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mmarsh1972
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March 8th, 2014 12:00
Dell U2414H DP display port MST
I have 3 U2414 using the DP MST Daisy Chain. I am using a 2x ASUS Direct CU II 780GTX running in SLi
#1 (Left) connected to PC DP 1.2 ENABLED
#2 (Middle) connected to #1 DP 1.2 ENABLED
#3 (Right) connected to #2 DP 1.2 ENABLED
Everytime I restart the PC all 3 go into power saving mode. The only way to get everything back is to disconnect everything, run a hard reset on #1 and gradually bring the other two on line. Getting #1 to work again as the DP is extremely fussy and will sometimes not detect the PC even by plugged in alone.
I have reversed the screen positions several times, they are ALL having this behavior. So its not just a bad apple of the trio, there is something seriously off here.
Needless to say I am about to make a decision whether I want to keep them because this is too much it can take hours each night of configuring and testing just to get all 3 screens to work again.
DELL-Chris M
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Posted March 8th, 2014 14:00
mmarsh1972,
The last one in the chain should have DP 1.2 disabled. The monitors are passive. The do not "seek" a video signal. The computer operating system actively controls all powersave including the video card display port. The operating system must dictate to the video card to "resend" the video signal to the monitors. You do not mention what operating system is running so I will guess?
Win7/8 Powersave settings
* Click Start
* Enter power
* Click Power Options
* Click Change plan settings
* Click Change advanced power settings
* Open USB settings
* USB selective suspend setting
* Change to Disabled
* Open PCI Express, Link State Power Management
* Set all to Off
* Click Apply- OK
* Retest
DELL-Chris M (old account)
#IWork4Dell