Public bug reported:
After installed precise beta1 on Macbook Pro5,5 with EFI boot, (i.e. a
GPT partitioned, /dev/sda1 20MB FAT partition for GRUB EFI boot loader
under /EFI/ubuntu/grubx86.efi), backlight no longer works. Module
apple_bl.ko inserted, but driver probe failed after trying to write to
the intensity and read it back to verify if it's same value. This is
most likely caused by booting from EFI.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-generic 3.2.0.17.17
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic 3.2.6
Uname: Linux 3.2.0-17-generic x86_64
NonfreeKernelModules: nvidia wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.94.1-0ubuntu2
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: Cirrus Analog [Cirrus Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ycmiao 2170 F.... pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not
found.
Card0.Amixer.info:
Card hw:0 'NVidia'/'HDA NVidia at 0xd3480000 irq 20'
Mixer name : 'Cirrus Logic CS4206'
Components : 'HDA:10134206,106b4d00,00100301'
Controls : 18
Simple ctrls : 9
Date: Mon Mar 12 11:02:42 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
MachineType: Apple Inc. MacBookPro5,5
ProcEnviron:
TERM=xterm
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-17-generic
root=UUID=6da468bc-a989-4778-9e2c-56a3665c5e7b ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.2.0-17-generic N/A
linux-backports-modules-3.2.0-17-generic N/A
linux-firmware 1.71
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/15/09
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP55.88Z.00AC.B03.0906151708
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-F2268AC8
dmi.board.vendor: Apple Inc.
dmi.chassis.asset.tag: Asset Tag#
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F2268AC8
dmi.modalias:
dmi:bvnAppleInc.:bvrMBP55.88Z.00AC.B03.0906151708:bd06/15/09:svnAppleInc.:pnMacBookPro5,5:pvr1.0:rvnAppleInc.:rnMac-F2268AC8:rvr:cvnAppleInc.:ct10:cvrMac-F2268AC8:
dmi.product.name: MacBookPro5,5
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/952698
Title:
Backlight no longer works on Macbook Pro5,5 with EFI boot
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/952698/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
