Backlight control does not work, but there are entries in /sys/class/backlight

Bug #1185303 reported by Denis Lobanov
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
acpi (Ubuntu)
New
Undecided
Unassigned

Bug Description

Backlight control does not work, but there are entries in /sys/class/backlight

But I can manipulate by brightness over /sys/class/backlight/intel_backlight/brightness file.

Ubuntu version 13.04 amd64
Notebook ASUS UL50VT, this notebook has 2 video cards.

I have not installed proprietary driver for video card because it does not work correctly (I could not turn on any effect).

echo 8 > /sys/class/backlight/intel_backlight/brightness command changes brightness.

Revision history for this message
Denis Lobanov (dulobanov) wrote :
Revision history for this message
Ubuntu Foundations Team Bug Bot (crichton) wrote :

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1185303/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

tags: added: bot-comment
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Denis Lobanov (dulobanov) wrote :

Den@DLobanov:~$ xprop WM_CLASS
WM_CLASS(STRING) = "Plasma", "Plasma"
Den@DLobanov:~$

affects: ubuntu → acpi (Ubuntu)
Revision history for this message
Denis Lobanov (dulobanov) wrote : Re: [Bug 1185303] Re: Backlight control does not work, but there are entries in /sys/class/backlight

Hello,

Required information was added

Best regards,
Denis Lobanov

On 29 May 2013 08:21:00 you wrote:
> Thank you for taking the time to report this bug and helping to make
> Ubuntu better. It seems that your bug report is not filed about a
> specific source package though, rather it is just filed against Ubuntu
> in general. It is important that bug reports be filed about source
> packages so that people interested in the package can find the bugs
> about it. You can find some hints about determining what package your
> bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage.
> You might also ask for help in the #ubuntu-bugs irc channel on Freenode.
>
> To change the source package that this bug is filed about visit
> https://bugs.launchpad.net/ubuntu/+bug/1185303/+editstatus and add the
> package name in the text box next to the word Package.
>
> [This is an automated message. I apologize if it reached you
> inappropriately; please just reply to this message indicating so.]
>
> ** Tags added: bot-comment

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