Hi, currently I have the option enabled, that x11 apps scale themselves.
The way this seems to be implemented is that xwayland assumes a higher resolution than the actual screen and increase the dpi.
% xrandr | rg -A1 connected
DP-2 connected 3840x2160+4096+72 (normal left inverted right x axis y axis) 632mm x 360mm
3840x2160 59.98*+
--
DP-3 connected primary 4096x2304+0+0 (normal left inverted right x axis y axis) 697mm x 393mm
4096x2304 143.96*+
% xrdb -query | rg dpi
Xft.dpi: 153
while this works in general, I donât actually want it. DP-3 is a 1440p screen here. DP-2 Resolution is correct.
When I change the option to force scaling, the DP-3 resolutions seems to be correct, but DP-2 gets a lower resolution and then scaled up by the system (So everything is blurry)
What I want, is that both screens have the correct, actual resolution, even if the dpi is wrong. The few X11 apps I use all have in app settings to scale themselves manually, and those that donât, I donât want to scale.
Is there a way I can completely disable any âsmartâ scaling or dpi stuff for xwayland?
The main issue here is games, that render at a way higher resolution if I select windowed mode and then get scaled down, which decreases fps and increases input lag massively.
Hi - yeah, if youâre using screen scaling with multiple monitors that have different natural resolutions or DPI, then unfortunately as far as I know X11 and XWayland canât really handle that as gracefully as native Wayland applications. Some of the context here might be helpful: What's up with scaling of X11 applications on Wayland?
I dont want scaling for X applications. The Wayland stuff works fine. I was just wondering if I can disable the âbest effortâ tries of xwayland to scale X stuff
Others will likely have a lot more understanding than I doâŚbut, I think thatâs basically what you initially had with X11 applications set to âApply scaling themselvesâ? In that case, the system was just telling the applications about the screen attributes - applications were then figuring out how to render based on those attributes.
You might just be running into some fundamental limitations of X11/XWayland with mixed-resolution, mixed-DPI display setups - as I understand it, XWayland only has one DPI value for applications to render to, and your displays have two different DPI values, so at least something seems bound to look âoffâ in one place or another (as you mentioned the 2nd monitor having blurry-looking X11-based applications).
yes, I know. I wouldnât mind it looking off. I donât want it scaled tho. if my 4k Monitor has an actual dpi of 153 or sth, but X windows think itâs 96, everything should look smaller, not blurrier
Also would like this to be implemented, as this causes all Steam games to be blurry due to the use of Xwayland, unless running at the scaled resolution.
I have two displays, one with 100% and the second with 125% scaling. The main display I use is the one with 100% scaling. This means that to run games in native resolution at full screen without any blurriness, or in windowed mode without the window size being smaller than needed, I have to either:
Disable the display with the larger scaling
Set the same scaling amount to both displays (doesnât matter if itâs 100% or above/below it)
While itâs not the end of the world to do this before launching any games, itâs still a PITA to enter Display Configuration each time I want to launch a game.
You get mouse capture issues just running Wayland. Splitgate, as well as Fallout 4, and âCS2 running Wayland nativeâ all suffer from mouse capture issues.
Iâve switched back to native X11 for this very reason, as well as the fact that performance when gaming is roughly 20% better regarding certain titles running Nvidia under X11 as opposed to Wayland.
