Carl Englund, could you also please attach the following as separate attachments: acpidump > acpidump.dat dmidecode > dmidecode.log
** Description changed: - Brightness control workaround adding "acpi_backlight=vendor" to kernel - boot parameters works...BUT - when system shuts down screen after 10min - idle, the screen remains black and doesn't switch on again (computer - still running normally and can be rebooted by ctrl+alt+f2, - ctrl+alt+del). + Brightness control does not work in Oneiric. + + + I also tried mainline kernel with no extra bootparams but backlight control did not work there: + linux-image-3.4.0-030400rc1-generic_3.4.0-030400rc1.201203312035_amd64 + + + without extra boot parameters: + ls /sys/class/backlight + acpi_video0 acpi_video1 intel_backlight + + + with "acpi_backlight=vendor" boot parameter: + ls /sys/class/backlight + acer-wmi intel_backlight + + WORKAROUND: add "acpi_osi=Linux" kernel boot parameter. + + WORKAROUND: add "acpi_backlight=vendor" kernel parameter. But, when + system shuts down screen after 10min idle, the screen remains black and + doesn't switch on again (computer still running normally and can be + rebooted by ctrl+alt+f2, ctrl+alt+del). ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: linux-image-3.0.0-12-generic 3.0.0-12.20 ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4 Uname: Linux 3.0.0-12-generic x86_64 NonfreeKernelModules: wl AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.23-0ubuntu3 Architecture: amd64 ArecordDevices: - **** List of CAPTURE Hardware Devices **** - card 0: Intel [HDA Intel], device 0: ALC271X Analog [ALC271X Analog] - Subdevices: 1/1 - Subdevice #0: subdevice #0 + **** List of CAPTURE Hardware Devices **** + card 0: Intel [HDA Intel], device 0: ALC271X Analog [ALC271X Analog] + Subdevices: 1/1 + Subdevice #0: subdevice #0 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC1: diskdoc 2022 F.... pulseaudio - /dev/snd/controlC0: diskdoc 2022 F.... pulseaudio + USER PID ACCESS COMMAND + /dev/snd/controlC1: diskdoc 2022 F.... pulseaudio + /dev/snd/controlC0: diskdoc 2022 F.... pulseaudio CRDA: - country DE: - (2400 - 2483 @ 40), (N/A, 20) - (5150 - 5250 @ 40), (N/A, 20), NO-OUTDOOR - (5250 - 5350 @ 40), (N/A, 20), NO-OUTDOOR, DFS - (5470 - 5725 @ 40), (N/A, 26), DFS + country DE: + (2400 - 2483 @ 40), (N/A, 20) + (5150 - 5250 @ 40), (N/A, 20), NO-OUTDOOR + (5250 - 5350 @ 40), (N/A, 20), NO-OUTDOOR, DFS + (5470 - 5725 @ 40), (N/A, 26), DFS Card0.Amixer.info: - Card hw:0 'Intel'/'HDA Intel at 0xf0800000 irq 44' - Mixer name : 'Realtek ALC271X' - Components : 'HDA:10ec0269,10250364,00100100' - Controls : 19 - Simple ctrls : 11 + Card hw:0 'Intel'/'HDA Intel at 0xf0800000 irq 44' + Mixer name : 'Realtek ALC271X' + Components : 'HDA:10ec0269,10250364,00100100' + Controls : 19 + Simple ctrls : 11 Card1.Amixer.info: - Card hw:1 'Generic'/'HD-Audio Generic at 0xafedc000 irq 45' - Mixer name : 'ATI R6xx HDMI' - Components : 'HDA:1002aa01,00aa0100,00100200' - Controls : 4 - Simple ctrls : 1 + Card hw:1 'Generic'/'HD-Audio Generic at 0xafedc000 irq 45' + Mixer name : 'ATI R6xx HDMI' + Components : 'HDA:1002aa01,00aa0100,00100200' + Controls : 4 + Simple ctrls : 1 Card1.Amixer.values: - Simple mixer control 'IEC958',0 - Capabilities: pswitch pswitch-joined penum - Playback channels: Mono - Mono: Playback [on] + Simple mixer control 'IEC958',0 + Capabilities: pswitch pswitch-joined penum + Playback channels: Mono + Mono: Playback [on] Date: Thu Oct 27 13:42:10 2011 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=11efe0be-9f52-4ee5-ae6c-7e025de38353 InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1) MachineType: Acer Aspire 3820 ProcEnviron: - LANGUAGE=sv_FI:sv_SE:sv:en - PATH=(custom, no user) - LANG=sv_FI.utf8 - SHELL=/bin/bash + LANGUAGE=sv_FI:sv_SE:sv:en + PATH=(custom, no user) + LANG=sv_FI.utf8 + SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=8b7cae99-dae3-4d14-bbd3-24f82a9e0b57 ro quiet splash rootflags=data=writeback vt.handoff=7 RelatedPackageVersions: - linux-restricted-modules-3.0.0-12-generic N/A - linux-backports-modules-3.0.0-12-generic N/A - linux-firmware 1.60 + linux-restricted-modules-3.0.0-12-generic N/A + linux-backports-modules-3.0.0-12-generic N/A + linux-firmware 1.60 SourcePackage: linux StagingDrivers: brcmutil mei brcmsmac UpgradeStatus: Upgraded to oneiric on 2011-10-17 (10 days ago) dmi.bios.date: 10/27/2010 dmi.bios.vendor: Phoenix Technologies LTD dmi.bios.version: V1.19 dmi.board.asset.tag: No Asset Tag dmi.board.name: JM31_CP dmi.board.vendor: Acer dmi.board.version: V1.19 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: V1.19 dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrV1.19:bd10/27/2010:svnAcer:pnAspire3820:pvrV1.19:rvnAcer:rnJM31_CP:rvrV1.19:cvnAcer:ct10:cvrV1.19: dmi.product.name: Aspire 3820 dmi.product.version: V1.19 dmi.sys.vendor: Acer -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/882506 Title: Brightness control broken on Acer TimelineX 3820TG using Intel IGP To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/882506/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
