Indeed, at integer ratios, scaling should be done just by pixel duplication, with no unreasonable blur at all. There should be a driver option to disable blur or at least to switch between bilinear/bicubic and nearest-neighbour interpolation.
For FHD (1920×1080) and HD (1280×720) image on 4K (3840×2160) monitors of 24-27-inch size where individual image pixels are almost indistinguishable, blur unreasonably decreases perceptible sharpness without adding anything useful. For example, Full HD (1920×1080) image could be displayed on 4K display (3840×2160) with no blur, just by displaying one image pixel as exactly 4 (2×2) absolutely identical physical pixels with no interpixel diffusion whatsoever.
Given that the feature is not available in all 4K monitors, graphics-driver-powered scaling is the only way to go.
For Intel: for better understanding of how nonblurry integer-ratio scaling should work, please see the web demo.
Still no official response from anyone :/ ? Please Intel, take a look a at this issue, its not that hard to implement this and will make a huge diferrence for us users on 4k screen laptops. Actually, there is a probability that nonblurry scaling is exactly what could become selling point or killer feature, competitive advantage of low-performance graphics that would otherwise be not interesting in general.
Could you please look at this issue.
Thank you for contacting the Intel community.
Is the driver version that you are using 184.108.40.20690? Is with this version that your get this problem?
Please try as well the Beta driver, you can download it here:
If the issue still persists, I will appreciate if you could reply with the information at the following link:
Please don’t forget to attach the system information with the latest graphics driver installed:
Intel SSU (System Support Utility) (https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility):
Download Intel® System Support Utility
- Download the utility
- Run the exe and select ‘Scan’
- Save and include as an attachment in the Intel Community Forum
Please attach the report for Intel® Graphics Drivers follow the steps here:
- Click on the “Start Menu” -> Type “DxDiag” -> Press “Enter” -> Wait for the DirectX Diagnostic Tool to finish loading
- In the DirectX Diagnostic Tool, click “Save All Information” -> Save the file DxDiag.txt
- Include DxDiag.txt as an attachment in the Intel Community Forum
- Click on the “Start Menu” -> Type “cmd” -> Then a command shell window will open
- In the command shell, type “dispdiag –out %homepath%\Desktop\DispDiag-Intel-Issue.dat” -> The command shell will output something similar to “Dump File: C:\Users\[username]\DispDiag-########-######-#####-#####.dat”
- Locate the .dat file on your desktop and include DispDiag-Intel-Issue.dat in the Intel Community Forum
As MT_ already mentioned, this thread is about feature request, sorry for misleading topic name but this is such basic thing that i thought its already implemented but it just doesnt scale well. For most 4k users out there this is definitely someting we need to have implemented in future intel gpu drivers. Could intel please take a look at this and implement it in future graphics drivers? Adding more scaling options like: disable scaling, integer scaling, nearest-neighbour scaling. the feature is not available in all 4K monitors, graphics-driver-powered scaling is the only way to go :/ please Intel.
Thank you for your feedback, we will take this into consideration. Any feedback you can provide it is very helpful to improve the quality of our products.
I’m sorry; I will really appreciate if you could fill out the information requested on post 3 in order to report this feedback.
Thank you for the information and at that link your feedback will be very much appreciated and it will be taken into consideration for future driver released.