thx man, issue solved. Appreciate the support
On Tue, 11 Aug 2020 at 00:05, Alex Hung <1890...@bugs.launchpad.net> wrote: > dmesg shows "video.use_native_backlight=1" is used. This kernel > parameter is no longer available. You can replace with "acpi_video" > > acpi_backlight= [HW,ACPI] > acpi_backlight=vendor > acpi_backlight=video > If set to vendor, prefer vendor specific driver > (e.g. thinkpad_acpi, sony_acpi, etc.) instead > of the ACPI video.ko driver. > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1890873 > > Title: > no intel_backlight file > > Status in linux package in Ubuntu: > Confirmed > > Bug description: > i am a noob, can't find the intel_backlight > > ProblemType: Bug > DistroRelease: Ubuntu 20.04 > Package: linux-image-5.4.0-42-generic 5.4.0-42.46 > ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44 > Uname: Linux 5.4.0-42-generic x86_64 > NonfreeKernelModules: nvidia_modeset nvidia > ApportVersion: 2.20.11-0ubuntu27.6 > Architecture: amd64 > AudioDevicesInUse: > USER PID ACCESS COMMAND > /dev/snd/controlC0: kira 1573 F.... pulseaudio > /dev/snd/controlC1: kira 1573 F.... pulseaudio > CasperMD5CheckResult: skip > CurrentDesktop: ubuntu:GNOME > Date: Sat Aug 8 13:32:31 2020 > InstallationDate: Installed on 2020-08-01 (6 days ago) > InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 > (20200423) > Lsusb: > Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub > Bus 001 Device 002: ID 04f2:b64f Chicony Electronics Co., Ltd HD User > Facing > Bus 001 Device 003: ID 8087:0029 Intel Corp. > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > MachineType: Acer Nitro AN515-54 > ProcFB: 0 EFI VGA > ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-42-generic > root=UUID=53af6216-e431-4dba-8753-614cbe9fa7ca ro nomodeset_ quiet splash > video.use_native_backlight=1 vt.handoff=7 > RelatedPackageVersions: > linux-restricted-modules-5.4.0-42-generic N/A > linux-backports-modules-5.4.0-42-generic N/A > linux-firmware 1.187.2 > SourcePackage: linux > UpgradeStatus: No upgrade log present (probably fresh install) > dmi.bios.date: 05/11/2020 > dmi.bios.vendor: Insyde Corp. > dmi.bios.version: V1.30 > dmi.board.asset.tag: Type2 - Board Serial Number > dmi.board.name: Octavia_CFS > dmi.board.vendor: CFL > dmi.board.version: V1.30 > dmi.chassis.type: 10 > dmi.chassis.vendor: Acer > dmi.chassis.version: V1.30 > dmi.modalias: > dmi:bvnInsydeCorp.:bvrV1.30:bd05/11/2020:svnAcer:pnNitroAN515-54:pvrV1.30:rvnCFL:rnOctavia_CFS:rvrV1.30:cvnAcer:ct10:cvrV1.30: > dmi.product.family: Nitro 5 > dmi.product.name: Nitro AN515-54 > dmi.product.sku: 0000000000000000 > dmi.product.version: V1.30 > dmi.sys.vendor: Acer > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1890873/+subscriptions > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890873 Title: no intel_backlight file To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1890873/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs