Bug 485753

Summary: Brightness up/down keys' steps could be smaller in low value range
Product: [Plasma] plasmashell Reporter: Sin Jeong-hun <typingcat>
Component: Power management & brightnessAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: wishlist CC: cwo.kde, kdedev, natalie_clarius, nate
Priority: NOR    
Version First Reported In: 6.2.4   
Target Milestone: 1.0   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Sin Jeong-hun 2024-04-18 19:22:35 UTC 
In Plasma Desktop 6.0, pressing the brightness key changes the brightness level by 5% each.  The problem is that in a dark environment, when the monitor's brightness is very low, 5% is too big of a step. In the low brightness range, even 1% change makes a noticeable difference. That is, something like 0% is too dark but 5% is a bit too bright. I can use the mouse, click the brightness icon on the system notification, and drag the slider to set values like 3%, but pressing the keys is more convenient.

So, I wonder what if pressing the brightness keys changes the value by 1%, if the current monitor brightness is below 5% or 1-digit.
Comment 1 cwo 2024-09-18 15:55:29 UTC 
Thank you for this feature request!

It does sound like a reasonable suggestion, and I've wanted something in the middle of lowest and second lowest myself.

A better approach to achieve this might be to have the scale in perceptual space, rather than absolute space, so that the changes correspond more closely to their effect on human perception; see bug 448459.

Moving to the powerdevil component, which handles changing screen brightness.
Comment 2 TraceyC 2025-03-06 18:33:29 UTC 
This does seem like a reasonable request
Comment 3 Nate Graham 2025-06-17 19:17:19 UTC 
Let's just make it configurable like the volume step is. Marking as a duplicate of Bug 443213.

*** This bug has been marked as a duplicate of bug 443213 ***