Can hotkeys be added to directly set brightness as 80% or 50% ?

[archisman-panigrahi]

It is suggested in a review (Ubuntu Software Center).

[LordAmit]

You mean specific value or variable change?
For example, if it is specific value, lets say pressing a keyboard shortcut will change the brightness value to 80% no matter what the brightness value before pressing shortcut.
If it is variable change, then that means pressing a shortcut key will change brightness value relatively. For example, if the brightness was 50%, it will be changed to 60%, if it was 40%, it will be changed to 50%, etc.

Anyway, both will require some work to do. Moreover, the shortcuts assignment program across distros is different AFAIK. So it might take a while to do, provided that it is a global shortcut.

However, if it is a program only shortcut (i.e. BC is focused) - then it will be a lot more easier to implement compared to the global keyboard short approach.

[archisman-panigrahi]

Just add program only shortcut.

[LordAmit]

Can certainly be done!

[DavidPerezIngeniero]

In KDE, it is quite easy to set a global shortcut, that calls xrandr with appropiate parameters.

[LordAmit]

Of course, but he was talking about program only shortcut.
If we are talking about global shortcut - I do not know about a unified approach that will allow us to set a xrandr based shortcut across all distros.
If you do, let us know!

[quentin-st]

I think assigning hotkeys to commands is quite widespread across distributions. I think we should focus on "how to set screens brightness using CLI" (either absolute, or relative/incremental) instead of "how to create hotkeys that are cross-distros compatible".

We would then be able to create an API such as

brightness-controller [--screen=<screen>] <value>

With values:

• screen: n/all (n being the screen index; all being the default value if arg isn't specified)
• value: [+/-]p (when using + or -, acts as a relative value ; else as an absolute one)

[LordAmit]

That's a really good suggestion! 👏

[corebots]

would this mean that on a desktop PC with a monitor connected via displayport, you could substitute the on-monitor hw keys with these keyboard shortcuts for brightness adjustment and even more fine-tuned?

[quentin-st]

Yup indeed.
Actually, the hw keys on your monitor doesn't have anything to do with this software. They control your monitor settings, while this software modifies the signal that's sent to your monitor.
Anyway, in the end, you would be able to control your screen brightness using your keyboard.

[corebots]

thank you @chteuchteu i'm happy to hear that :) looking forward to this so much!

[corebots]

Hi please is there any update on using keyboard shortcuts for controlling the brightness settings? thank you!