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P2715Q, 4K 60Hz not working through HDMI despite using fix
Currently running a P2715Q through DisplayPort and a P2415Q through HDMI out of a MSI 1050 TI (which only has one of each port) on Windows 10. Monitors are the A06 and A04 revisions respectively, which means you should be able to enable HDMI 2.0 via the instructions below to get 4K 60Hz thru HDMI. However, on both displays, after disabling HDMI 1.4 per these instructions, I get a black screen with unresponsive buttons when I configure the display for 4K 60Hz via either the system or Nvidia control panels. The displays work normally with 4K 30Hz and 1440p 60Hz, and with 4K 60Hz through DisplayPort. Is there something else that I need to do to get both monitors running 4K 60Hz together?
DELL-Chris M
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April 30th, 2018 10:00
Test only one P2715Q at a time connected to the 1050 Ti HDMI out port.
* Turn the PC off
* Turn both P2715Q off. Lets call them #1 P2715Q and #2 P2715Q
* Disconnect all P2715Q cabling from the PC
* Reconnect #1 P2715Q to the 1050 Ti HDMI out port
* Turn #1 P2715Q on
* Turn the PC on
* Check the resolution and Hz
* Turn the PC off
* Turn #1 P2715Q off
* Disconnect #1 P2715Q from the PC and connect #2 P2715Q via the HDMI to HDMI
* Turn #2 P2715Q on
* Turn the PC on
* Check the resolution and Hz
onetimeoneplace
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May 2nd, 2018 15:00
Neither monitor would display 60Hz after applying those steps (only 30Hz), despite all other cabling disconnected from the PC and the maximum resolution listed in the monitor menu as 4K 60Hz
DELL-Chris M
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May 3rd, 2018 06:00
What are both P2715Q 20 digit serial numbers? When were these purchased?
onetimeoneplace
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May 7th, 2018 15:00
Serial numbers sent through PM
NauShal
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May 27th, 2018 14:00
mine happened this after windows 10 update. ... after this i get 4k @30hz from Nvidia control panel. im using GTX 1070 and mDP . any help?
Edit: Problem fix by enabling MST (primary) and disabling MST
DELL-Chris M
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May 28th, 2018 17:00
NauShal,
Explain your fix. You turned MST on, then off? In a single monitor setup, MST should have always been off? When did you turn it on?
MST Off = 4K2K 60Hz
MST Primary = 4K2K 30Hz
MST Secondary = Supports the older DP1.1 standard which is not applicable here
T.Seuss
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July 25th, 2018 08:00
What hardware versions of the P2715q support HDMI 2.0?
A00 - No
A03???