this post was submitted on 05 Sep 2023
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I run a dual monitor on X11 and never understood why people have issues with it? I'm by no means a Linux expert and I do run in Nvidia, I run different refresh rates. Can someone explain it to me?
If your monitors are different DPIs then multimonitor X11 is awful.
If you're questioning why anyone would have monitors with different DPIs remember that laptops exist.
Even without considering laptops, I can already imagine quite a few circumstances where someone might want monitors of differing DPIs. I've actually thought sometimes of getting a smaller monitor I can have off to the side that I display a browser window containing mostly text on when I'm playing videogames or working in something like Blender or Aseprite; yknow, for referencing a guide, wiki, or manual or something. I don't even have a super high desire for a multi-monitor setup outside of that.
I run 2 monitors with different DPIs and X11 works without an issue. Can't say the same about wayland where scaling still has so many bugs it's just unusable.
You can't set 2 different DPIs for the monitors on X11. On one monitor everything is just going to be bigger than the other. Depending on the DPI difference it can be basically unusable.
You can configure software rescaling using xrandr and some scripts... But that can cause a massive amount of jank with anything that requires a degree of pixel accuracy
Valid point. I forgot about 4K... I run just 125% scale so it doesn't bother me at all. Well it's kinda funny that both protocols are broken in that regard.
I feel like taht's often the case but Wayland as the newer protocol usually has the correct architecture with a early implementation while X11 has hard to fix architectural problems. I am a opponend of "whatever works for you" and I think that will be Wayland for most people fairly soon if it isn't already but in case it actually isn't I wouldn't recommend it because, well, it doesn't work properly for you.
I do similar. For laptops and docks, especially if they change setups it can be a pita (though you just need to copy files around).
Also the DE monitor config (ie that you use to login) is logically different to a users x config. So you gotta copy that over to make sure the primary monitor etc is right.
x11
2 monitors 144hz, 1 TV 120hz.
Nothing on any monitor can render at higher than 120hz
Play movie on any one screen, other screens can't render anything at higher than 24fps
Wayland works fine