Matthew Haughton, thank you for reporting this and helping make Ubuntu
better. Could you please test the latest upstream kernel available from
the very top line at the top of the page (the release names are
irrelevant for testing, and please do not test the daily folder)
following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow
additional upstream developers to examine the issue.
If the test did not allow you to test to the issue (ex. you couldn't boot into
the OS) please make a comment in your report about this, and continue to test
the next most recent kernel version until you can test to the issue. Once
you've tested the upstream kernel, please comment on which kernel version
specifically you tested. If this bug is fixed in the mainline kernel, please
add the following tags by clicking on the yellow circle with a black pencil
icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-3.XY-rcZ
Where XY and Z are numbers corresponding to the kernel version.
If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-3.XY-rcZ
Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results.
Thank you for your understanding.
** Tags added: latest-bios-214 regression-update
** Changed in: linux (Ubuntu)
Importance: Undecided => Low
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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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/1440270
Title:
regression: backlight can't be adjusted on UX32VD with
3.19.0-12-generic kernel
Status in linux package in Ubuntu:
Incomplete
Bug description:
The keyboard buttons are working as I get the on screen notification.
But it has no effect on the backlight itself.
I rebooted and switched back to 3.19.0-11-generic which works fine,
rebooted and went back to 3.19.0-12-generic and it stopped working
again, so very confident something broke in the new kernel version.
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: linux-image-3.19.0-12-generic 3.19.0-12.12
ProcVersionSignature: Ubuntu 3.19.0-12.12-generic 3.19.3
Uname: Linux 3.19.0-12-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.17-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: snafu109 2549 F.... pulseaudio
CurrentDesktop: XFCE
Date: Fri Apr 3 21:34:50 2015
HibernationDevice: RESUME=UUID=4e46a15c-d441-4b34-ae15-a93302da75a5
InstallationDate: Installed on 2012-12-26 (828 days ago)
InstallationMedia: Xubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64
(20120817.3)
MachineType: ASUSTeK COMPUTER INC. UX32VD
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-12-generic
root=UUID=687d7b6d-6fe2-413c-84c1-ed511edff5f9 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.19.0-12-generic N/A
linux-backports-modules-3.19.0-12-generic N/A
linux-firmware 1.143
SourcePackage: linux
UpgradeStatus: Upgraded to vivid on 2015-03-10 (24 days ago)
dmi.bios.date: 01/29/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: UX32VD.214
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: UX32VD
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrUX32VD.214:bd01/29/2013:svnASUSTeKCOMPUTERINC.:pnUX32VD:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX32VD:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: UX32VD
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
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