Unsolved
This post is more than 5 years old
4 Posts
0
154170
January 7th, 2016 09:00
E1916H, input timing not supported
At the company I work for we deploy Dell Optiplex 760 or 780 and two E1916H Dell Monitors. We use the on board DP for one and on board VGA for the other.
Before we send them out to the remote users, we test them, and see no issues, however some users experience the following error:
The current input timing is not supported by the monitor display. Please change your input timing to 1336x768@60hz or any other monitor listed timing as per the monitor specifications.
This error comes up prior to the Dell splash screen, and the users are unable to bypass it without disconnecting one of the two monitors. However when they do so, the encryption software we use errors out and they are unable to get past it. The only workaround is to leave one unplugged (does not matter if it is the VGA or DP) until they get to the windows splash screen, then they can plug in the second monitor and it works fine.
We have been unable to duplicate this error prior to the machines and monitors being sent out or on any of our test machines or when their machine is brought in.
0 events found
DELL-Chris M
Community Manager
•
56.9K Posts
0
January 11th, 2016 12:00
Based on your troubleshooting, wouldn't the culprit be some driver change on the remote systems operating system image?
DarkEpoch
4 Posts
0
January 22nd, 2016 08:00
The error occurs both with the drivers and bios versions that come standard prior to any imaging, and after imaging and updating to the most current drivers and bios versions. This appears to be an issue only with Dell monitors and using the onboard displayport and VGA at the same time as this also occurs using a 22' monitor as well.
DELL-Chris M
Community Manager
•
56.9K Posts
0
January 22nd, 2016 13:00
Because they work on your end in the same configuration, but not when shipped to the users, then something is changing the operating system or driver on their end?
DarkEpoch
4 Posts
0
January 22nd, 2016 14:00
No driver or operating system changes are being done. The only time we are seeing this error prior to the machines being sent out, it only lasts for 10-20 seconds unless we try to go into BIOS. If we attempt to go into BIOS the error will not go away without unplugging one of the two monitors. Again this happens prior to windows loading before you even seen the Dell boot screen so operating system and drivers are not the issue.
DELL-Chris M
Community Manager
•
56.9K Posts
0
January 22nd, 2016 21:00
I see. I was going off your prior statements,
"Before we send them out to the remote users, we test them, and see no issues. We have been unable to duplicate this error prior to the machines and monitors being sent out or on any of our test machines or when their machine is brought in."
You could initiate monitor exchanges through Support. It would be interesting to know if the replacements have the same issue.
DarkEpoch
4 Posts
0
February 29th, 2016 07:00
From my testing it appears to happen every time there is a command prompt type window, such as the dell bios menu select screen, or the boot diagnostics menu. It happens on multiple monitor types, and happens on multiple models of PC. The only common factor is it has to do with the onboard DisplayPort and VGA at the same time. This does not happen on every machine we send out, but only occurs on those using the onboard DP and VGA to do dual monitors. This happens on multiple BIOS versions. No setting in BIOS prevents this error from occurring.