So, the EDID must be stored in the EEPROM of the U2414H and it's "just" software-locked, does this mean that a firmware and/or EDID update is possible?
The issue seems to be detection on wake. Turning power off monitors helped, but was not definitive every time. Also, need to ignore Windows 8.1 settings and go straight to Control Panel.
Trying never sleep idea when plugged in and will see how it goes.
Well, it's hard to say what's actually going wrong, but I think you're right about that.. Not sure if the monitor turns into sleep mode too soon due to the high resolution or due to a malformed EDID.
Hello - I'm new here. Just bought my first Dell products - you guessed it, the U2414h monitors - two of them.
I have seen a number of these threads about the daisy chaining not working. I am in the same boat. I tried it a number of different ways - turning on and off 1.2 on the first and second monitors in multiple configs. Nothing seems to work. Since there are so many of the same thread, there has to be an issue with the set up that isn't being explained properly if they can get it to work fine at Dell. I hope they figure it out and issue a proper solution.
I have a new Mac Pro (nMP) with the dual D700 cards which can drive these monitors without breaking a sweat. I just have each monitor plugged into a separate Thunderbolt2 port for now. Both monitors are working fine this way in either 1.1 or 1.2 mode. It's just the daisy chaining that seems to be not working. Overall, I'm really happy with these. Image looks great, nice thin bezel, USB 3.0 hubs works great.
I would like to see the daisy chaining worked out though. Those ports are valuable and if I can have one monitor plugged into the other and save a port, it would be fantastic. Here's hoping for a solution soon for such a great monitor.
Just wanted to let you all know that this can work. Took the chance and ordered 2 U2414H's and got them today. They are A00 revision.
My GPU is an Asus GTX 670. I'm using this connection to my screens.
GPU > Monitor 1: Included DP to MiniDP
Monitor 1 > Monitor 2: Included DP to MiniDP
Both screens are enabled DP 1.2(they recommend to only do 1.2 on your monitor connected to the PC)
Had to restart the computer to make it work, both monitors went into Powersave after I connected the 2nd monitor. Hard reset of the PC and they booted up in landscape mode.
Unfortunately they are still recognized as a HD device according to Nvidia Control Panel. Seems when I create a custom profile to avoid this, connection to the 2nd monitor is lost.
But I've only been working on them for 1 hour so far, so I'll report back if I get them recognized as PC monitors.
I hope more of you are getting this to work as these monitors looks really nice, coming from my old Dell U2407WFP. The matte AG on the 2407 was soo grainy viewed from the side or in bright light from the sides. Much more smooth on the 2414's.
I managed to clock the screens to 70hz making the GPU recognize both monitors as PC. Maybe it can be done with forcing the monitors to 60hz too, haven't tried that. I am very satisfied with the result.
I had expected much more trouble getting this to work, after reading countless forums and posts of this not working. So I hope my result can spread a little positivity for those who are thinking about a creating this setup. It's brilliant.
I too have been having this issues. After speaking with a tool from Dell, I spoke to Microsoft yesterday (5-14-2014). After a hour long phone call, she found out that the is a know issues and Microsoft is working with Dell to resolve the issue. I was told to Call ask if I did not see a resolution by August. As this is a driver issue and MS will wait for Patch Tuesday. Hope this helps, more hope the resolve this.
Since it daisy chaining isn't working for the Mac either - I still wonder if the problem lies with Dell? Maybe in the spec for the monitor or something?
Please correct me if I'm wrong, however, I thought I read that DP 1.2 MST (Daisy Chaining) wasn't supported under current OSX Mavericks. The hardware supports DP 1.2, but the OS itself does not. This was what I found in a quick search.
I had (have?) the self same issue. Using a Surface Pro 2 and its docking station connected to two U2414H screens. I must admit that my first issue was one of not reading the manual and getting the daisy chain connection reversed. Once changed to using the Display port out on screen 1 and connecting that to the mDP as the input for screen 2 and setting screen 1 to DP1.2 everything worked - for 36 hours.
The only way I could get the two external displays to work has been to remove the power cables to the Dell screens for 30 seconds and reconnect. Prior to this, the display driver could see the two monitors but identify only one of them and so output to only the first of the two daisy chained displays. I have reset screen 2 to disable DP1.2. The "DisplayPort Topology" display now makes a lot more sense though I fear what will happen when the Surface goes to sleep again. We shall see.
Net, part of my issue was not doing things correctly. In my opinion, not all is working as it should and I don't think this is all the Surface.
mastermattie
16 Posts
0
April 28th, 2014 15:00
Here some update,
This is my REGISTER layout on the monitors.
Accouring to the Dell U2414H display driver, the entries with "Dell U2414H(miniDisplayPort)" should be the right ones.
This are the Dell U2414H driver file (U2414H.inf) contents
(Based on http://msdn.microsoft.com/en-us/library/windows/hardware/jj133967(v=vs.85).aspx?)
Last but not least:
Earlier I saw a post of Chris about not being sure about Firmware, at my search i came to this file:
ftp://ftp.dell.com/Manuals/all-products/esuprt_display_projector/esuprt_Display/dell-u2414h_White%20Papers1_en-us.pdf
So, the EDID must be stored in the EEPROM of the U2414H and it's "just" software-locked, does this mean that a firmware and/or EDID update is possible?
mastermattie
16 Posts
0
April 29th, 2014 15:00
Dear topic readers, Hi folks,
I've found and documented a workaround.
I hope you're able to fix the problem as well.
Please read my topic here: U2414H DisplayPort Daisy Chain / MST Resolution: How I fxed it (workaround)!.
