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New DisplayPort 1.4 Standard Can Drive 8K Monitors Over A USB Type-C Cable (arstechnica.com)

Posted by BeauHD on from the 7,680-x-4,320 dept.

AmiMoJo writes: VESA has finalized and released the DisplayPort 1.4 spec, which can drive 60Hz 8K displays and supports HDR color modes at 5K and 8K. The physical interface used to carry DisplayPort data -- High Bit Rate 3 (HBR3), which provides 8.1Gbps of bandwidth per lane -- is still the same as it was in DisplayPort 1.3. The new standard drives higher-resolution displays with better color support using Display Stream Compression (DSC), a "visually lossless" form of compression that VESA says "enables up to [a] 3:1 compression ratio." This data compression, among other things, allows DisplayPort 1.4 to drive 60Hz 8K displays and 120Hz 4K displays with HDR "deep color" over both DisplayPort and USB Type-C cables. USB Type-C cables can provide a USB 3.0 data connection, too.

3 of 156 comments (clear)

  1. Re:The future looks bright! by Anonymous Coward · · Score: 5, Interesting

    According to the specs for that 32" monitor you linked the PPI (pixels per inch) is 3840/29.1 = 131. The correct text scale setting for your 4K monitor is only 125% (the ideal value for your 4K monitor is 131/96 = 136%). Your Dell 30" 2560x1600 monitor should be running at 100% text scale (aka. 96 PPI), at least that was what I used on my old one.

    Going from 100% to 125% is nowhere near enough to remove the "jaggies" in the Windows text rendering. The most likely reason you like the text better on your 4K monitor is better (newer) IPS display technology in your 4K monitor.

    The ideal monitor size for a 4K monitor for office work is 24" as that puts the scale at exactly 200%. The ideal monitor size to replace your old 30" is a 5K monitor at 27" as also puts the scale exactly at 200%.

    Why 200%? Because that's the magical scale that makes it a "retina" monitor where the OS can upscale old applications linear fashion without aliasing articles like bluring.

    As for HDR improvements, as long as Microsoft's Display Window Manager (DWM) only supports 24 bpp you will never see the HDR feature unless you launch a fullscreen game..

  2. Re:"visually lossless" sounds a lot like lossy... by amRadioHed · · Score: 4, Interesting

    Is the human eye capable of detecting the difference you gave in your example? That sounds unlikely.

    --
    We hope your rules and wisdom choke you / Now we are one in everlasting peace
  3. Re:"visually lossless" sounds a lot like lossy... by Nethemas+the+Great · · Score: 5, Interesting

    Fortunately or unfortunately, that's not the point. There have been demonstrations to that affect but no one is willing to risk it.

    --
    Two of my imaginary friends reproduced once ... with negative results.