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234 Posts

08-20-2011

Bosnia and Herzegovina

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  • Posts: 234
  • Registered: ‎08-20-2011
  • Location: Bosnia and Herzegovina
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  • Message 11 of 13

Re: Yoga 3 Pro - output 2560 x1600

2014-11-15, 8:32 AM

wrote:

Good point with the cable, it can help someone reading this.

 

I think most of big LCD owners are savvy enough to check their display manual for these conditions.

 

For example, manual to my display clearly states that maximum resolution with HDMI is 1920x1200 (DVI/DisplayPort can go up to 2560x1600). The funny thing is that it has HDMI 1.3, which should support 2560x1600. This illustrates that simply checking for HDMI version number might NOT be sufficient.

 

Based on this, my advice is to explicitly check device manual before purchasing.


I guess the manufacturer was just plain lazy to put HDMI 1.4. Or maybe HDMI 1.4 licence costs 1 extra dollar, which was too much...

That's probably the case with many HDMI adapters as well.

 

But HDMI 1.3 supports max 1080p resolution. For 2560x1440/1600 you need HDMI 1.4.

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22 Posts

09-25-2013

Europe

19 Signins

458 Page Views

  • Posts: 22
  • Registered: ‎09-25-2013
  • Location: Europe
  • Views: 458
  • Message 12 of 13

Re: Yoga 3 Pro - output 2560 x1600

2014-11-15, 8:44 AM

wrote:
Oh... I guess the manufacturer was just plain lazy to put HDMI 1.4. Or maybe HDMI 1.4 licence costs 1 extra dollar, which was too much...

That's probably the case with many HDMI adapters as well.


The manufacturer would be crazy saving on HDMI licence. The real reason can be cost of extra features built into LCD display to support HDMI 1.4. If you only check Wikipedia, you can see that HDMI 1.4 must add these capabilities:

  • 3D over HDMI
  • Ethernet channel
  • Audio return channel (ARC)
  • 4K resolution at 30 fps

Especially 4K requires new technology inside, it is not about adjusting the clock crystal to process the input faster :)

 

So this is not about 1 extra dollar, but few hundreds of extra dollars for each such a new generation device (until it becomes common and the price decreases).

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234 Posts

08-20-2011

Bosnia and Herzegovina

1117 Signins

6736 Page Views

  • Posts: 234
  • Registered: ‎08-20-2011
  • Location: Bosnia and Herzegovina
  • Views: 6736
  • Message 13 of 13

Re: Yoga 3 Pro - output 2560 x1600

2014-11-15, 8:50 AM

wrote:

The manufacturer would be crazy saving on HDMI licence. The real reason can be cost of extra features built into LCD display to support HDMI 1.4. If you only check Wikipedia, you can see that HDMI 1.4 must add these capabilities:

  • 3D over HDMI
  • Ethernet channel
  • Audio return channel (ARC)
  • 4K resolution at 30 fps

So this is not about 1 extra dollar, but few hundreds of extra dollars for each such a new generation device (until it becomes common and the price decreases).


The HDMI CONNECTION must support these things.

But the display/device does not. ;-)

 

And yes, most manufacturers save on such a louzy llittle things... From phones, laptops, displays, everything. Unfortunate, but true.

For example Y2P and horrible single band wifi. Just a tiny bit cheaper than dual band wifi.

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