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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