apport information ** Tags added: apport-collected xenial
** Description changed: As per reported by several users, such as in https://ubuntuforums.org/showthread.php?t=2333398, apps that control screen gamma, such as Redshift/Flux/brightness-controller, stopped working under the newest kernel 4.4.0-34 in Ubuntu 16.04 LTS, and we're not sure what caused the issue. Those apps are still working well on external monitors. It's just the internal monitor that is not responsive. Any setting just simply has no effect. It seems that all the users are using Skylake-based laptop. In my case, my laptop is on Skylake and GTX980M. Links for the individual apps mentioned above: - Redshift http://jonls.dk/redshift/ - Flux https://justgetflux.com/linux.html - brightness-controller https://apps.ubuntu.com/cat/applications/brightness-controller/ + --- + ApportVersion: 2.20.1-0ubuntu2.1 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/pcmC0D0p: jx 4030 F...m pulseaudio + /dev/snd/controlC0: jx 4030 F.... pulseaudio + CurrentDesktop: Unity + DistroRelease: Ubuntu 16.04 + HibernationDevice: RESUME=UUID=66785c85-3633-4f60-b15d-718b7b14873e + InstallationDate: Installed on 2016-04-25 (125 days ago) + InstallationMedia: It + Lsusb: + Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub + Bus 001 Device 003: ID 8087:0a2a Intel Corp. + Bus 001 Device 002: ID 046d:c07e Logitech, Inc. + Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub + MachineType: Hasee Computer CP65R + NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia + Package: linux (not installed) + ProcFB: 0 inteldrmfb + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-28-generic root=UUID=d940d1fe-4c2c-4de3-b82d-108083812e0e ro quiet splash vt.handoff=7 + ProcVersionSignature: Ubuntu 4.4.0-28.47-generic 4.4.13 + RelatedPackageVersions: + linux-restricted-modules-4.4.0-28-generic N/A + linux-backports-modules-4.4.0-28-generic N/A + linux-firmware 1.157.3 + Tags: xenial + Uname: Linux 4.4.0-28-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo + _MarkForUpload: True + dmi.bios.date: 09/18/2015 + dmi.bios.vendor: American Megatrends Inc. + dmi.bios.version: 1.05.05 + dmi.board.asset.tag: Tag 12345 + dmi.board.name: P65_P67RGRERA + dmi.board.vendor: Notebook + dmi.board.version: Not Applicable + dmi.chassis.asset.tag: No Asset Tag + dmi.chassis.type: 10 + dmi.chassis.vendor: Notebook + dmi.chassis.version: N/A + dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.05.05:bd09/18/2015:svnHaseeComputer:pnCP65R:pvrNotApplicable:rvnNotebook:rnP65_P67RGRERA:rvrNotApplicable:cvnNotebook:ct10:cvrN/A: + dmi.product.name: CP65R + dmi.product.version: Not Applicable + dmi.sys.vendor: Hasee Computer ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/1617686/+attachment/4729270/+files/AlsaInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1617686 Title: Kernel 4.4.0-34 caused Redshift/Flux/brightness-controller etc. to stop working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1617686/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
