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2432
November 21st, 2017 14:00
U2715H, white flickering screen after wake up the system
I bought the display 6 months ago and my first disappointment was, that i can't use headphones through the monitor's audio port. Every time the system exits from sleep mode, the Dell display is not in the list with the playback devices. Then i opened a topic about this problem here and you guys replied to me, that even in the user guide of the display is written, that the monitor has problem with headphones. So i have audio port but can't use it.
And now i experience second disappointment - every time i awake my systems, the display shows only white screen with flickering vertical lines. It shows also a movable white square, which responds to the mouse movements.
And that's all that i can see until i press the restart button of the PC. After restarting the system, the picture is back on. But if i put the system to sleep again - the problem repeats itself. I use high class HDMI cable, but i decided to check it. The cable worked well on another system. Then i tried with another HDMI cable - the strange problem still occurs. I reinstalled the Display drivers (downloaded from Dell website) - still nothing changed. I find a thread online, where was written to disable the Sleep mode in the monitor's settings. But guess what - when i open the monitor's menu there is not such option like Sleep mode or anything related with Sleep ( i checked all the submenus).
To summarize, I have high class new monitor and experience issues like I have second hand low manufacturing quality monitor. Enlighten me please - is the new problem fixable or again I should open the user guide and see that is written to not put my computer to sleep if I don't want to lose the displaying ability of the display.
Now i'm serious, if I can't fix this problem, I want my money back + compensation for the corrupted working files that were damaged from the unexpected need of restarting the system. I'm a graphic designer and my After Effects files are damaged because of these frequent restarts.
DELL-Chris M
Community Manager
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56.9K Posts
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November 22nd, 2017 09:00
Per Dell policy, there will not be any compensation. Dell is not responsible for your data.
Per Dell policy, refunds are only given inside the first 30 days from the purchase date. After that, you are only entitled to refurbished monitor exchange.
The online U2715H User's Guide page clearly notates on page 10 the usage of the Audio-Line out port =
You should attach powered speakers to the Audio-Line out port. Then plug headphones into the headphone out port on the speakers.
If you want me to assist you in troubleshooting, see below...
Test a different monitor via HDMI on the current computer using the same sleep/wake. Does the same issue occur?
Test this U2715H via HDMI on another computer using the same sleep/wake. Does the same issue occur?
dagger_69
3 Posts
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November 22nd, 2017 11:00
Here is your Overview page of U2715H monitor - why you didn't write anywhere that the audio line out doesn't support headphones. How am i supposed to expect that in the page 10 will find out such bad feature. i will answer to myself - that's because too many people use headphones and will reconsider whether to buy your hi-class monitor.
I tested the monitor on other machine and the same problem appeared again. What a surprise. I will answer to myself again - that's because you know there are many faulty monitors of your UltraSharp class. And for the record - i installed few previous versions of my GPU drivers (even tried 1 year old one) and still no good result.
DELL-Chris M
Community Manager
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56.9K Posts
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November 23rd, 2017 11:00
Here is your Overview page of U2715H monitor - why you didn't write anywhere that the audio line out doesn't support headphones.
OK. Going to that sales page that you linked, I logically click the "Tech Specs" tab. And under "Connectivity" is states =
In summary, both the Sales page and the User's Guide specifically states to use speakers, not headphones on the Audio Line out port.
DELL-Chris M
Community Manager
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56.9K Posts
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November 24th, 2017 06:00
So you tested the U2715H on two computers using HDMI?
Was that HDMI out on the computers to HDMI in on the U2715H using a straight cable, no converters?
Computer HDMI out port --> HDMI to HDMI cable --> U2715H HDMI in port #1
Computer HDMI out port --> HDMI to HDMI cable --> U2715H HDMI in port #2
Do the computers also have DP or mDP out ports to test to see if the same issue happens?
Computer DP out port --> U2715H DP to mDP cable --> U2715H mDP in port
Computer mDP out port --> U2715H mDP to DP cable --> U2715H DP in port