[qubes-users] screen brightness

[haaber]

I run Q4 on a dell notebook.The "screen brightness" key-combination 
leans qubes to show a screen brightness icon, but I cannot change 
brightness at all.Is this maybe a setting somewhere? Especially in 
evening hours this is really a pain in the eye ...  Bernhard


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Re: [qubes-users] Screen brightness

[Unman]

On Mon, Jun 19, 2017 at 06:20:14PM -0700, Bob wrote:
> Is there any way to turn down screen brightness, either via terminal or 
> system settings? The closest thing I can find is System Tools -- Power 
> Manager --Display. That gives options regarding adjusting brightness after 
> inactivity, but I am wondering if it's possible to set the default brightness?
> 
> Thanks.
> 

A quick search ("fedora change brightness") throws up a number of
solutions if you cant do this with  monitor or Function keys -
suggestions include installing xbacklight and booting with various
acpi_backlight options. I would try those first.
I don't think there's anything Qubes specific here - you need to find a
solution that works with Fedora and (if you need to install software)
install it in dom0, since that provides the graphics.
To install software in dom0 you use the 'qubes-dom0-update' command,
which needs to be run as root. This will download the software in the
updateVM and then transfer it in to dom0 - this is necessary because
dom0 has no networking.

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[qubes-users] Screen brightness

[Bob]

Is there any way to turn down screen brightness, either via terminal or system 
settings? The closest thing I can find is System Tools -- Power Manager 
--Display. That gives options regarding adjusting brightness after inactivity, 
but I am wondering if it's possible to set the default brightness?

Thanks.

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