Bug 366227

Summary: System Settings under Display and Monitor does not scale viewport
Product: [Applications] systemsettings Reporter: Michael Butash <michael>
Component: kcm_kscreenAssignee: kscreen-bugs-null <kscreen-bugs-null>
Status: RESOLVED FIXED    
Severity: normal CC: nate, plasma-bugs-null
Priority: NOR    
Version First Reported In: 5.14.3   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Screen shot of System Settings with monitors extending past viewport

Description Michael Butash 2016-07-29 03:14:07 UTC 
When I access Display and Monitor from System Settings with 3x 48" 4k TV's, a generally small window, the monitor representation is far too huge for the viewport used to rearrange the displays.  They need to scale with the dpi to represent a usable configuration.  I'll attach an image of what I mean, it's just a UI bug for abnormal sized displays vs. dpi, but makes reordering the displays a gigantic pain, requiring me to open the settings window to like 3500x1200 to reorder things comfortably.

Reproducible: Always

Steps to Reproduce:
1. Install multiple 4k tv (3x used in test bed)
2. Open "System Settings", navigating to "Display and Monitors"
3. Observe abnormally giant representation of monitors taking up 90% of the viewport, making it impossible to reorder displays without expanding the settings window to gigantic proportions.

Actual Results:  
It requires resizing of the window to almost a full display width of 3500 pixels + to manage moving displays comfortably vs. the display scaling itself according to the viewport and dpi.

Expected Results:  
Smaller representations of 3x monitors scaled into the viewport to reorder them comfortably within the given pixel space available.  Monitors x Quantity Wide should always equal less than the viewport, scaled to the space available, or resize itself appropriately for the user to manage this.

This is more dpi optimization needed with changing usages.  I am using 3x 48" hdtv's as my monitors now, something of a corner case, but I'd imagine this exacerbated with current generation 4k displays in 24-34" desktop displays shipping @ 4k too.
Comment 1 Michael Butash 2016-07-29 03:17:32 UTC 
Created attachment 100367 [details]
Screen shot of System Settings with monitors extending past viewport

Here's an image of my settings with the mega default display.  I can't zoom in or out to manage this without extending the window to be gigantically wide.
Comment 2 Sebastian Kügler 2016-10-16 22:00:33 UTC 
This doesn't have anything to do with the dpi. The viewport is supposed to resize the individual outputs so that it always fits. It seems to still run out of bounds here, though. I'll try to recreate your configuration, so it can be tested against. We're currently reworking the UI here, so I'll keep your configuration in mind when testing the changes.
Comment 3 Nate Graham 2022-11-10 21:51:04 UTC 
This has been fixed for some time, at least 3 years.