apport information ** Attachment added: "Lspci.txt" https://bugs.launchpad.net/bugs/1775065/+attachment/5149044/+files/Lspci.txt
-- 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/1775065 Title: No brightness controls and /sys/class/backlight empty after upgrade to Bionic on laptop with GeForce GTX 1060 Mobile (kernel parameter acpi_osi= is a workaround) Status in linux package in Ubuntu: Confirmed Bug description: This is a case of "Backlight control does not work, and there are no entries in /sys/class/backlight" for what lspci reports as "NVIDIA Corporation GP106M [GeForce GTX 1060 Mobile] (rev a1)" where the kernel parameter acpi_osi= is a workaround. (The workaround is also recorded on Ask Ubuntu at https://askubuntu.com/questions/1030526 /brightness-on-laptop-msi-gt72vr-in-ubuntu-18-04-with-nvidia-gtx-1060 -mobile-does/1043598#1043598.) The problem is new for me after upgrade to Bionic, although the cause might be the corresponding update to the NVIDIA drivers. I will add attachments following the instructions at https://wiki.ubuntu.com/Kernel/Debugging/Backlight, though most of them seem to be uninteresting. If I can provide further information, please let me know. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-22-generic 4.15.0-22.24 ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17 Uname: Linux 4.15.0-22-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.9-0ubuntu7.1 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Mon Jun 4 14:20:34 2018 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: linux-signed UpgradeStatus: Upgraded to bionic on 2018-06-04 (0 days ago) --- ApportVersion: 2.20.9-0ubuntu7.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: bgarvin 2442 F.... pulseaudio /dev/snd/controlC0: bgarvin 2442 F.... pulseaudio CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=1b60cccb-eea7-4d0b-a32b-97d236a5177f Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 04f2:b5a7 Chicony Electronics Co., Ltd Bus 001 Device 003: ID 8087:0a2b Intel Corp. Bus 001 Device 002: ID 1c7a:0603 LighTuning Technology Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: System76, Inc. Oryx Pro NonfreeKernelModules: nvidia_modeset nvidia Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-22-generic root=UUID=557ebdfc-3380-4721-a494-65c34cb70b2f ro i8042.nomux i8042.reset acpi_osi= ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17 RelatedPackageVersions: linux-restricted-modules-4.15.0-22-generic N/A linux-backports-modules-4.15.0-22-generic N/A linux-firmware 1.173.1 Tags: bionic Uname: Linux 4.15.0-22-generic x86_64 UpgradeStatus: Upgraded to bionic on 2018-06-04 (1 days ago) UserGroups: adm lpadmin sambashare sudo vboxusers _MarkForUpload: True dmi.bios.date: 09/08/2016 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1.05.03RSA dmi.board.asset.tag: Tag 12345 dmi.board.name: Oryx Pro dmi.board.vendor: System76, Inc. dmi.board.version: oryp2 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: System76, Inc. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.05.03RSA:bd09/08/2016:svnSystem76,Inc.:pnOryxPro:pvroryp2:rvnSystem76,Inc.:rnOryxPro:rvroryp2:cvnSystem76,Inc.:ct10:cvrN/A: dmi.product.family: Not Applicable dmi.product.name: Oryx Pro dmi.product.version: oryp2 dmi.sys.vendor: System76, Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1775065/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