TroyChristmas
1 Message
0
May 5th, 2014 16:00
Same issues here with Surface Pro 2 and 2 2414's.
The issue seems to be detection on wake. Turning power off monitors helped, but was not definitive every time. Also, need to ignore Windows 8.1 settings and go straight to Control Panel.
Trying never sleep idea when plugged in and will see how it goes.
New technology is always so fun!
:emotion-9:
ActuallyJoltman
7 Posts
0
May 5th, 2014 16:00
@mastermattie
This gives credence to the firmware on the monitors not reporting correctly (as well as the drivers being an issue). Would you agree?
mastermattie
16 Posts
0
May 5th, 2014 16:00
Well, it's hard to say what's actually going wrong, but I think you're right about that..
Not sure if the monitor turns into sleep mode too soon due to the high resolution or due to a malformed EDID.
skellener
4 Posts
0
May 7th, 2014 18:00
Hello - I'm new here. Just bought my first Dell products - you guessed it, the U2414h monitors - two of them.
I have seen a number of these threads about the daisy chaining not working. I am in the same boat. I tried it a number of different ways - turning on and off 1.2 on the first and second monitors in multiple configs. Nothing seems to work. Since there are so many of the same thread, there has to be an issue with the set up that isn't being explained properly if they can get it to work fine at Dell. I hope they figure it out and issue a proper solution.
I have a new Mac Pro (nMP) with the dual D700 cards which can drive these monitors without breaking a sweat. I just have each monitor plugged into a separate Thunderbolt2 port for now. Both monitors are working fine this way in either 1.1 or 1.2 mode. It's just the daisy chaining that seems to be not working. Overall, I'm really happy with these. Image looks great, nice thin bezel, USB 3.0 hubs works great.
I would like to see the daisy chaining worked out though. Those ports are valuable and if I can have one monitor plugged into the other and save a port, it would be fantastic. Here's hoping for a solution soon for such a great monitor.
skellener
4 Posts
0
May 12th, 2014 13:00
Any solutions when daisy chaining these with a new Mac Pro (nMP)??
ISkull
2 Posts
0
May 13th, 2014 05:00
Just wanted to let you all know that this can work. Took the chance and ordered 2 U2414H's and got them today. They are A00 revision.
My GPU is an Asus GTX 670. I'm using this connection to my screens.
GPU > Monitor 1: Included DP to MiniDP
Monitor 1 > Monitor 2: Included DP to MiniDP
Both screens are enabled DP 1.2(they recommend to only do 1.2 on your monitor connected to the PC)
Had to restart the computer to make it work, both monitors went into Powersave after I connected the 2nd monitor. Hard reset of the PC and they booted up in landscape mode.
Unfortunately they are still recognized as a HD device according to Nvidia Control Panel. Seems when I create a custom profile to avoid this, connection to the 2nd monitor is lost.
But I've only been working on them for 1 hour so far, so I'll report back if I get them recognized as PC monitors.
I hope more of you are getting this to work as these monitors looks really nice, coming from my old Dell U2407WFP. The matte AG on the 2407 was soo grainy viewed from the side or in bright light from the sides. Much more smooth on the 2414's.
Flenix
1 Rookie
•
13 Posts
0
May 13th, 2014 06:00
Looks like Dell has abandoned this thread.
Does that mean they finally admit there is a factory fault with this product?
ISkull
2 Posts
0
May 13th, 2014 08:00
A follow up on my last post.
Using this tool: http://www.monitortests.com/forum/Thread-Custom-Resolution-Utility-CRU
and this guide: http://linustechtips.com/main/topic/31526-overclocking-your-monitor-refresh-rate-amd-gpus/ (works for nVidia too)
I managed to clock the screens to 70hz making the GPU recognize both monitors as PC. Maybe it can be done with forcing the monitors to 60hz too, haven't tried that. I am very satisfied with the result.
I had expected much more trouble getting this to work, after reading countless forums and posts of this not working. So I hope my result can spread a little positivity for those who are thinking about a creating this setup. It's brilliant.
MikadoWU
2 Posts
0
May 14th, 2014 10:00
skellener
4 Posts
0
May 14th, 2014 10:00
Since it daisy chaining isn't working for the Mac either - I still wonder if the problem lies with Dell? Maybe in the spec for the monitor or something?
skellener
4 Posts
0
May 14th, 2014 11:00
Maybe by 10.9.3 for OS X then. Thank you for the info.
ActuallyJoltman
7 Posts
0
May 14th, 2014 11:00
Please correct me if I'm wrong, however, I thought I read that DP 1.2 MST (Daisy Chaining) wasn't supported under current OSX Mavericks. The hardware supports DP 1.2, but the OS itself does not. This was what I found in a quick search.
https://discussions.apple.com/message/23655430#23655430
spcassidy
1 Message
0
May 19th, 2014 06:00
I had (have?) the self same issue. Using a Surface Pro 2 and its docking station connected to two U2414H screens. I must admit that my first issue was one of not reading the manual and getting the daisy chain connection reversed. Once changed to using the Display port out on screen 1 and connecting that to the mDP as the input for screen 2 and setting screen 1 to DP1.2 everything worked - for 36 hours.
The only way I could get the two external displays to work has been to remove the power cables to the Dell screens for 30 seconds and reconnect. Prior to this, the display driver could see the two monitors but identify only one of them and so output to only the first of the two daisy chained displays. I have reset screen 2 to disable DP1.2. The "DisplayPort Topology" display now makes a lot more sense though I fear what will happen when the Surface goes to sleep again. We shall see.
Net, part of my issue was not doing things correctly. In my opinion, not all is working as it should and I don't think this is all the Surface.