U2715H, input timing not supported

Hi Tunks,

Thanks for posting.

Have you tried this method yet?

http://dell.to/2oHPGO9

I also had a similar issue with my two dell monitors (U3415W & UP3216Q) plugged into SLI GTX1080s.  The U3415W monitor would display "The current input timing is not supported..." message after waking the monitor up from sleep--the other monitor would turn on fine, but was not my primary monitor.  Power toggling the U2415W monitor would fix the issue, but was not a valid long term solution.

This issue started occurring shortly after the Windows Creators edition update (I did not have this issue prior to the update).  After a few days of uninstalling/reinstalling the graphics card driver, I happened to notice while adjusting graphics settings in a game that Windows was recognizing both of my monitors as "Generic PnP Display" rather than by their proper Dell designations (prior to the Creators update, both monitors were identified properly).  I ventured over to the Windows Device Manager, went to displays, right clicked on each monitor and selected "Update Driver".  I allowed Windows to automatically detect the correct driver, and after the update, both displays were properly recognized by their Dell designations.  The input timing issue has not reoccurred since.

Bottom line:  It appears that the Creators update caused some driver/settings issues for some users.  For me, it deleted my display drivers and reset all of my graphics drivers settings.  The graphics drivers settings were obvious and fixed immediately, but the display drivers took me a while to track down.

hi  DELL-Robert P

That is same solution  I was writing above. Low resolution video, or VGA is the same thing

I also had this issue also after installing the Windows Creators edition update on my dell monitor connected via hdmi to my computer. My solution was similar to @mcsands59 except instead I launched the device manager and updated the Display Adapters driver for my "Intel(R) HD Graphics 630" . Windows detected the new driver and downloaded and installed it... after installing the problem monitor worked as expected.

I hope this helps others who have similar issues after installing the Windows Creators Update.

Thanks @mcsands59 for the tips!  

I had this same problem and it turned out to be the cable.  I use a KVM switch to transfer the monitor input between my desktop and work laptop.   I could switch to the desktop no problem, but when I switch to the laptop, I got this message.  So the cable to the laptop must have gone bad from constantly plugging and unplugging.  Hope this helps!

@dumbfire

I understand message "The current input timing ... " is produced by the monitor itself before Windows starts to boot. How do you get to device manager then if the monitor is blank?

Or do this as mentioned previously: 

http://dell.to/2oHPGO9

Start, type device manager, enter, tab, 10 down key, right key, down key, enter, 3 tab keys, right key, 2 tab, 2 enters

Most of the time this hapoens to me waking from sleep, and it's because the monitor isn't receiving the signal fast enough from PC from the delay of waking and usually the monitor is also in sleep mode. Sometimes it's a cheaper cable which is slower or not plugged in good. Easy fix for me is to turn monitor off and back on it will resynchronize at the correct hz, If not go to nvidia and change the hz after the on and off method. Same with the cord unplug and reconnect, then if needed change hz to correct refresh rate. If you started a game already and alt tab and try to do hz change it usually doesn't work, close game turn on n off monitor then restart the game. Gl