Fn key control of backlight broken after upgrade to 10.10
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Linux |
Fix Released
|
Medium
|
|||
linux (Fedora) |
Won't Fix
|
Medium
|
|||
linux (Ubuntu) |
Fix Released
|
Undecided
|
Tim Gardner | ||
Maverick |
Fix Released
|
Undecided
|
Tim Gardner | ||
Natty |
Fix Released
|
Undecided
|
Tim Gardner |
Bug Description
After an upgrade to Ubuntu 10.10 the previously natively-supported Fn key control of backlight brightness is gone. I can control backlight with xbacklight, as before.
Models of notebook affected include Sony Vaio SZ4 and SZ6.
Git bisect locates the bug to commit bcbfc24ead69357
in Maverick's kernel branch
http://
This bug has been fixed in Linus' mainline, commit de391d12500ede1
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: acpi-support 0.137
ProcVersionSign
Uname: Linux 2.6.35-22-generic x86_64
Architecture: amd64
Date: Mon Oct 11 11:21:39 2010
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100412)
ProcEnviron:
LANG=en_GB.utf8
SHELL=/bin/bash
SourcePackage: acpi-support
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfc500000 irq 48'
Mixer name : 'SigmaTel STAC9872AK'
Components : 'HDA:83847662,
Controls : 11
Simple ctrls : 7
DistroRelease: Ubuntu 10.10
HibernationDevice: RESUME=
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100412)
MachineType: Sony Corporation VGN-SZ650N
Package: linux (not installed)
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcCmdLine: BOOT_IMAGE=
ProcEnviron:
PATH=(custom, no user)
LANG=en_GB.utf8
SHELL=/bin/bash
ProcVersionSign
Regression: Yes
RelatedPackageV
Reproducible: Yes
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
Tags: maverick kernel-graphics regression-release needs-upstream-
Uname: Linux 2.6.35-22-generic x86_64
UserGroups:
dmi.bios.date: 04/04/2008
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: R0122S5
dmi.board.
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.
dmi.modalias: dmi:bvnPhoenixT
dmi.product.name: VGN-SZ650N
dmi.product.
dmi.sys.vendor: Sony Corporation
---
Architecture: amd64
DistroRelease: Ubuntu 10.10
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100412)
Package: linux (not installed)
ProcEnviron:
PATH=(custom, no user)
LANG=en_GB.utf8
SHELL=/bin/bash
Tags: maverick
Uname: Linux 2.6.36-
UnreportableReason: The running kernel is not an Ubuntu kernel
UserGroups:
tags: | added: regression-release |
description: | updated |
description: | updated |
description: | updated |
tags: | added: acpi-apic |
Changed in linux: | |
status: | Unknown → Fix Released |
Changed in linux (Ubuntu): | |
assignee: | nobody → Tim Gardner (timg-tpi) |
status: | New → In Progress |
Changed in linux (Ubuntu Natty): | |
status: | In Progress → Fix Released |
Changed in linux (Ubuntu Maverick): | |
assignee: | nobody → Tim Gardner (timg-tpi) |
status: | New → In Progress |
Changed in linux (Ubuntu Maverick): | |
status: | In Progress → Fix Committed |
Changed in linux: | |
importance: | Unknown → Medium |
tags: | added: verification-needed-maverick |
tags: |
added: verification-done-maverick removed: verification-needed-maverick |
Changed in linux (Fedora): | |
importance: | Unknown → Medium |
status: | Unknown → Won't Fix |
Bug not present if I boot with last 10.04 kernel, which was left as an option in my Grub menu. Reassigning to Linux as a kernel issue.