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U2515H, no signal from PC?
Just received my U2515H, hooked it up to my computer using the mDP to DP cable provided in the box and immediately got a black screen telling me that there was no signal coming from my computer. I manually selected the input as mDP, so that shouldn't be the issue.
I'm running an Asus Rampage V Extreme mobo so i have a dedicated graphics card: a NVIDIA GeForce 980ti with 2 DP, 2 HDMI, and 2 DVI inputs.
Any suggestions on what might be the cause? I have tried unplugging and restarting both my computer and the monitor with no luck. I have a second U2515H arriving tomorrow, so I'd hate to have the same issue twice.
DELL-Chris M
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January 13th, 2016 07:00
* Turn the monitor off
* Disconnect all cables from the monitor including the power cable
* Press the monitor power button in for 30 seconds
* Reconnect all cables and retest. Make sure the cable ends are fully seated
Did you test both DP out ports on the GeForce 980 Ti into the monitor mDP in?
Kal1005
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January 13th, 2016 08:00
I have tested both my DP out ports on my graphics card.
tanfera
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January 13th, 2016 08:00
This happened to me when I enabled DP 1.2 option in the menu.
If that is the case, you do not have a DP 1.2 compatible hardware and software/OS. (perhaps if you are using a linux machine)
When your monitor tells no signal... push a menu button for about 10 seconds. It will show you other input sources, keep pushing. Then it will bring a menu to disable DP 1.2. Disable it. Restart the computer.
Hope this helps
Kal1005
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January 13th, 2016 08:00
DELL-Chris M
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January 13th, 2016 14:00
Good point, the manual does not make it clear that the button is not a physical button. Just pull the power cord and all other cables and wait 30 seconds.
Kal1005
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January 13th, 2016 16:00
Kal1005
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January 13th, 2016 16:00
DELL-Chris M
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January 14th, 2016 05:00
I think that your video card supports DP 1.2. The default out of box setting in the U2515H is DP1.1a or DP 1.2 Disabled. Did you enter the OSD (On Screen Display) -Display and change it to Enable? Read pages 25-27.
Kal1005
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January 14th, 2016 12:00
Kal1005
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January 14th, 2016 12:00
Long-pressing (10+ seconds) button #4 locks and unlocks the monitor, but long-pressing button # 3 brings me to an option to enable or disable DP 1.2. I've tried both options and have had no luck.
Kal1005
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January 14th, 2016 14:00
I still want to hook up the DP cables instead of HDMI, though.
DELL-Chris M
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January 14th, 2016 16:00
Ok, with the HDMI still connected and both computer and monitor on, connect the DP cable from the video card to the monitor. Can you then use the Input Source select and choose DP?
Kal1005
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January 16th, 2016 13:00
StevenVB
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January 11th, 2017 05:00
Hi, I have a similar problem. When I connect dell xps 13 or 15 to U2515H monitor with HDMI it goes into power save mode. I also only get the 'input source' options and cannot go to the main menu. Are there any solutions yet?
Many thanks!
sergioruizperez
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September 18th, 2017 00:00
Hi! I've had this problem for a long time and it now seems to be finally solved.
I just had to update my Asus GeForce 970 firmware to version 1.0:
BIOS update for STRIX-GTX970
Fix DP display issue with certain monitors.
www.asus.com/.../
I hope it helps. Thanks,
Sergio