Just like USB , South Dakota , and other port , not every HDMI stimulant is the same , and using the good one could have a marked issue on things like image timbre , frame rates , and latency .
If deciphering every variation of HDMI was n’t already tedious enough , we now know that the latest and groovy HDMI 2.1 standard , well , is n’t very standardised . ATFTCentralinvestigation unwrap that the TV or monitor you purchase with “ HDMI 2.1″ might not support any of the belated features .
TFTCentral smell something fishy when it saw that a Xiaomi monitor with HDMI 2.1 reenforcement only reached the specifications for HDMI 2.0 . Instead of 4 kibibyte resolution , the panel was determine to 1080p . And the thing is , Xiaomi technically did n’t do anything wrong . It all add up down to semantics and some murky ( and consumer - hostile ) rule of thumb typeset by the HDMI Licensing Administrator .
Photo: Wes Davis/Gizmodo
In this case , Xiaomi was compliant in the eyes of the HDMI Supreme Being for lay to rest this modest endnote within the terms and experimental condition : “ Due to the subdivision of HDMI documentation standards , HDMI 2.1 is part into TMDS ( the bandwidth is equivalent to the original HDMI 2.0 and FRL protocols ) . The HDMI 2.1 interface of this intersection supports the TMDS communications protocol , the maximum supported solvent is 1920×1080 , and the maximum refresh charge per unit is 240Hz . ”
Now we ’re getting into the technical weeds but , in short , HDMI 2.0 is a subset of HDMI 2.1 , meaning its specification are housed within the New standard . The standards organization even said it would no longer certify for HDMI 2.0 , severalise TFTCentral that HDMI 2.0 “ no longer subsist ” and that the feature and capability of HDMI 2.1 are optional . As long as a monitor back up one of the newer standards , it can be call HDMI 2.1 .
As you ’d anticipate , HDMI 2.1 consists of many standards , so TV and supervise makers could theoretically grab the lowest cling yield , supply it to their ( formerly ) HDMI 2.0 ports , and slap an HDMI 2.1 recording label on the box .
The HDMI standards dead body even reassert toThe Vergethat what Xiaomi is doing is perfectly within the rule and that we all look on manufacturers to be honest about their Cartesian product . The trouble is that they rarely are .
History say us that even reputable brands will do whatever they can to use the latest buzzword to push products out . We ’ve seen nomadic carriers weasel their way into using role player 4 G and 5 chiliad labels , TV brands selling sets with HD compatibility but without the resolution to display it , and monitors from household names claiming to deliver HDR despite not supporting the official standard .
It ’s a frustrating scenario for consumers , who these standard bodies should be prioritizing . Now seeing HDMI 2.1 listed in the specs for a TV does n’t needfully intend it can hold up resolutions of up to 10 chiliad , bandwidth at 48Gbps , and active HDR . And while these were always only theoretic features , we had wrong assumed the existence of a minimal threshold we could take comfort in . Now the minimum includes HDMI 2.0 spec and could mean a maximum fend for resolution of only 1080p .
HDMI 2.1 has made headlines in late months because of the capabilities it enables on next - gen consoles and gaming PCs — specifically , the ability to endure 4 K games at 120Hz . You overleap out on those benefit if you do n’t have the right-hand connection and gamey - speed HDMI cable . Now , even if you recollect you have the right apparatus , you might not .
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