Is KDE desktop able to automatically fit the constantly changing display size?

[LAI YONG YANG]

I didn't try xrandr, I think it's quite inconvenient to do so because 
the remote session window can be arbitrarily resize to any resolution.

Following your instruction, I checked xserver information in KCM after 
resizing the remote session window, I found KDE do be aware of current 
display resolution. Windows adjust their position and size, but desktop 
background and widgets didn't react to this size change.

If I shrink the remote display size to resolution like 1024x728, widgets 
will become invisible because they are outside the display area. Those 
widgets,  they did not disappear, they showed up again after the session 
window were restored to larger size.

In my scenario, xfce just worked fine, it perfectly automatically fit 
the remote session window, so I think it is possible for kde developing 
group to tackle this problem?
------ Original Message ------
From: "René J.V. Bertin" <rjvbertin at gmail.com>
To: kde at mail.kde.org; "m at yylai.xyz" <m at yylai.xyz>
Sent: 2/5/2020 4:39:18 PM
Subject: Re: Is KDE desktop able to automatically fit the constantly 
changing display size?

>On Friday May 01 2020 09:16:24 m at yylai.xyz wrote:
>>Hi everyones,
>>
>>I am running KDE plasma with a remote X11 server. If I resize the remote
>>display, expand it for example, desktop and panel will not adjust their
>>size as expected
>
>Normally you don't resize remote displays, you change their resolution ;)
>
>My Plasma4 desktop adapted perfectly well to changes in monitor size, and I think what little experience I have with Plasma5 desktops (in a VM) is the same, though it may have taken multiple visits to the display/monitor KCM to get that to work. In particular, I am pretty certain I had to use xrandr to add the desired screen resolution to the list of available options because I think that doesn't (always) happen automatically.
>
>I don't have experience getting a remote or a VM session to react to display changes made by resizing the session's window on the client; for VNC I just stick with whatever resolution the host uses, and with VMs I set the resolution via the VM software. If you're trying to do this kind of thing I'd suggest you check in the display KCM if KDE sees your current screen resolution and if it isn't somehow set to use a fixed resolution.
>
>BTW, what happens when you resize down to a standard resolution like 1024x728?
>
>R.