HDMI cable trouble????

heyjay14

Howdy folks, I got myself a HDMI cable off of ebay during the week and for some reason it wont work with my laptop but will work with sky and the playstation etc. Also If I use a different HDMI cable with the laptop that will work.

Basically im trying to hook the laptop upto my tv via this HDMI cable but for some reason it wont work. Anyone any ideas?

Cheers

Idleater

I've seen some specifications for tv/monitors that treat computer output differently to br / dvd. Check your display properties against the input formats on the. Screen. You might have to change to 50hz as opposed to 60 for example.
Also verify that there are no hdcp inconsistencies between devices.

johneire31

Firstly you need to make sure you are doing what is needed to get the display up on the TV

Connect cable
usually you have a HDMI button on your remote control, or you have a 'source' button, you need to select the output that is marked for HDMI input.

you need to 'send' the output from computer to TV. Most computers have an F key deicated to doing this.

Usually it will give 3 choices 'display on computer', 'display on external monitor' or 'display on both' you need to select one of the latter two.

you can also reach these settings by you graphic card settings, by right clicking on the desktop and going to 'screen resolution'

j

heyjay14

Cheers lads. Will try the advise you mentioned.

heyjay14

Tryed everything and it still wont work. The weirdest thing about it is the cable I bought will work with the ps3 but not the laptop and the cable I use for the ps3 will work for both the ps3 AND the laptop. I need the one I bought to work though as its 4 meters long and I need that length

mossym

hdmi can be very fussy, the fact that the cable doesn't work with one source and works with another means the cable is dodgy, for short cables you can buy cheap but longer like your 4m it's better off spending a bit more.

if you wanted to test, try reducing the output resolution of the laptop to 1280*720p, and you may find the cable works

andy1249

With HDMI cables , most short well made cables work exactly the same. Short is usually defined as anything up to 8 meters.

The reason for this is that at over 8 meters it is usually impossible to get the cable to pass the category 2 ( high speed ) test for bandwidth.

HDMI carries signals at huge bandwidth figures , they must be machine made , as the quality of the soldering and the dimensions of the geometry or twists between the twisted pairs is critical to the correct working of the cable.

There is an inherent attenuation problem with the design when it comes to longer cables. The high frequency and the length usually mean that the voltage levels become indistinct at longer lengths and the cable simply stops working.

Four meters should be fine though , so I suspect that as usual , some dodgy ebay seller has offloaded a badly made product onto you.

This is rampant on ebay. There are plenty of reliable non ebay sites around that will supply you with a four meter cable that doesnt cost the earth and will work.

Blue jeans UK has what you need starting at a very reasonable £5 sterling.

http://www.bluejeanscable.co.uk/store/hdmi-cables/index.htm

These guys are very reliable.