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AlphaCentauri

macrumors 6502
Mar 10, 2019
291
457
Norwich, United Kingdom
Well AlphaCentauri you are at 4.367 light years from the earth so 2560x1080 is quite understandable ;)
Yeah 👍🤣

I’m using LG 5K2K at home recording studio and the display is approx. 3 feet from me. Any resolution higher than “looks like” 2560x1080 and I can’t read the text well. Or maybe it is because I’m over 50 🧐🤣🤣🤣
 
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joevt

macrumors 604
Jun 21, 2012
6,938
4,241
Well AlphaCentauri you are at 4.367 light years from the earth so 2560x1080 is quite understandable ;)
hmm, Wolf1701 ....
On Stardate 43997, Locutus of Borg (formerly Captain Jean-Luc Picard of the Starship Enterprise NCC 1701-D) did lead the Borg into battle at Wolf 359, a star 7.9 light years from Earth. At that distance the perfect resolution would be something like 1280x540.
 

Wolf1701

macrumors regular
Sep 16, 2006
222
228
hmm, Wolf1701 ....
On Stardate 43997, Locutus of Borg (formerly Captain Jean-Luc Picard of the Starship Enterprise NCC 1701-D) did lead the Borg into battle at Wolf 359, a star 7.9 light years from Earth. At that distance the perfect resolution would be something like 1280x540.
Hit and sunk! (Trekkers stuff)
 
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pen-helm

macrumors member
Jul 9, 2013
38
3
Louisville, Kentucky, USA
Woz uses QuickRes, which sets scaled resolutions. He said "You impress me greatly with this app... I can't tell you how badly I wanted this app from the moment I bought my Retina." Maybe we can enlist his help.

I wrote his people at teamwoz@woz.org. After my second letter they forwarded my concerns to Apple, but didn't bother him with it.

How should we proceed?
 

henrys

macrumors 6502
Feb 14, 2012
261
49
There is no guarantee the next M1X or M2 chip will support more scaled resolutions? I may purchase a second M1 now as I can get a good deal on a 2TB machine, but I wonder what the redesign 14-inch will bring....
 

StevoTheMacDude

macrumors newbie
Jul 13, 2021
17
16
Probably missing something obvious but I gotta ask this question. How is it that the LG 34WK95U-W specs page lists the resulution at 5120 x 2160 and you're supposed to be getting much more screen width than an iMac at 5120 x 2880??? Obviously people purchase the LG UltraWide 5k2k to get more content on the width of the screen, and yet the pixel width of these 2 machines are both 5120. What am I missing?
 

joevt

macrumors 604
Jun 21, 2012
6,938
4,241
Probably missing something obvious but I gotta ask this question. How is it that the LG 34WK95U-W specs page lists the resulution at 5120 x 2160 and you're supposed to be getting much more screen width than an iMac at 5120 x 2880??? Obviously people purchase the LG UltraWide 5k2k to get more content on the width of the screen, and yet the pixel width of these 2 machines are both 5120. What am I missing?
5120x2880 displays have fewer inches (27 inches) and more pixels per inch. They are Retina displays. They are supposed to be used with a drawing scale of like 200% ("looks like 2560x1440"). MacOS does such HiDPI modes by using 4 times as many pixels (twice the height and twice the width) to draw objects.

5120x2160 displays have more inches (34 inches) and therefore larger pixels. They probably work best with a drawing scale of 100% (5120x2160).

In macOS, the highest HiDPI mode you can do on an M1 Mac has a width of 6016 pixels. This is "looks like 3008x1269" in the case of a 5120x2160 display which is drawn using 6016x5076 pixels and scaled down by the GPU to 5120x2160 for output to the display. This is a drawing scale of 170%. Lower drawing scales cannot be done on an M1 Mac unless you switch to non-HIDPI modes. For example, if you want to do 3840x1620 (133% scale), then that's how many pixels you have to use on an M1 Mac, which is then scaled up by the GPU to 5120x2160 for output to the display.

An Intel Mac with AMD GPU can do HiDPI modes of any size up to 16Kx16K ("looks like 8Kx8K" for HiDPI modes) in some cases. In that case, with a 5120x2160 display, an Intel Mac can do "looks like 3840x1620" by drawing 200% into a 7680x3240 frame buffer and scaling that down to 5120x2160. You can imagine that will look better than what the M1 Mac has to do.
 

joevt

macrumors 604
Jun 21, 2012
6,938
4,241
It should be noted that back in the macOS 10.4 and 10.5 days, Macs could do arbitrary scaling between 100% and 300%. I am wondering if that code still exists. If so then it should be a simple patch to replace the 2 factor with a 1.7 or 1.3 factor or whatever the user wants.
 
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StevoTheMacDude

macrumors newbie
Jul 13, 2021
17
16
5120x2880 displays have fewer inches (27 inches) and more pixels per inch. They are Retina displays. They are supposed to be used with a drawing scale of like 200% ("looks like 2560x1440"). MacOS does such HiDPI modes by using 4 times as many pixels (twice the height and twice the width) to draw objects.

