Comment 3 for bug 1846676

Hi Po-Hsu,

Thank you very much for your reply.

No, I do not have NVIDIA graphic card, I only have an Intel integrated graphic card.

Liwei

> On Oct 6, 2019, at 10:47 PM, Po-Hsu Lin <email address hidden> wrote:
>
> Do you have a NVIDIA graphic card on your laptop? (check it with "lspci" command in a terminal)
> If so, please try to install the proprietary video driver first to see if this can solve your problem.
>
> ** Changed in: linux-signed-hwe (Ubuntu)
> Status: New => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1846676
>
> Title:
> screen brightness cannot be adjusted
>
> Status in linux-signed-hwe package in Ubuntu:
> Incomplete
>
> Bug description:
> Changed the grub to acpi_backlight=vendor was not working. No file
> showed under ls /sys/class/backlight
>
> Laptop Dell inspiron-3593
>
> ProblemType: Bug
> DistroRelease: Ubuntu 18.04
> Package: linux-image-5.0.0-29-generic 5.0.0-29.31~18.04.1
> ProcVersionSignature: Ubuntu 5.0.0-29.31~18.04.1-generic 5.0.21
> Uname: Linux 5.0.0-29-generic x86_64
> ApportVersion: 2.20.9-0ubuntu7.7
> Architecture: amd64
> CurrentDesktop: ubuntu:GNOME
> Date: Fri Oct 4 00:21:51 2019
> InstallationDate: Installed on 2019-10-03 (1 days ago)
> InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
> SourcePackage: linux-signed-hwe
> UpgradeStatus: No upgrade log present (probably fresh install)
>
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