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Has anyone here tried 1440x810 on their 3K (2880 x 1620) screen?

2016-03-05, 9:48 AM

Hello

 

I'm about to order a P50s but I'm having a hard time deciding whether to get the FHD or 3K screen.

 

Has anyone here tried 1440x810 on their 3K screen? I'm thinking that if it looks sharp like it does on native resolution I might go with that and leave scaling at 100%. My "old" eyes can't read small text but I do want my big letters to look sharp, hence the thought of running the 2880x1620 panel at 1/4 resolution 1440x810. I just don't know if the p50s will handle it pixel perfect or if it would still look blurry as it does when running non-native resolutions.

 

Brgds...   /Thomas

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553 Posts

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Re: Has anyone here tried 1440x810 on their 3K (2880 x 1620) screen?

2016-03-06, 19:26 PM

I don't have a 3K screen, but on 4K screens like P70 (which isn't sold with 3K screen in North America) setting 4K display resolution to 1920x1080 produces proper, sharp, pixel-doubled graphic images. This can be easily tested by using bitmaps from http://www.lagom.nl/lcd-test/sharpness.php + a digital camera or magnifying glass.

 

So overall, provided the video card driver can be convinced to set the resolution, it works OK. E.g. P70+4K is perfectly usable as 1080p display for images, videos etc with no consequences.

 

However, with rendering text, it's not quite like 1080p because of ClearType. ClearType treats 1920x1080 LCD as 5760x1080 pixel elements screen, and achieves extra visual text clarity by dealing with subpixels. Which, of course, does not work quite the same with pixel-doubling, producing a bit fuzzy appearance of text.

 

That said, the text rendering is perfectly serviceable, readable etc. Just text on a real 1080p looks a bit better.

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94 Posts

01-02-2016

Switzerland

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Re: Has anyone here tried 1440x810 on their 3K (2880 x 1620) screen?

2016-03-05, 17:34 PM

Hi,

I have a P70 3k.

I just tried 1440x900 (there is no 1440x810 for P70) at 100%.

It doesn't look good.

I would personally not do it.

Regards,

Sepy

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Re: Has anyone here tried 1440x810 on their 3K (2880 x 1620) screen?

2016-03-05, 18:42 PM

Thank you Sepy for testing it :-)


If 1440x810 is missing in the resolutions list there's an easy way to add it as a custom resolution.

If you have time and don't mind testing it, here's how you do it.

 

1.Right-Click the Windows desktop and select Graphics Properties (the selection has an Intel Logo next to it).
2.Select Display
3.Select Custom resolutions (it should be visible to the left or as a drop down menu at the top left)
4.A dialog box will warn you to be careful when adding custom resolutions, click yes. (we will not enter a crazy resolution, just 1440x810 which the adapter can handle).
5.Enter the numbers in the boxes: Width:1440 , Height:810 , Refresh rate: 60 and click the Add buttom at the bottom right.
6.Now it should be possible to select 1440x810 on the screen where you normally select resolution.

 

Brgds...   /Thomas

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Re: Has anyone here tried 1440x810 on their 3K (2880 x 1620) screen?

2016-03-05, 22:38 PM

Sorry Thmas,

 

Been a long day. 

 

I have a 4k display on p70.

 

Regards

 

Sepy

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Re: Has anyone here tried 1440x810 on their 3K (2880 x 1620) screen?

2016-03-06, 6:13 AM

Hey Sepy

 

If you got the 4K screen, then 1920x1080 is the resolution that should look sharper than other non-native resolutions... at least in theory.

 

Does 1920x1080 look sharper than other resolutions on your P70?

 

Brgds...   /Thomas

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Re: Has anyone here tried 1440x810 on their 3K (2880 x 1620) screen?

2016-03-06, 17:15 PM

I am a little confused by this discussion.  Unless there is a very specific reason to need to use a relatively low resolution (e.g. to see how a mobile or small screen device might render images, etc.)  why would anyone not use the highest possible resolution screen and then allow the OS to do proper anti-aliasing and scaling to achieve the best visual result?

 

Both Win7 and Win10 do credible jobs of rendering fonts at all sizes -- why not get a 4K display and simply experiment to find the most pleasing layout to satisfy your aesthetic requirements?

 

______________________________________________
P70, Xeon 1505 CPU, 64 GB ECC RAM, Samsung 970 Pro 1 TB + 512 GB NVMe Drives, 1 TB HDD, DVD-RW, 4 K Display, NVIDIA Quadro M4000
W700 model 2757-CTO (8 GB RAM, Crucial MX-100 SSD + Hitachi TravelStar 1 TB 7200 RPM Drives, Bluray R/W, NVIDIA Quadro FX3700M, WUXGA); Windows 7 Ultimate SP-1, W700 Mini-Dock
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Re: Has anyone here tried 1440x810 on their 3K (2880 x 1620) screen?

2016-03-06, 17:50 PM

I'm familiar with the scaling option in Windows but it doesn't always work well on all programs.

 

So the question remains... anyone with a 4K screen care to try 1920x1080 and let me know if it's sharp or blurry? Do you have time to test it practical?

 

Thanks & brgds...   /Thomas

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553 Posts

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Re: Has anyone here tried 1440x810 on their 3K (2880 x 1620) screen?

2016-03-06, 19:26 PM

I don't have a 3K screen, but on 4K screens like P70 (which isn't sold with 3K screen in North America) setting 4K display resolution to 1920x1080 produces proper, sharp, pixel-doubled graphic images. This can be easily tested by using bitmaps from http://www.lagom.nl/lcd-test/sharpness.php + a digital camera or magnifying glass.

 

So overall, provided the video card driver can be convinced to set the resolution, it works OK. E.g. P70+4K is perfectly usable as 1080p display for images, videos etc with no consequences.

 

However, with rendering text, it's not quite like 1080p because of ClearType. ClearType treats 1920x1080 LCD as 5760x1080 pixel elements screen, and achieves extra visual text clarity by dealing with subpixels. Which, of course, does not work quite the same with pixel-doubling, producing a bit fuzzy appearance of text.

 

That said, the text rendering is perfectly serviceable, readable etc. Just text on a real 1080p looks a bit better.

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67 Posts

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Sweden

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Re: Has anyone here tried 1440x810 on their 3K (2880 x 1620) screen?

2016-03-06, 20:23 PM

Thank you p600 for checking it for me, I appreciate it :-)

 

I'll go for the 3K screen then... not only for the resolution but also since the specs says it's brighter than the FHD display.

 

I'll most probably run it at full resolution but it's nice to know it won't look like crap if I want to run at 1/4 resolution sometimes.

 

Wonder if it saves battery or improves video performance (less lag) running at 1/4 resolution?

 

Brgds...   /Thomas

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