5120x2160 displays have more inches (34 inches) and therefore larger pixels. They probably work best with a drawing scale of 100% (5120x2160).

In macOS, the highest HiDPI mode you can do on an M1 Mac has a width of 6016 pixels. This is "looks like 3008x1269" in the case of a 5120x2160 display which is drawn using 6016x5076 pixels and scaled down by the GPU to 5120x2160 for output to the display. This is a drawing scale of 170%. Lower drawing scales cannot be done on an M1 Mac unless you switch to non-HIDPI modes. For example, if you want to do 3840x1620 (133% scale), then that's how many pixels you have to use on an M1 Mac, which is then scaled up by the GPU to 5120x2160 for output to the display.

An Intel Mac with AMD GPU can do HiDPI modes of any size up to 16Kx16K ("looks like 8Kx8K" for HiDPI modes) in some cases. In that case, with a 5120x2160 display, an Intel Mac can do "looks like 3840x1620" by drawing 200% into a 7680x3240 frame buffer and scaling that down to 5120x2160. You can imagine that will look better than what the M1 Mac has to do.
I apologize but I'm still confused. Putting aside the current limitations of the M1's HiDPI scaling and fucusing only on the specs of LG 34WK95U-W vs the 27" iMac Retina screen. Considering they both have 5120 phycial pixes in their width, does this mean that the LG 34WK95U-W is scaling the horizontal at a different percentage than the vertical? I would only buy an ultrawide if I could say, view more channel strips across the width in software like Logic Pro. If a 32 inch wide LG 34WK95U-W and a 23 inch wide 27" iMac have the same physical pixels in width, then I'm guessing the PPI across the width of the LG 34WK95U-W must be very low comparitably speaking?
 

xraydoc

Contributor
Oct 9, 2005
11,004
5,472
192.168.1.1
I apologize but I'm still confused. Putting aside the current limitations of the M1's HiDPI scaling and fucusing only on the specs of LG 34WK95U-W vs the 27" iMac Retina screen. Considering they both have 5120 phycial pixes in their width, does this mean that the LG 34WK95U-W is scaling the horizontal at a different percentage than the vertical? I would only buy an ultrawide if I could say, view more channel strips across the width in software like Logic Pro. If a 32 inch wide LG 34WK95U-W and a 23 inch wide 27" iMac have the same physical pixels in width, then I'm guessing the PPI across the width of the LG 34WK95U-W must be very low comparitably speaking?
The 5K iMac is 5120 x 2880. The 5K2K displays are 5120x2160. Different aspect ratios.
But yes, the 27" 5K display has a much higher PPI than the 34"-40" 5K2K displays. But the higher PPI will result in smaller fonts, so (with a lot of people) size need to be blown up, reducing the apparent desktop space. The bigger 5K2K displays, on the other hand, don't need to be blown up as much, resulting in more apparent desktop space.
 

joevt

macrumors 604
Jun 21, 2012
6,938
4,241
Considering they both have 5120 phycial pixes in their width, does this mean that the LG 34WK95U-W is scaling the horizontal at a different percentage than the vertical?
No. Pixels are always square.

I would only buy an ultrawide if I could say, view more channel strips across the width in software like Logic Pro. If a 32 inch wide LG 34WK95U-W and a 23 inch wide 27" iMac have the same physical pixels in width, then I'm guessing the PPI across the width of the LG 34WK95U-W must be very low comparitably speaking?
Right. PPI is lower on the LG 34WK95U-W.

On the iMac 5K, an object requires more pixels to appear as the same size of an object displayed by the LG 34WK95U-W.

If the user views the displays at the same distance and the UltraWide has similar height as the iMac but has more width (because it's an ultra wide) then it means the ultrawide can draw a similar number of objects vertically but many more objects horizontally. However, the iMac draws those objects using four times as many pixels that are four times smaller so they have more detail or smoothness.
 
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vs40

macrumors member
Jan 9, 2016
74
85
LG OnScreen Control don't seem to work for me on my m1 Aldo I do have the 32UN880
I also have problems with OnScreen Control.
It freezes at start for few seconds and all functions except Screen Split are disappearing.
I can't control brightness/contrast or any other settings with it.
And only "advice" from crappy LG support was "try to reinstall it".
 

flxwng

macrumors newbie
Jul 12, 2021
2
0
Not that I have much hope, but has anyone tried MacOS Monterey Beta 3 yet? Did that change anything scaling-wise?
 

