This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- precise' to 'verification-done-precise'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-precise -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1162026 Title: backlight not adjustable after screen turns off and then back on Status in Dell Sputnik: Fix Released Status in “linux” package in Ubuntu: Fix Released Status in “linux” source package in Raring: Fix Released Bug description: On both versions of the XPS 13 (L322X and L321X) running Ubuntu Raring with the latest 3.8 kernel, letting the screen turn off and then back on causes the backlight to go to maximum brightness and become not adjustable. This behavior is not seen with suspend/resume or at boot (such as with LP #954661). However, like with those issues, "/bin/echo 0 > /sys/class/backlight/intel_backlight/brightness" allows the backlight to become adjustable again. I have verified this behavior on two systems. The backlight behaved correctly on both with Precise running Kamal's special kernel build. --- ApportVersion: 2.9.2-0ubuntu5 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/hwC0D3', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D3p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-precise-amd64-20120703-2 DistroRelease: Ubuntu 13.04 HibernationDevice: RESUME=UUID=2827209a-01af-48d1-82e8-472354ab65a7 InstallationDate: Installed on 2013-03-26 (3 days ago) InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary 20120703-15:08 MachineType: Dell Inc. Dell System XPS L322X MarkForUpload: True Package: linux (not installed) ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-15-generic root=UUID=5c924dca-ecf4-4d3d-a7d2-34780269b9c5 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.8.0-15.25-generic 3.8.4 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.8.0-15-generic N/A linux-backports-modules-3.8.0-15-generic N/A linux-firmware 1.104 Tags: raring Uname: Linux 3.8.0-15-generic x86_64 UpgradeStatus: Upgraded to raring on 2013-03-29 (0 days ago) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo dmi.bios.date: 02/21/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: B40 dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrB40:bd02/21/2013:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Dell System XPS L322X dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1162026/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : email@example.com Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp