Templot Club Archive 2007-2020                             

topic: 2561Admin: Is anyone using 192dpi screen resolution (200% scaling)?
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posted: 27 Oct 2014 19:46

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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I'm intending to upload a new Templot version shortly. :)

This will mean a significant change for Templot in that for the first time I am setting the program to "DPI-aware" in Windows.

This means that on high-resolution screens Windows will no longer perform virtualization scaling from 96dpi, and Templot will have to do its own scaling instead.

The Windows virtualization works quite well for dialogs and controls, but not for line graphics such as the template drawings on the trackpad in Templot.

It has been several weeks work to go all through Templot and scale everything for 120dpi and 144dpi but I believe I am now there. However I have not yet done 192dpi, so I need to know if anyone is using such a high dpi setting -- for example on high-end laptops such as the Lenovo Yoga 2 Pro which has a native screen size of 3200 x 1800, see:

 http://shop.lenovo.com/gb/en/laptops/lenovo/yoga/yoga-2-pro/

If you are using such a computer with the screen set to 192dpi (200%) please let me know. The next Templot update may not look too good on your screen, but I can explain how to revert to the previous Windows virtualization until I can make the necessary changes in Templot.

Unfortunately I can't possibly buy every type of computer just to test Templot, so I do need to rely on user feedback. I'm still a bit miffed that no-one warned me about the poor trackpad graphics on the Microsoft Surface tablet at the default 144dpi  -- which is the reason I have been making these changes.

regards,

Martin.

posted: 28 Oct 2014 14:04

from:

Matt M.
 
Australia

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HI Martin,

15" Retina MacBook Pro (220 ppi) using Windows 7 in Bootcamp.
I believe that the display drivers in Bootcamp allow for the grouped
4 pixels used in Retina with the fuzzy results if not allowed for.
Particularly with raster images.

Can always throw across to older big display.

I'll let you know how it goes when I get a chance.

Matt M.

posted: 28 Oct 2014 14:31

from:

Charles Orr
 
Leicester - United Kingdom

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Hi Martin,
For the record I've just started using an ultra-wide (34" LG UM95 on  displayport) monitor.

The screen resolution is 3440 x 1440.

Templot displays beautifully on this monitor - the definition is breath taking.  :) 

I've not had to change any of the Windows 7 screen dpi settings for this new monitor.

I'll let you know what happens with the new version of Templot.

Best regards
Charles

posted: 28 Oct 2014 15:02

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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Matt M. wrote:
15" Retina MacBook Pro (220 ppi) using Windows 7 in Bootcamp.
I believe that the display drivers in Bootcamp allow for the grouped
4 pixels used in Retina with the fuzzy results if not allowed for.
Particularly with raster images.
Hi Matt,

Thanks. Not being a Mac person I'm a bit puzzled by "grouped 4 pixels with fuzzy results if not allowed for"? :?

Just to clarify, I think your 220ppi is the physical pixel density of the screen?

I'm referring here instead to the virtual dpi (dots per inch) setting which Windows uses.

(Nominally to scale fonts, where 1pt = 1/72nd of an inch. So a 12pt font at 96dpi would be displayed at 96 x 12 / 72 = 16 dots high.)

Currently Windows uses 4 pre-set virtual dpi settings (custom settings are also possible):

2_280950_420000000.png2_280950_420000000.png

100% = 96dpi the traditional default setting on Windows up to Windows XP.

125% = 120dpi, preferred by many users on Windows7.

150% = 144dpi, the default setting on the latest high-definition screens.

200% = 192dpi, the default on ?

The next version of Templot should work fine on the first 3 settings, although some things may be a different size from previously.

Perhaps you could go to Control Panel > Display and report which setting you are using on Bootcamp/Windows7 ? Thanks.

regards,

Martin.

posted: 28 Oct 2014 15:12

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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Charles Orr wrote:
Templot displays beautifully on this monitor - the definition is breath taking.  :) 

I've not had to change any of the Windows 7 screen dpi settings for this new monitor.

I'll let you know what happens with the new version of Templot.
Hi Charles,

Many thanks. See my reply above to Matt.

Perhaps you could also go to Control Panel > Display and report which setting you are using on Windows7 with such a high-end screen?

As far as I know (getting definitive information is a real battle of wits) Windows 7 uses native sizes up to 120dpi and virtualization on non-dpi-aware programs above 120dpi.

(Windows Vista used virtualization on anything above 96dpi, hence the many complaints of fuzzy screens on Vista. Windows XP used native sizes throughout.)

Thanks again,

Martin.

posted: 28 Oct 2014 17:35

from:

Charles Orr
 
Leicester - United Kingdom

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Hi Martin,
I'm currently using 96 dpi (default).

I have good reading vision  :) so this is OK for me.

The 120 dpi setting is OK as well.
Best regards
Charles


posted: 29 Oct 2014 00:38

from:

Matt M.
 
Australia

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Hi Martin,

I'm still trying to get my head around the issues of hi-res displays as well.
Not been a problem till now. New computer as the old one is showing
signs of losing the graphics card. 7 years old and considered vintage.

Just getting up and running as there were problems with the transfer,
adjusting OS X 10.9 ‘Mavricks’ to work the way I wanted it to and
a weeks delay as I found a new bug in the OS that required a
clean install and testing with phone calls and emails with Apple for a week.

Yes the 220 ppi is the pixel density for a 15" Retina screen.
As I understand it, the density changes with regard to screen size and
optimum viewing distance, (Considered to be 21” or 51 cm on the 15” screen)
using a pixels-per-degree parameter.

All ‘high dpi’ devices double or quadruple the number of pixels
used to provide the same result as a 72 dpi image.

The Retina screens, (which I am led to believe are above 4K resolution), clump
four pixels together and they act as one individual unit.

This can lead to bitmap/raster images to become blurry if not originally drawn to
compensate for scaling.

But I assume you would be more up-to-date on the issues with various types
of pixel measurement and realisation than I am. I have some reading to do.

The default setting is 150% / 144dpi in Windows 7 running in Bootcamp on
the 15" Retina MacBook Pro. The 96dpi setting is so small as to be unreadable and
the 120dpi setting is not much better being a strain to read.

Currently the the display settings are butted up to the top of the scale
being 2880 x 1800 for the 15" Retina, (currently running scaled to look like 1680 x 1050 in
OS X side), and 2560 x 1440 for the 27" Thunderbolt screen, (the same on OS X).

As you can imagine that gives some problems with continuity across the
pair in 'extended' mode.

(On the Apple OS the second display is treated as a stand alone desktop.
No crossing the boundary. Your window is either in one or the other.
Also they move across display to display from opposite sides of the screen.
Apple on the left, Windows on the right. Have to see if there is a setting for that).

You also have to allow for the display drivers that Bootcamp loads for the
Retina system to work with Windows 7.

I haven’t had time to play around with this yet. But will as the 27” display is not
very good with these settings. Very jagged, especially when zoomed out.

Give me a week and I will see what works best across the two units.

Regards, Matt M.



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