The behaviour does not change whether the Surface Pro is plugged into power or not.
If the monitor is powered on before the computer then it will work.
If the Surface Pro is powered on before the monitor, then the monitor will not power up. It is "held down". Once it has failed, it must be left for 5-10 minutes without power before it will work again.
Because I use a smart power board where the computer is the master device, the computer will always be on before all other devices (including the monitor) are powered up.
The miniDP to DP cable with the issue is from the same manufacturer as the miniDP to DP adaptor that works (with a standard DP to DP cable). I am also working with them to understand how the adaptor differs from the cable.
I have seen many problems reported with Dell monitors not working with miniDP to DP cables. Most of the cables have been designed for use with Apple Macs, but work fine for PCs with monitor brands other than Dell. If you search the forums, there are many reports of issues powering up or returning from sleep.
The behaviour does not change whether the Surface Pro is plugged into power or not. * That is not true for other SP3 users I have seen. Once they took the SP3 off of battery only, the issues stopped.
I do not understand this smart power board device but it seems like it is complicating matters. Proper testing should have the monitor plugged directly into the wall socket. The SP3 power adapter should also be plugged directly into the wall socket. Then test the two devices.
I want to keep using the smart power board, we have them on all electronic equipment and computers in the house. They work by only turning on 4 accessory power points when the Master device draws more than a specified amount of current.
Please note that my situation is different from the issues seen by others. The Dell monitor is not sleeping when the computer is off. It is completely without power.
Due to the smart power board, the monitor always powers on after the computer.
If I use the miniDP to DP cable it fails to power up.
If I use the miniDP to DP adaptor with a DP to DP cable, it works.
If I change the configuration to not use the smart power board, and the monitor is left sleeping, then it will work.
To replicate the smart power board. turn the monitor off at the wall socket, or unplug it. Power up the computer and then power up the monitor.
There is a difference in the cable vs adaptor configuration that I am working with the manufacturer to understand.
I still feel that this issue is a Dell issue as the monitor should never fail to power up. Using the same cable which fails on the 27" monitor works fine on an older 24" Dell monitor when configured in the same way.
Identifying the difference in the cable vs adaptor is just a work around for a Dell fault.
Then contact Dell Australia Technical Support and get it exchanged. Go back to the top of this Monitor Forum * Open "FAQ Monitor" * Open "Monitor warranties and replacement instructions"
DELL-Chris M
Community Manager
•
56.9K Posts
0
October 30th, 2014 08:00
Does the dock have its 48w power supply connected to it?
WinthropDC
6 Posts
0
October 30th, 2014 09:00
Hi Chris
I use a smart power board so the monitor is starting from completely off not from sleep.
It fails to power up when connected by the mini DP to DP cable when connected to
* Surface Pro 1
* Surface Pro 3
* Surface Pro 3 with docking station
Using an miniDP to DP adaptor with a standard DP to DP cable works.
Yes, dock had power supply it came with plugged in.
David
DELL-Chris M
Community Manager
•
56.9K Posts
0
October 30th, 2014 10:00
And the SP1 and SP3 not on the dock were connected to their 36w power supply?
WinthropDC
6 Posts
0
October 30th, 2014 16:00
No. Only the dock was powered during the test.
The SP1 and SP3 were on battery power.
DELL-Chris M
Community Manager
•
56.9K Posts
0
October 30th, 2014 20:00
Test the SP1 and SP3 off the dock using the 36w power supply.
WinthropDC
6 Posts
0
October 31st, 2014 21:00
Hi Chris
The behaviour does not change whether the Surface Pro is plugged into power or not.
If the monitor is powered on before the computer then it will work.
If the Surface Pro is powered on before the monitor, then the monitor will not power up. It is "held down". Once it has failed, it must be left for 5-10 minutes without power before it will work again.
Because I use a smart power board where the computer is the master device, the computer will always be on before all other devices (including the monitor) are powered up.
The miniDP to DP cable with the issue is from the same manufacturer as the miniDP to DP adaptor that works (with a standard DP to DP cable). I am also working with them to understand how the adaptor differs from the cable.
I have seen many problems reported with Dell monitors not working with miniDP to DP cables. Most of the cables have been designed for use with Apple Macs, but work fine for PCs with monitor brands other than Dell. If you search the forums, there are many reports of issues powering up or returning from sleep.
David
DELL-Chris M
Community Manager
•
56.9K Posts
0
October 31st, 2014 21:00
The behaviour does not change whether the Surface Pro is plugged into power or not.
* That is not true for other SP3 users I have seen. Once they took the SP3 off of battery only, the issues stopped.
I do not understand this smart power board device but it seems like it is complicating matters. Proper testing should have the monitor plugged directly into the wall socket. The SP3 power adapter should also be plugged directly into the wall socket. Then test the two devices.
WinthropDC
6 Posts
0
October 31st, 2014 22:00
Chris
I want to keep using the smart power board, we have them on all electronic equipment and computers in the house. They work by only turning on 4 accessory power points when the Master device draws more than a specified amount of current.
Please note that my situation is different from the issues seen by others. The Dell monitor is not sleeping when the computer is off. It is completely without power.
Due to the smart power board, the monitor always powers on after the computer.
If I use the miniDP to DP cable it fails to power up.
If I use the miniDP to DP adaptor with a DP to DP cable, it works.
If I change the configuration to not use the smart power board, and the monitor is left sleeping, then it will work.
To replicate the smart power board. turn the monitor off at the wall socket, or unplug it. Power up the computer and then power up the monitor.
There is a difference in the cable vs adaptor configuration that I am working with the manufacturer to understand.
I still feel that this issue is a Dell issue as the monitor should never fail to power up. Using the same cable which fails on the 27" monitor works fine on an older 24" Dell monitor when configured in the same way.
Identifying the difference in the cable vs adaptor is just a work around for a Dell fault.
David
DELL-Chris M
Community Manager
•
56.9K Posts
0
October 31st, 2014 22:00
Then contact Dell Australia Technical Support and get it exchanged. Go back to the top of this Monitor Forum
* Open "FAQ Monitor"
* Open "Monitor warranties and replacement instructions"
WinthropDC
6 Posts
0
October 31st, 2014 23:00
Hi Chris
Replacement will not fix it.
I have a second U2713HM used on a desktop computer that does exactly the same thing when connected in this way.
It is not an individual monitor fault. It is a design fault with Dell's newer monitors and their Display Port implementation.
My research so far indicates that a workaround is to not connect the power pin 20.
David