Dell U2715H Monitor - Manual (Page 27)

Setting Up the Monitor |
27
B) Monitor fails to show any content (blank screen)
1. Use the and button to highlight DP or mDP.
DP
mDP
2. Press and hold the button for approximately 8 seconds.
3. The DisplayPort configuration message will appear:
Dell U2715H
DP 1.2?
Enable
Disable
4. Use the button to enable DP1.2 or button to exit without making any
changes.
Repeat the above steps to change the setting back to DP 1.1a if necessary.
CAUTION: The graphics are used for the purpose of illustration only.
Appearance of the computer may vary.