purple dots on 4k TV

[lubosblacksmyth]

Hi guys, i connected my gtx 980 to 4 k tv but i got this problem with display, GPU was working,,, a restarted pc and turn on and off tv and didnt help. In a game like csgo no purple dost. I dont know what to do. https://imgur.com/a/NWtnR https://imgur.com/2cKGPRc
In youtube same problem
Edit: On my phone no purple dots... interesting
I took the photo of it https://imgur.com/a/NFy8d

 

[Matthew Keeton]

It sounds like the hdmi cable is freaking out so unplug the hdmi from thr tv and pc also try the pc with another display to see if the problem stays the same. Post results back here when finished.

 

[lubosblacksmyth]

I pluged in my xboxone and seems its working. Hmm.. i think that this problem happened before on xbox but i just turned of and turned on and dosts disappear.

 

[lubosblacksmyth]

It could be because of hdmi 1.4 not 2.0 ?

 

[Matthew Keeton]

It sounds more like a loose connection to the tv really even with the hdmi cord.

 

[lubosblacksmyth]

My xbox is fine when i set 4k in game purple dosts will apear at 1080p no problem.