, but upon upgrading to 13.04, once
+ again, I cannot adjust the screen brightness. It is stuck at 100%.
- This issue had been resolved, and I had no problem with 12.04 or 12.10,
- but upon upgrading to 13.04, once again, I cannot adjust the screen
- brightness. It is stuck at 100%.
+ WORKAROUND: GRUB_CMDLINE_LINUX="acpi_osi=Linux" now allows me to adjust
+ the brightness, although at boot, it's set to 0.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image-3.8.0-19-generic 3.8.0-19.30
ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
- USER PID ACCESS COMMAND
- /dev/snd/controlC0: ethan 2358 F.... pulseaudio
+ USER PID ACCESS COMMAND
+ /dev/snd/controlC0: ethan 2358 F.... pulseaudio
CheckboxSubmission: 4463f48e66443bc710cec4d3024fcac7
CheckboxSystem: 090f50ffa15f2babaae2e4e2bf775960
Date: Fri May 10 15:08:12 2013
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=c1607e74-253f-4660-bdb7-45f46947f909
Lsusb:
- Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
- Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
- Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
- Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
- Bus 001 Device 003: ID 064e:a103 Suyin Corp. Acer/HP Integrated Webcam [CN0314]
+ Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
+ Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
+ Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+ Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+ Bus 001 Device 003: ID 064e:a103 Suyin Corp. Acer/HP Integrated Webcam [CN0314]
MachineType: Gateway NV79
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-19-generic root=UUID=da8a8682-2f9b-4878-8b46-6d23657e2137 ro quiet splash acpi_backlight=vendor vt.handoff=7
RelatedPackageVersions:
- linux-restricted-modules-3.8.0-19-generic N/A
- linux-backports-modules-3.8.0-19-generic N/A
- linux-firmware 1.106
+ linux-restricted-modules-3.8.0-19-generic N/A
+ linux-backports-modules-3.8.0-19-generic N/A
+ linux-firmware 1.106
SourcePackage: linux
UpgradeStatus: Upgraded to raring on 2013-04-26 (14 days ago)
dmi.bios.date: 04/25/2011
dmi.bios.vendor: Gateway
dmi.bios.version: V1.08
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: NV79
dmi.board.vendor: Gateway
dmi.board.version: V1.08
dmi.chassis.type: 10
dmi.chassis.vendor: Gateway
dmi.chassis.version: V1.08
dmi.modalias: dmi:bvnGateway:bvrV1.08:bd04/25/2011:svnGateway:pnNV79:pvrV1.08:rvnGateway:rnNV79:rvrV1.08:cvnGateway:ct10:cvrV1.08:
dmi.product.name: NV79
dmi.product.version: V1.08
dmi.sys.vendor: Gateway
--
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1178727
Title:
8086:0046 Screen brightness can not be adjusted in Raring with Intel
Ironlake graphics
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
I had no problem with 12.04 or 12.10, but upon upgrading to 13.04,
once again, I cannot adjust the screen brightness. It is stuck at
100%.
WORKAROUND: GRUB_CMDLINE_LINUX="acpi_osi=Linux" now allows me to
adjust the brightness, although at boot, it's set to 0.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image-3.8.0-19-generic 3.8.0-19.30
ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ethan 2358 F.... pulseaudio
CheckboxSubmission: 4463f48e66443bc710cec4d3024fcac7
CheckboxSystem: 090f50ffa15f2babaae2e4e2bf775960
Date: Fri May 10 15:08:12 2013
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=c1607e74-253f-4660-bdb7-45f46947f909
Lsusb:
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 064e:a103 Suyin Corp. Acer/HP Integrated Webcam [CN0314]
MachineType: Gateway NV79
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-19-generic root=UUID=da8a8682-2f9b-4878-8b46-6d23657e2137 ro quiet splash acpi_backlight=vendor vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.8.0-19-generic N/A
linux-backports-modules-3.8.0-19-generic N/A
linux-firmware 1.106
SourcePackage: linux
UpgradeStatus: Upgraded to raring on 2013-04-26 (14 days ago)
dmi.bios.date: 04/25/2011
dmi.bios.vendor: Gateway
dmi.bios.version: V1.08
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: NV79
dmi.board.vendor: Gateway
dmi.board.version: V1.08
dmi.chassis.type: 10
dmi.chassis.vendor: Gateway
dmi.chassis.version: V1.08
dmi.modalias: dmi:bvnGateway:bvrV1.08:bd04/25/2011:svnGateway:pnNV79:pvrV1.08:rvnGateway:rnNV79:rvrV1.08:cvnGateway:ct10:cvrV1.08:
dmi.product.name: NV79
dmi.product.version: V1.08
dmi.sys.vendor: Gateway
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