Public bug reported: The backlight can be adjusted normally. But after suspend, the backlight will not adjust.
Minimal test case: boot to single user mode, tweak backlight using /sys/class/backlight/toshiba/brightness, suspend via mem to /sys/power/state. Also reported at http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=599768 and upstream https://bugzilla.kernel.org/show_bug.cgi?id=21012 It has been discussed by other Ubuntu users at http://ubuntuforums.org/showthread.php?t=1550219 ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: linux-image-2.6.35-22-generic 2.6.35-22.33 Regression: No Reproducible: Yes ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4 Uname: Linux 2.6.35-22-generic i686 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC259 Analog [ALC259 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jon 2007 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xd4720000 irq 48' Mixer name : 'Intel IbexPeak HDMI' Components : 'HDA:10ec0269,11790622,00100100 HDA:80862804,11790001,00100000' Controls : 21 Simple ctrls : 10 Date: Mon Oct 25 11:35:18 2010 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=fe4f88e2-9293-4e3e-9ef9-730bf4e52367 InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007) MachineType: TOSHIBA PORTEGE R700 ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=/dev/mapper/hostname-ubuntu ro quiet splash ProcEnviron: LANG=en_GB.utf8 SHELL=/bin/bash RelatedPackageVersions: linux-firmware 1.38 SourcePackage: linux dmi.bios.date: 08/26/2010 dmi.bios.vendor: TOSHIBA dmi.bios.version: Version 1.50 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:bvrVersion1.50:bd08/26/2010:svnTOSHIBA:pnPORTEGER700:pvrPT311E-01P019EN:rvnTOSHIBA:rnPortablePC:rvrVersionA0:cvnTOSHIBA:ct10:cvrVersion1.0: dmi.product.name: PORTEGE R700 dmi.product.version: PT311E-01P019EN dmi.sys.vendor: TOSHIBA ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 kernel-power maverick needs-upstream-testing resume suspend -- backlight controls on a toshiba r700 don't change backlight after resume from suspend https://bugs.launchpad.net/bugs/666217 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs