Gentoo Kernel: linux-4.4.67-gentoo Gentoo Video Driver: original Nvidia 340.106 with Gentoo Kernel Patch nvidia-drivers-381.09-v3.patch
Also attached Gentoo .config Kernel config while i have opened the Ticket. But Thank you for having a look into this Problem. I you need any assistance or ssh access to my Laptop System, feel free the contact me and I'll try to provide it. I have a good backup of my old Gentoo and of my Ubuntu so we can switch between the Os Distris and you can have full access to the System. On both System is a full compiler suite. -- 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/1768152 Title: Brightness controll doesn't work - Samsung R560 Status in linux package in Ubuntu: Confirmed Bug description: Hi, I just migrated from Gentoo Linux to KUbuntu 18.04 LTS. Now I noticed that brightness control doesn't work in Ubuntu (FN Keys show KDE Dialog Brightness changed but display stays at full Backlight). Even writing to /sys/class/backlight/acpi_video0/brightness doesn't change the brightness level. In Gentoo everything was working fine, display backlight responded to KDE and/or to /sys/class/backlight/... . As I now I had a bug Ticket at Kernel org with user Tux12Fun an it was implemented long time ago into the Kernel Main Line. But I can't find the Ticket on Kernel.org now :-( So I try to provide all the information i can collect from the old installation. Hardware: Samsung R560 Laptop Model: NP-R560-AS05DE Gentoo Kernel: linux-4.4.67-gentoo Gentoo Video Driver: original Nvidia 340.106 with Gentoo Kernel Patch nvidia-drivers-381.09-v3.patch Ubuntu Kernel: 4.15.0-20-generic #21-Ubuntu SMP Tue Apr 24 06:16:15 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux Ubuntu Video Driver: NVidia 390.42 root@rechner4:/# lsb_release -rd Description: Ubuntu 18.04 LTS Release: 18.04 lspci -vvv attached. Kernel Config of my old Gentoo attached. I hope we can mange it to get backlight control working on Ubuntu as it's nearly inpossible to work with full backlight at night :-( Thank you for your work. Best regards form Bavaria Tux12Fun (Thomas) --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: thomas 1205 F.... pulseaudio CurrentDesktop: KDE DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2018-04-30 (0 days ago) InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: SAMSUNG ELECTRONICS CO., LTD. R560 NonfreeKernelModules: nvidia Package: linux (not installed) ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-20-generic root=UUID=7ca20d22-7baa-4892-a8a3-cd0e628190bc ro quiet splash vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions: linux-restricted-modules-4.15.0-20-generic N/A linux-backports-modules-4.15.0-20-generic N/A linux-firmware 1.173 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 12/09/2008 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: 09LA.7027.20081209.JJC dmi.board.name: R560 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr09LA.7027.20081209.JJC:bd12/09/2008:svnSAMSUNGELECTRONICSCO.,LTD.:pnR560:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnR560:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A: dmi.product.name: R560 dmi.product.version: Not Applicable dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1768152/+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
