Linux

64174 readers

235 users here now

From Wikipedia, the free encyclopedia

Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

Rules

Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
No misinformation
No NSFW content
No hate speech, bigotry, etc

Related Communities

Community icon by Alpár-Etele Méder, licensed under CC BY 3.0

founded 6 years ago

MODERATORS

AgreeableLandscape@lemmy.ml

nooter692@lemmy.ml

MarcellusDrum@lemmy.ml

cypherpunks@lemmy.ml

cyclohexane@lemmy.ml

d3Xt3r@lemmy.nz

[Question] (Wayland, KDE Plasma) How can I use another PC as a second monitor? (self.linux)

submitted 3 days ago by user224 to c/linux@lemmy.ml

14 comments fedilink hide all child comments

Idea

Primary laptop will run DE with 1 screen (its own).
Second laptop is to be used as a secondary (extended) monitor for primary laptop.
Both laptops will run Linux.

Tested solutions and their issues

`krfb-virtualmonitor`:

Creates virtual display and runs a VNC server, exactly as desired.
Issue: Slow as hell. FPS become SPF even on 0.3ms 1Gbps point-to-point connection.

KDE Connect virtual display

Creates virtual display and runs an RDP server, exactly as desired.
Issue(s): Really needs that high quality connection to run reasonably well. That isn't much of a problem, I can use a cable. The biggest problem is, no matter the settings, both with Remmina and KRDC the mouse pointer does not show up. Silly issue, but yeah.
Also, the Debian 13 KDE Connect package is too outdated to work with this, but I was able to use it in KDE Neon and Arch.

So, basically what I want exists, just with a major bug. Not seeing the mouse pointer is quite a problem.

Also, at first I hoped to use the already existing "network", my phone's hotspot. I can get 300Mbps and 3ms between phone and client. But between 2 clients? 400ms and with ping I see 1/3 of packets being duplicated.

you are viewing a single comment's thread
view the rest of the comments

[–] just_another_person@lemmy.world 1 points 3 days ago (1 children)

Not sure what you mean about the mouse cursor not showing up. You mean you can interact with the mouse, but just see a cursor? Or no matter which direction you move the mouse the cursor doesn't get there?

You sure after setting up the virtual display you're going through the steps to setup the orientation of monitors?

[–] user224 2 points 3 days ago (1 children)

What I mean is the mouse cursor isn't there when I move it over there. Well, isn't visible. It still interacts with objects.

Same as this person's issue: https://discuss.kde.org/t/show-cursor-on-virtual-display-kde-connect-krdc/43421

[–] just_another_person@lemmy.world 1 points 3 days ago* (last edited 3 days ago)

If I get a minute I'll see if I can replicate, but my initial guesses are:

Hardware cursor mismatch: try disabling hardware acceleration on the client OR see if there is a setting for forcing or disabling hardware cursors
Check the CLI arguments for cursor specific options and mapping to movement. Sometimes there are movement acceleration tweaks that mess things up

Edit: also maybe give this a shot. https://www.azdanov.dev/articles/2025/how-to-create-a-virtual-display-for-sunshine-on-arch-linux