On 06/26/2017 04:25 PM, Unman wrote:
> 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.
>
If you're using XFCE and you have the Power Management tray icon in your
Notification Tray, you can also right-click on it and it'll bring up a
screen brightness slider that you can adjust, if your machine supports
it (for example, it doesn't appear on my desktop but it does on my
notebook).
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