5425642

Cancelled
Jan 19, 2019
983
554
I also have problems with OnScreen Control.
It freezes at start for few seconds and all functions except Screen Split are disappearing.
I can't control brightness/contrast or any other settings with it.
And only "advice" from crappy LG support was "try to reinstall it".
Same issue here. Then it seem to bee there software
 

5425642

Cancelled
Jan 19, 2019
983
554
I also have problems with OnScreen Control.
It freezes at start for few seconds and all functions except Screen Split are disappearing.
I can't control brightness/contrast or any other settings with it.
And only "advice" from crappy LG support was "try to reinstall it".
They have updated OnScreen Control today. Don't know what's changed in it as they never write release notes but if / when someone tries it please report back. I can't try it for a couple of days.
 

Shivani_Gupta

Suspended
Jul 14, 2021
1
0
India
I purchase LG 34 inch ultra wide 5K2K monitor one week ago.Confirming it is part is so good.Display quality is so good for me .I recommended you only purchase Lg product.
 

mario0

macrumors member
Jul 6, 2021
71
19
Of course the 34WK95U is a great monitor but it doesn't work well with M1 Macs.
 

vs40

macrumors member
Jan 9, 2016
74
85
They have updated OnScreen Control today. Don't know what's changed in it as they never write release notes but if / when someone tries it please report back. I can't try it for a couple of days.
They updated the date from 07.07.2021 to 14.07.2021, but app version is the same 4.64 and if you try to install it, you will get this message:

Bildschirmfoto 2021-07-15 um 10.11.55.png

I'm also tried to completely uninstall it and install it new, but still the same problem with disappeared options.


And I'm found this note:

Note: The Monitor Software Update feature of the OnScreen Control is not supported for following models from 1st June 2021.


- 38WK95C, 27UK670, 27BK67U, 32GK850F, 32UK750, 27GL850, 27QN880, 34GN850,


35WN75C, 35BN75C, 35WN73A, 27UK670, 24QP750, 34GN73A, 32GP850, 27GP850,


34WP85C, 34WP88C, 32UP55

My monitor not in the list, but it is bad, they dropped support for some 1-2 years old monitors. You still can buy them new, but they are not supported by LG software anymore 👎
Huge disappointment in LG software support. 🤬
 
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AlphaCentauri

macrumors 6502
Mar 10, 2019
291
457
Norwich, United Kingdom
Of course the 34WK95U is a great monitor but it doesn't work well with M1 Macs.

Of course it works well, as long as one does not want to put square peg in the round hole ;)

To be serious, as long as one is happy with any of the supported HiDPI resolutions (which many of us are) - this is the perfect UltraWide monitor for Mac.
 

5425642

Cancelled
Jan 19, 2019
983
554
They updated the date from 07.07.2021 to 14.07.2021, but app version is the same 4.64 and if you try to install it, you will get this message:

View attachment 1806613

I'm also tried to completely uninstall it and install it new, but still the same problem with disappeared options.


And I'm found this note:



My monitor not in the list, but it is bad, they dropped support for some 1-2 years old monitors. You still can buy them new, but they are not supported by LG software anymore 👎
Huge disappointment in LG software support. 🤬
Wow this was unexpected.... As the site stated 14.07.2021 I thought that it was a new release.
 

mario0

macrumors member
Jul 6, 2021
71
19
Of course it works well, as long as one does not want to put square peg in the round hole ;)

To be serious, as long as one is happy with any of the supported HiDPI resolutions (which many of us are) - this is the perfect UltraWide monitor for Mac.
Definitley not and not for everybody as you supposed

A drawing scale of like 200% ("looks like 2560x1440") leads to huge and big fonts and highest hidpi mode is 3008x1269 which is still drawing scale of 170%. Perfect would be 3840x1620 (133% scale) but it's not possible on M1. Therefore you have to use an Intel Mac.
 
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AlphaCentauri

macrumors 6502
Mar 10, 2019
291
457
Norwich, United Kingdom
Definitley not and not for everybody as you supposed

A drawing scale of like 200% ("looks like 2560x1440") leads to huge and big fonts and highest hidpi mode is 3008x1269 which is still drawing scale of 170%. Perfect would be 3840x1620 (133% scale) but it's not possible on M1. Therefore you have to use an Intel Mac.
I didn’t say “for everybody”, I did say “as long as one is happy with any of the supported HiDPI resolutions”.

You are obviously not happy as your “perfect” resolution is not supported, but many users are happy with it (including myself), that’s all I’m saying.

If all I could work with would be 133% scaling, I would have been unhappy myself, same as you.

I have been using this monitor for a year now, running at HiDPI 2560x1080 with viewing distance of approx. 1m and nothing looks huge on screen for me.

Everyone’s “perfect” scaling is different…
 
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grmlin

macrumors 65816
Feb 16, 2015
1,110
777
I run it at 150% in Windows I think. 200% on this screen or any other 4K 27” screen makes the UI comically huge. It’s not 1990 anymore, I need some real estate.
it’s a damn shame that only Apple seems to understand how resolutions and scaling works and builds displays accordingly. The only resolution I don’t like is the one in the 15” and 16” MacBooks. It should be a retina version of the old high res screen option which was 1650px or something
 
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