On Mon, 2019-07-29 at 13:21 -0400, Jonathan Behrens via arch-general wrote:

On Mon, Jul 29, 2019 at 12:07 PM Yurii Kolesnykov

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wrote: Hello archers, I’m looking to buy "24 4K monitor, the resolution is seems to be as twiceas FullHD, but I don’t wan’t to use it as 2x, since I have bad eyes and doscaling of fonts across all desktops on my current "24 FullHD monitoranyway. But I didn’t tried a factorial DPI yet on the old one, since itdefinitely will look blurry. So I want to get some suggestions from community. Does Factorial screenDPI works good now across KDE and GNOME? On Arch Wiki I found onlyinformation on factorial DPI in GNOME. I know that macOS supports it wellsince last fall. Had anyone tried a factorial whole screen DPI? Or it will be better tostay as I’m now, just set 2x DPI for whole screen, and manually adjust fontin every desktop/app/os?

I've experimented some with display scaling for HiDPI monitors on GNOME.For good looking fractional scaling, I found that l needed to use nativewayland applications and that things using XWayland were blurry. This wasfine for all the main GNOME applications (I didn't try KDE), but I hadproblems with Firefox and Emacs. Now I just set everything to 2x scalingand then zoom out when I want to fit more text on the screen. Another pointto consider is that regardless of whether you do fractional scaling, you'llhave to run wayland if you have multiple monitors and want to use thedifferent scaling factors on them. I also didn't quite understand your comment about not wanting 2x scaling.If normal 1080p is hard to see, do you plan to run with 1.5x scaling anduse even more font scaling or are you thinking of picking something like2.5x scaling? Personally it sounds like you'd be better off trying to get alarger monitor than one with super high DPI. Jonathan

I am using a dual-screen setup with a regular full-hd and a 4k. To adjust the 4k to a similar resolution as the full-hd I played a lot with randr and fractional scaling. The most stable and best looking solution I came up with: I run the 4k screen not at 4k but at a lower resolution. The screen does an upsampling. This solved many issue and foremost it reduces the rendering effort: 4k rendering and downscaling puts unnecessary pressure on your CPU/GPU. Modern screen should be easily able. My 4k run at lower resolution does not show any fragments. Furthermore I own a 13" laptop that natively runs at 1440p. Since running it at full-hd, battery lasts much longer and system hiccups got reduced a lot. A higher resolution on a 13" is a waste. The screen looks great at full-hd with upsampling. regards, ente