Okay I've had this problem before (with Windows 8.1) and this is generally the reason and solution (I'm using a notebook and an external display for extended desktop):
At Location 1 I have a Dell E2414H Monitor that is 1920x1080 resolution.
At Location 2 I have a 26" Samsung TV I use for a monitor.. I forget the resolution but it is not 1920 x 1080.
Neither supports the other's resolution so the first time I plug into the other display I have to go to settings and change it to a supported resolution to get it to work, however, this has always worked.
So, the Dell monitor was working just fine on Windows 10. I upgraded a week or two ago, and it worked just fine. Then I went to Location 2 and plugged my notebook into the Samsung TV. I changed the resolution and it worked. Now back at Location #1 I plug into my Dell monitor and change it to 1920 x 1080 and it does not turn on. The monitor always says "Going into Power Save Mode" as soon as I plug it in to the computer or turn it on / off..
Here is an interesting tid-bit that might help troubleshoot this: Windows 10 settings obviously sees the monitor is plugged in because instead of showing 1 screen in the setting it shows 2 screens and gives the normal "Extended Desktop", "Duplicate Displays" etc. etc. options. However, I'm also getting the message that there is no signal from the VGA cable.. I don't think the cable went bad nor the port on my computer. I mean the Dell monitor was working up until the second I unplugged it to go to Location 2. And the Samsung TV worked up until the second I unplugged it to go back to location 1. This is the first time I've switched back and forth between displays on Windows 10.. maybe it's a bug in the OS...
Any ideas how to fix this?
At Location 1 I have a Dell E2414H Monitor that is 1920x1080 resolution.
At Location 2 I have a 26" Samsung TV I use for a monitor.. I forget the resolution but it is not 1920 x 1080.
Neither supports the other's resolution so the first time I plug into the other display I have to go to settings and change it to a supported resolution to get it to work, however, this has always worked.
So, the Dell monitor was working just fine on Windows 10. I upgraded a week or two ago, and it worked just fine. Then I went to Location 2 and plugged my notebook into the Samsung TV. I changed the resolution and it worked. Now back at Location #1 I plug into my Dell monitor and change it to 1920 x 1080 and it does not turn on. The monitor always says "Going into Power Save Mode" as soon as I plug it in to the computer or turn it on / off..
Here is an interesting tid-bit that might help troubleshoot this: Windows 10 settings obviously sees the monitor is plugged in because instead of showing 1 screen in the setting it shows 2 screens and gives the normal "Extended Desktop", "Duplicate Displays" etc. etc. options. However, I'm also getting the message that there is no signal from the VGA cable.. I don't think the cable went bad nor the port on my computer. I mean the Dell monitor was working up until the second I unplugged it to go to Location 2. And the Samsung TV worked up until the second I unplugged it to go back to location 1. This is the first time I've switched back and forth between displays on Windows 10.. maybe it's a bug in the OS...
Any ideas how to fix this?
My Computer
System One
-
- OS
- Windows 8