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U2713HM, Full resolution with active converter on HDMI
I have several U2713HM monitors which I usually have connected to my desktop via a DisplayPort. I purchased a Dell D3100 Hub so that I could connect some of these monitors to my laptop. If I connect a monitor to the Hub via the Hub's single DisplayPort, it works as expected. However, if I try to connect to the Hub via a HDMI, it does not display the full resolution. I understand that this is expected since the Monitor only supports HDMI 1.3. However, I have purchased an Active Converter that is designed to convert the DisplayPort signal of the monitor into the appropriate HDMI signal. Using this converted, when I plug into the HDMI of the dock, my laptop will not detect the monitor. What am I missing?
DELL-Chris M
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February 2nd, 2016 06:00
Post a link to the specific active converter you purchased.
wyeack
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February 2nd, 2016 11:00
Here is everything:
Active Converter:
www.amazon.com/gp/product/B00EDT0072
HDMI Cable:
www.amazon.com/gp/product/B006JSGGXM
Dock:
www.amazon.com/gp/product/B00O0M46KO
Monitor:
www.amazon.com/gp/product/B009H0XQQY
DELL-Chris M
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February 2nd, 2016 19:00
You do not plug the DP end of the Active Converter into the monitor DP. You are using backwards. That converter is designed to go from the computer DP out and convert down to HDMI. From the sales site you linked =
Portable active adapter connects a DisplayPort (DP, DP++, DisplayPort++) equipped laptop or desktop to an HDTV, monitor, or projector with HDMI input;
Computer DP out --> Male DP Active Converter --> Active Converter HDMI out --> HDMI to HDMI cable --> Monitor HDMI in
wyeack
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February 3rd, 2016 01:00
So which adapters will work?
What about this one?
www.amazon.com/.../ref=sr_1_1;qid=1454490230&sr=8-1-spons&keywords=HDMI+to+DisplayPort&psc=1
DELL-Chris M
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February 3rd, 2016 05:00
That converter is computer HDMI to monitor DP. It says it can "Support resolutions up to 4K". But, the D3100 HDMI outs max to 2048x1152 60Hz as the second and third monitors. So even if you connect an HDMI to HDMI cable to them, then to the HDMI to DP converter to DP in on the 2nd and third U2713HMs, the resolution will only be 2048x1152 60Hz. Regardless of the converter, any HDMI in usage on the U2713HM will only produce 1920x1080 60Hz.
wyeack
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February 3rd, 2016 07:00
Hi Chris,
The first three bullets of the description for that adapter are as follows:
Reading between the lines, this description seems to indicates that this adapter is designed solely for the purpose of connecting a computer's HDMI output to a monitor's DisplayPort input.
Now, you said in your post that the D3100's HDMI's max out at 2048x1152. Are you absolutely positive? If so, the advertising on this product is deeply misleading. The product page and reviews on Amazon definitely indicate that this dock can support three ultra HD displays.
DELL-Chris M
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February 3rd, 2016 08:00
The first three bullets of the description for that adapter are as follows:
Connect your HDMI enabled Ultrabook or laptop to a DP monitor using this compact, USB-powered adapter
Works with HDMI enabled computers with 4K such as the HP ChromeBook 14 and DisplayPort enabled monitors and projectors
Supports resolutions up to 4K
Reading between the lines, this description seems to indicates that this adapter is designed solely for the purpose of connecting a computer's HDMI output to a monitor's DisplayPort input.
* Right. That is what I said. "That converter is computer HDMI to monitor DP. It says it can "Support resolutions up to 4K".
Read this.
It can support three monitors =
Monitor 1 DP = 3840x2160 30Hz, 1920x1080 60Hz
Monitor 2 HDMI = 2048x1152 60Hz
Monitor 3 HDMI = 2048x1152 60Hz
If only two monitors are connected to the D3100 dock HDMI outs, then they would do 2560x1440 50Hz. But the monitor has to support it.
wyeack
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February 3rd, 2016 09:00
According to that, if I use the DisplayPort and one HDMI of the dock, it should support two U2713HM monitors at full resolution (2560 x 1440).
Is that correct? So then I will be able to use the dock for at least two additional monitors? Which adapter would work?
wyeack
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February 3rd, 2016 10:00
How is doing getting a converter from HDMI to DVI and plugging the DVI into the Monitor any different than getting an HDMI to DisplayPort adapter and plugging the DisplayPort into the monitor?
DELL-Chris M
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February 3rd, 2016 10:00
The U2713HM HDMI maximum is only 1920x1080 60Hz. There is not any device that can "upgrade"" the monitor HDMI design.
The U2713HM DVI-D DL can do 2560x1440 60Hz. So maybe if you got an HDMI to DVI-D DL cable.
D3100 HDMI out --> HDMI to DVI-D DL cable --> U2713HM DVI-D DL in
DELL-Chris M
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February 3rd, 2016 13:00
HDMI and DVI are the same video signal, so they can convert to each other. DVI is just missing the audio.
Video card or dock HDMI cannot up-convert to monitor DP/mDP.
Video card or dock DP/mDP can down-convert to monitor HDMI.