Full HD on a 4K monitor looks worse than on a Full-HD monitor.
This happens due to blur added by monitors and graphics drivers at any scaling ratio, though this could be avoided when enlarging by an integer number of times (e. g. 2 in case of FHD→4K).
As a result, sharpness in 3D games is decreased, white lines are gray, and pixel art is not pixel art anymore.
Each logical pixel could be displayed as a square group of integer (2×2, 3×3) number of physical pixels of the same color.
Such lossless scaling could be built into graphics drivers, this would automatically remove blur regardless of what monitor is used.
- Sign the petition for nonblurry scaling in graphics drivers.
- Vote for adding the feature to the AMD graphics driver.
- Express your support in forums: nVidia, AMD, Intel.
- Complain of blur to technical support of your GPU vendor: nVidia, AMD, Intel (1, 2).
- Complain of blur to technical support of your monitor/TV manufacturer.
- Ask about support for nonblurry scaling in comments to reviews of graphics cards, monitors and TVs in mass media.
- Request the feature for game engines Unity, CryEngine.
- Tell about the issue to as many people as possible.
- AMD: supported for GPUs with the GCN (2012) and newers architectures in Radeon Software 2020 (19.12.2) () for Windows 10; being implemented for Linux kernel 5.4.
- Intel: supported for Gen11 GPUs in the driver 184.108.40.20655 () for Windows 10; available since in laptops equipped with Gen11 CPUs.
- nVidia: supported with limitations for RTX and GTX 16* in the driver 436.02 () for Windows 10; incompatible with HDR, custom resolutions, DSR, 4:2:0, sharpening, and hybrid-GPU laptops.
- Linux: supported in Proton 4.11-10 (); supported with limitations in XRandR 1.5.1 () and nVidia graphics driver 384.47 (): image is cropped in many games.
- Monitors: announced for the 27″ QHD monitor EVE Spectrum expected in Q1 or Q2 .