Hdmi picture issue

[Glatics]

Recently purchased new longer hdmi cable when connected I get sparkles on screen , original cable is fine is the tried and trusted brand that is reliable?

[TimmyBGood · Accepted solution]

@Glatics 

What length is the cable, and what resolution is pixelating?

Roughly speaking, UHD is good for about three metres (and perhaps up to five) no matter what brand of passive HDMI cable is in use: beyond that you need an active technology.

Note that paying for 'premium' passive cable makes almost no difference, and there are many complete rip-offs around.

[Glatics]

It's  a 3mtr 4k UHD it said suitable gor sky Q box

[TimmyBGood]

@Glatics 

Three metres should be OK as long as the cable is built to the 'high speed' standard.  Many people use Amazon Basics cable of that length successfully.

[Glatics]

It's either a faulty cable , or I have been duped into purchasing a standard unsuitable cable I did get it off ebay normally OK,  but it first time I got one of these , don't know to much about the cabes to be honest

Thanks for your help it's appreciated 

[cuke]

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@Glatics wrote:

Recently purchased new longer hdmi cable when connected I get sparkles on screen , original cable is fine is the tried and trusted brand that is reliable?

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Sparkles do suggest a hdmi connection issue, best cable to get are ones that are certified such as ugreen from amazon.

[Chodley]

Yeah no point going to ebay when they are so cheap from amazon