retina   7350

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iPhone 8 screen resolution vs. screen technology | iMore
Confession: I hadn't even been considering the screen resolution of iPhone 8 (D22). I'm no stranger to such considerations. I went more than a little overboard running the resolution options on a 4-inch iPhone back before iPhone 5 shipped. Likewise imagining the resolution of a 5-inch iPhone before iPhone 6 and iPhone 6 Plus shipped.
This year, though, John Gruber kicked my ass. From Daring Fireball:
Using similar logic, and considering all of the rumors and purported part leaks, I have a highly-educated guess as to the dimensions of the D22 display:
5.8 inches, 2436 × 1125, 462 PPI, true @3x retina with no scaling.
I think the reason I didn't do the math this year is is that, back then, scaling iOS to different screen sizes was a great unknown. It had been bound by pixel perfection to the original size, then the original size plus a row, for years. Breaking those bonds was a big problem for them to solve and imagining how Apple might solve big problems excites me.
iphone8  rumor  retina 
10 days ago by rgl7194
Daring Fireball: Conjecture Regarding the Precise Details of the iPhone D22 Display Resolution
Thanks to last week’s inadvertent release of an unredacted build of HomePod’s version of iOS, we know some things that we didn’t know before. One of those things is that the new edge-to-edge iPhone is codenamed D22, and that the OS explicitly supports an iPhone display with hardware resolution of 2436 × 1125 pixels.
For reference, all 4.7-inch iPhones to date (6, 6S, and 7) have a display resolution of 1334 × 750, at 326 PPI. All Plus models to date have a display resolution of 1920 × 1080, at 401 PPI. Apple publishes these numbers on the iPhone tech specs comparison page.
iphone8  rumor  daring_fireball  retina 
12 days ago by rgl7194
Why is WindowServer consuming 48% of my CPU? | Official Apple Support Communities
(On reducing WindowServer’s CPU usage:)
"I had a similar issue on Sierra, and after some testing it seems setting the scaling back to 'Default for display' improved it by 15%-25%.   I am running dual GTX 970s on 6 monitors ( 6x Samsung U28D590 4K with NVIDIA web drivers on Sierra 10.12.3), and I am not sure why any scaling would have anything to do with software processes, rendering should all be done on the hardware, but there is significant improvement after changing it."
windowserver  2017  mac  cpu  scaling  retina  monitors  macos 
12 weeks ago by handcoding
Designer's guide to DPI
A guide to multi-DPI and platform design
design  guide  reference  resolution  dpi  retina  ppi  screen  ui  webdesign 
may 2017 by speckz

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