Screen brightness slider isn't working on Acer Aspire v5 571g

[Александр]

changing the screen brightness does not work when you try to change the slider on the toolbar at the top right

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: gnome-shell 3.26.1-0ubuntu4
ProcVersionSignature: Ubuntu 4.10.0-33.37-generic 4.10.17
Uname: Linux 4.10.0-33-generic x86_64
NonfreeKernelModules: zfs zunicode zavl zcommon znvpair
ApportVersion: 2.20.7-0ubuntu3
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Wed Oct 25 17:10:04 2017
DisplayManager: lightdm
GsettingsChanges: b'org.gnome.desktop.interface' b'gtk-im-module' b"'gtk-im-context-simple'"
InstallationDate: Installed on 2015-08-27 (789 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to artful on 2017-10-25 (0 days ago)

[Daniel van Vugt (vanvugt)]

Thanks for the bug report.

Can you tell us what model laptop you're using?

Also what do you get when you run this command?; ls /sys/class/backlight/

[Александр (gg-shaman888)]

ls /sys/class/backlight/
intel_backlight

aser aspire v5 571g

2017-10-26 7:35 GMT+05:00 Daniel van Vugt <email address hidden>:

> Thanks for the bug report.
>
> Can you tell us what model laptop you're using?
>
> Also what do you get when you run this command?; ls
> /sys/class/backlight/
>
> ** Changed in: gnome-shell (Ubuntu)
> Status: New => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1727310
>
> Title:
> change screen brightness not working
>
> Status in gnome-shell package in Ubuntu:
> Incomplete
>
> Bug description:
> changing the screen brightness does not work when you try to change
> the slider on the toolbar at the top right
>
> ProblemType: Bug
> DistroRelease: Ubuntu 17.10
> Package: gnome-shell 3.26.1-0ubuntu4
> ProcVersionSignature: Ubuntu 4.10.0-33.37-generic 4.10.17
> Uname: Linux 4.10.0-33-generic x86_64
> NonfreeKernelModules: zfs zunicode zavl zcommon znvpair
> ApportVersion: 2.20.7-0ubuntu3
> Architecture: amd64
> CurrentDesktop: ubuntu:GNOME
> Date: Wed Oct 25 17:10:04 2017
> DisplayManager: lightdm
> GsettingsChanges: b'org.gnome.desktop.interface' b'gtk-im-module'
> b"'gtk-im-context-simple'"
> InstallationDate: Installed on 2015-08-27 (789 days ago)
> InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64
> (20151021)
> SourcePackage: gnome-shell
> UpgradeStatus: Upgraded to artful on 2017-10-25 (0 days ago)
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+
> bug/1727310/+subscriptions
>

[Jeff (jeff.v)]

I'm experiencing the same. Acer Aspire S7 392. Worked under 17.04, not under 17.10.

The only way I can change my screen brightness currently is via the command line:

sudo tee /sys/class/backlight/intel_backlight/brightness <<< 200

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 17.10 (artful) reached end-of-life on July 19, 2018.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in and change the bug status to Confirmed.

[Launchpad Janitor (janitor)]

[Expired for gnome-shell (Ubuntu) because there has been no activity for 60 days.]